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  • 1. Bhatara, Anjali
    et al.
    Laukka, Petri
    Stockholm University, Faculty of Social Sciences, Department of Psychology, Cognitive psychology. Södertörn University, Sweden.
    Boll-Avetisyan, Natalie
    Granjon, Lionel
    Anger Elfenbein, Hillary
    Bänziger, Tanja
    Second Language Ability and Emotional Prosody Perception2016In: PLoS ONE, ISSN 1932-6203, E-ISSN 1932-6203, Vol. 11, no 6, e0156855Article in journal (Refereed)
    Abstract [en]

    The present study examines the effect of language experience on vocal emotion perception in a second language. Native speakers of French with varying levels of self-reported English ability were asked to identify emotions from vocal expressions produced by American actors in a forced-choice task, and to rate their pleasantness, power, alertness and intensity on continuous scales. Stimuli included emotionally expressive English speech (emotional prosody) and non-linguistic vocalizations (affect bursts), and a baseline condition with Swiss-French pseudo-speech. Results revealed effects of English ability on the recognition of emotions in English speech but not in non-linguistic vocalizations. Specifically, higher English ability was associated with less accurate identification of positive emotions, but not with the interpretation of negative emotions. Moreover, higher English ability was associated with lower ratings of pleasantness and power, again only for emotional prosody. This suggests that second language skills may sometimes interfere with emotion recognition from speech prosody, particularly for positive emotions.

  • 2. Bjälkebring, Pär
    et al.
    Västfjäll, Daniel
    Svenson, Ola
    Stockholm University, Faculty of Social Sciences, Department of Psychology, Cognitive psychology.
    Slovic, Paul
    Regulation of Experienced and Anticipated Regret in Daily Decision Making2016In: Emotion, ISSN 1528-3542, E-ISSN 1931-1516, Vol. 16, no 3, 381-386 p.Article in journal (Refereed)
    Abstract [en]

    Decisions were sampled from 108 participants during 8 days using a web-based diary method. Each day participants rated experienced regret for a decision made, as well as forecasted regret for a decision to be made. Participants also indicated to what extent they used different strategies to prevent or regulate regret. Participants regretted 30% of decisions and forecasted regret in 70% of future decisions, indicating both that regret is relatively prevalent in daily decisions but also that experienced regret was less frequent than forecasted regret. In addition, a number of decision-specific regulation and prevention strategies were successfully used by the participants to minimize regret and negative emotions in daily decision making. Overall, these results suggest that regulation and prevention of regret are important strategies in many of our daily decisions.

  • 3. Campanella, Fabio
    et al.
    Palese, Alvisa
    Del Missier, Fabio
    Stockholm University, Faculty of Social Sciences, Department of Psychology, Cognitive psychology. University of Trieste, Italy.
    Moreale, Renzo
    Ius, Tamara
    Shallice, Tim
    Fabbro, Franco
    Skrap, Miran
    Long-Term Cognitive Functioning and Psychological Well-Being in Surgically Treated Patients with Low-Grade Glioma2017In: World Neurosurgery, ISSN 1878-8750, E-ISSN 1878-8769, Vol. 103, 799-808.e9 p.Article in journal (Refereed)
    Abstract [en]

    Objective: The aim of this work is to provide an in-depth investigation of the impact of low-grade gliomas (LGG) and their surgery on patients' cognitive and emotional functioning and well-being, carried out via a comprehensive and multiple-measure psychological and neuropsychological assessment.

    Patients and Methods: Fifty surgically treated patients with LGG were evaluated 40 months after surgery on their functioning over 6 different cognitive domains, 3 core affective/emotional aspects, and 3 different psychological well-being measures to obtain a clearer picture of the long-term impact of illness and surgery on their psychological and relational world. Close relatives were also involved to obtain an independent measure of the psychological dimensions investigated.

    Results: Cognitive status was satisfactory, with only mild short-term memory difficulties. The affective and well-being profile was characterized by mild signs of depression, good satisfaction with life and psychological well-being, and good personality development, with patients perceiving themselves as stronger and better persons after illness. However, patients showed higher emotional reactivity, and psychological well-being measures were negatively affected by epileptic burden. Well-being was related to positive affective/emotional functioning and unrelated to cognitive functioning. Good agreement between patients and relatives was found.

    Conclusions: In the long-term, patients operated on for LGG showed good cognitive functioning, with no significant long-term cognitive sequelae for the extensive surgical approach. Psychologically, patients appear to experience a deep psychological change and maturation, closely resembling that of so-called posttraumatic growth, which, to our knowledge, is for the first time described and quantified in patients with LGG.

  • 4. Carlsson, L. Höglund
    et al.
    Saltvedt, S.
    Anderlid, B. -M.
    Westerlund, Joakim
    Stockholm University, Faculty of Social Sciences, Department of Psychology, Cognitive psychology. Gothenburg University, Sweden.
    Gillberg, C.
    Westgren, M.
    Fernell, E.
    Prenatal ultrasound and childhood autism: long-term follow-up after a randomized controlled trial of first- vs second-trimester ultrasound2016In: Ultrasound in Obstetrics and Gynecology, ISSN 0960-7692, E-ISSN 1469-0705, Vol. 48, no 3, 285-288 p.Article in journal (Refereed)
    Abstract [en]

    Objective: To analyze whether the frequency of autism spectrum disorder (ASD) in a cohort of Swedish children differs between those exposed to ultrasound in the 12th week and those exposed to ultrasound in the 18th week of gestation.

    Methods: The study cohort consisted of approximately 30 000 children born between 1999 and 2003 to mothers who had been randomized to a prenatal ultrasound examination at either 12 or 18weeks' gestation as part of the framework for a study on nuchal translucency screening. The outcome measure in the present study was the rate of ASD diagnoses among the children. Information on ASD diagnoses was based on data from the Swedish social insurance agency concerning childcare allowance granted for ASD.

    Results: Between 1999 and 2003, a total of 14 726 children were born to women who underwent a 12-week ultrasound examination and 14 596 to women who underwent an 18-week ultrasound examination. Of these, 181 (1.2%) and 176 (1.2%) children, respectively, had been diagnosed with ASD. There was no difference in ASD frequency between the early and late ultrasound groups.

    Conclusions: Women subjected to at least one prenatal ultrasound examination at either 12 or 18weeks' gestation had children with similar rates of ASD. However, this result reflects routine care 10-15 years ago in Sweden. Today, higher intensity ultrasound scans are performed more frequently, at earlier stages during pregnancy and for non-medical purposes, implying longer exposure time for the fetus. This change in the use of ultrasound necessitates further follow-up study of the possible effects that high exposure to ultrasound during the gestational period has on the developing brain.

  • 5.
    Cornell Kärnekull, Stina
    et al.
    Stockholm University, Faculty of Social Sciences, Department of Psychology, Perception and psychophysics.
    Jönsson, Fredrik U.
    Stockholm University, Faculty of Social Sciences, Department of Psychology, Cognitive psychology.
    Larsson, Maria
    Stockholm University, Faculty of Social Sciences, Department of Psychology, Perception and psychophysics.
    Olofsson, Jonas K.
    Stockholm University, Faculty of Social Sciences, Department of Psychology, Perception and psychophysics.
    Affected by Smells?: Environmental Chemical Responsivity Predicts Odor Perception2011In: Chemical Senses, ISSN 0379-864X, E-ISSN 1464-3553, Vol. 36, no 7, 641-648 p.Article in journal (Refereed)
    Abstract [en]

    Strong negative reactions, physical symptoms, and behavioral disruptions due to environmental odors are common in the adult population. We investigated relationships among such environmental chemosensory responsivity (CR), personality traits, affective states, and odor perception. Study 1 showed that CR and neuroticism were positively correlated in a sample of young adults (n = 101), suggesting that persons high in neuroticism respond more negatively to environmental odors. Study 2 explored the relationships among CR, noise responsivity (NR), neuroticism, and odor perception (i.e., pleasantness and intensity) in a subset of participants (n = 40). High CR was associated with high NR. Regression analyses indicated that high CR predicted higher odor intensity ratings and low olfactory threshold (high sensitivity) predicted lower pleasantness ratings. However, neuroticism was not directly associated with odor ratings or thresholds. Overall, the results suggest that CR and odor thresholds predict perceptual ratings of odors and that high CR is associated with nonchemosensory affective traits.

  • 6.
    Cornell Kärnekull, Stina
    et al.
    Stockholm University, Faculty of Social Sciences, Department of Psychology, Perception and psychophysics.
    Jönsson, Fredrik U.
    Stockholm University, Faculty of Social Sciences, Department of Psychology, Cognitive psychology.
    Willander, Johan
    Stockholm University, Faculty of Social Sciences, Department of Psychology. University College of Gävle, Sweden.
    Sikström, Sverker
    Larsson, Maria
    Stockholm University, Faculty of Social Sciences, Department of Psychology, Perception and psychophysics.
    Long-Term Memory for Odors: Influences of Familiarity and Identification Across 64 Days2015In: Chemical Senses, ISSN 0379-864X, E-ISSN 1464-3553, Vol. 40, no 4, 259-267 p.Article in journal (Refereed)
    Abstract [en]

    Few studies have investigated long-term odor recognition memory, although some early observations suggested that the forgetting rate of olfactory representations is slower than for other sensory modalities. This study investigated recognition memory across 64 days for high and low familiar odors and faces. Memory was assessed in 83 young participants at 4 occasions; immediate, 4, 16, and 64 days after encoding. The results indicated significant forgetting for odors and faces across the 64 days. The forgetting functions for the 2 modalities were not fundamentally different. Moreover, high familiar odors and faces were better remembered than low familiar ones, indicating an important role of semantic knowledge on recognition proficiency for both modalities. Although odor recognition was significantly better than chance at the 64 days testing, memory for the low familiar odors was relatively poor. Also, the results indicated that odor identification consistency across sessions, irrespective of accuracy, was positively related to successful recognition.

  • 7.
    Cortes, Diana S.
    et al.
    Stockholm University, Faculty of Social Sciences, Department of Psychology, Biological psychology.
    Laukka, Petri
    Stockholm University, Faculty of Social Sciences, Department of Psychology, Cognitive psychology.
    Asperholm, M.
    Fredborg, W.
    Döllinger, Lillian
    Stockholm University, Faculty of Social Sciences, Department of Psychology, Clinical psychology.
    Xiao, Shanshan
    Stockholm University, Faculty of Social Sciences, Department of Psychology, Biological psychology.
    Högman, Lennart
    Stockholm University, Faculty of Social Sciences, Department of Psychology, Biological psychology.
    Dang, J.
    Fischer, Håkan
    Stockholm University, Faculty of Social Sciences, Department of Psychology, Biological psychology.
    Intranasal Oxytocin and Response Inhibition in Young and Older Adults2017Conference paper (Refereed)
    Abstract [en]

    In normal aging, people are confronted with impairment in both socioemotional and cognitive abilities. Specifically, there are age-related declines in inhibitory processes that regulate attention towards irrelevant material. In last years, the intranasal administration of the neuropeptide oxytocin has mainly been related to improvements in several domains such as emotion recognition and memory, but to date the effects of oxytocin in aging remain largely unknown. In a randomized, double blind, placebo controlled, within-subjects study design, we investigated whether oxytocin facilitates inhibitory processing in older adults compared to younger adults. In total, 41 older adults (51% women; age range 65-75 years) and 37 younger adults (49% women; age range 20-30 years) participated in this study two times, receiving a single intranasal dose of 40 IU of placebo and oxytocin in randomized order 45 minutes before engaging in the task. Participants were tested approximately a month apart and mostly at the same hour during both occasions. Inhibition was measured with a Go/NoGo task which included happy and neutral faces as targets (Go stimuli) and distractors (NoGo stimuli) shown on a computer screen. Participants were instructed to press a button any time they saw a target and remain passive when encountering a distractor. Preliminary results indicate effects for happy and neutral faces, but only in the distractor condition. For happy distractors, women rejected correctly happy faces more accurately than men did, both in the placebo and oxytocin conditions. A main effect of age was observed for the neutral distractors, where older adults were more successful in inhibiting responses than younger adults during oxytocin and placebo treatments. We did not observe effects of oxytocin in the different tasks. The role of oxytocin was not clear distinguished in the tasks. In sum, our findings showed that age and gender can influence inhibition but their effects depend on the displayed emotions. This suggests that the ability to inhibit interfering distractors may remain intact despite of age and that deficits in inhibition may be selective. The role of oxytocin in inhibition needs to be further investigated since it is possible that it is context dependent.

  • 8.
    Cortes, Diana S.
    et al.
    Stockholm University, Faculty of Social Sciences, Department of Psychology, Biological psychology.
    Laukka, Petri
    Stockholm University, Faculty of Social Sciences, Department of Psychology, Cognitive psychology.
    Fischer, Håkan
    Stockholm University, Faculty of Social Sciences, Department of Psychology, Biological psychology.
    Age differences in judgments of attractiveness, likeability, and trustworthiness of faces2016In: Program of SANS 2016, 2016, 58-58 p., B-23Conference paper (Other academic)
    Abstract [en]

    People constantly evaluate faces to obtain social information. However, the link between aging and social evaluation of faces is not well understood. Todorov and colleagues introduced a data-driven model defined by valence and dominance as the two main components underlying social judgments of faces. They also created a stimulus set consisting of computer-generated faces which systematically vary along various social dimensions (e.g., Todorov et al., 2013, Emotion, 13, 724-38). We utilized a selection of these facial stimuli to investigate age-related differences in judgments of the following dimensions: attractiveness, competence, dominance, extraversion, likeability, threat, and trustworthiness. Participants rated how well the faces represented the intended social dimensions on 9-point scales ranging from not at all to extremely well. Results from 71 younger (YA; mean age = 23.42 years) and 60 older adults (OA; mean age = 69.19 years) showed that OA evaluated untrustworthy faces as more trustworthy, dislikeable faces as more likeable, and unattractive faces as more attractive compared to YA. OA also evaluated attractive faces as more attractive compared to YA, whereas YA did rate likeable and trustworthy faces as more likeable and trustworthy than did OA. In summary, our findings showed that OA evaluated negative social features less negatively compared to YA. This suggests that older and younger persons may use different cues for social evaluation of faces, and is in line with prior research suggesting age-related decline in the ability to recognize negative emotion expressions.

  • 9.
    Cortes, Diana S.
    et al.
    Stockholm University, Faculty of Social Sciences, Department of Psychology, Biological psychology.
    Laukka, Petri
    Stockholm University, Faculty of Social Sciences, Department of Psychology, Cognitive psychology.
    Lindahl, Christina
    Stockholm University, Faculty of Social Sciences, Department of Psychology, Cognitive psychology.
    Fischer, Håkan
    Stockholm University, Faculty of Social Sciences, Department of Psychology, Biological psychology.
    Memory for faces and voices varies as a function of sex and expressed emotion2017In: PLoS ONE, ISSN 1932-6203, E-ISSN 1932-6203, Vol. 12, no 6, e0178423Article in journal (Refereed)
    Abstract [en]

    We investigated how memory for faces and voices (presented separately and in combination) varies as a function of sex and emotional expression (anger, disgust, fear, happiness, sadness, and neutral). At encoding, participants judged the expressed emotion of items in forced-choice tasks, followed by incidental Remember/Know recognition tasks. Results from 600 participants showed that accuracy (hits minus false alarms) was consistently higher for neutral compared to emotional items, whereas accuracy for specific emotions varied across the presentation modalities (i.e., faces, voices, and face-voice combinations). For the subjective sense of recollection (“remember” hits), neutral items received the highest hit rates only for faces, whereas for voices and face-voice combinations anger and fear expressions instead received the highest recollection rates. We also observed better accuracy for items by female expressers, and own-sex bias where female participants displayed memory advantage for female faces and face-voice combinations. Results further suggest that own-sex bias can be explained by recollection, rather than familiarity, rates. Overall, results show that memory for faces and voices may be influenced by the expressions that they carry, as well as by the sex of both items and participants. Emotion expressions may also enhance the subjective sense of recollection without enhancing memory accuracy.

  • 10. De Smedt, Stefan K.
    et al.
    Fonteyne, Yannick S.
    Muragijimana, Felicienne
    Palmer, Katie
    Stockholm University, Faculty of Social Sciences, Department of Psychology, Cognitive psychology. London School of Hygiene & Tropical Medicine, England.
    Murdoch, Ian
    Glaucoma Surgery Outcome in Rwanda2016In: Journal of glaucoma, ISSN 1057-0829, E-ISSN 1536-481X, Vol. 25, no 8, 698-703 p.Article in journal (Refereed)
    Abstract [en]

    Purpose: To assess long-term intraocular pressure (TOP) outcome after adult trabeculectomy surgery in Central Africa. Patients and Methods: All adult glaucoma patients who underwent trabeculectomy surgery in the Kabgayi Eye Unit, Rwanda between August 2003 and March 2008 were invited for a follow-up visit. Surgical and clinical data were collected from medical records. At the study visit, best-corrected visual acuity was measured and Goldmann applanation tonometry and biomicroscopy were done. Good IOP outcome was defined as both an IOP < 21 mm Hg and achieving >= 30% reduction from the preoperative IOP. Considering first operated eyes, univariate and multivariate logistic regression was used to investigate risk factors for failure. Results: Of 163 individuals operated 3 had died, 118 (74%) participated. Preoperatively, the mean IOP was 31 mm Hg (SD = 11; range, 12 to 60). At the time of the follow-up study visit the mean postoperative IOP was 13 mm Hg (SD = 5; range, 4 to 35). Good IOP outcome was achieved in 132 eyes (84%). Univariate analysis suggested a protective effect against failure of use of anti metabolites [odds ratio (OR) = 0.39; 95% confidence interval (CI), 0.14-1.11; P = 0.07] and a decrease in success with length of follow-up (OR = 3.57; 95% CI, 1.09-12.50; P = 0.03). The latter remained borderline significant with multivariate analysis. Seven eyes went from previously better vision (at least hand movements) down to perception of light or no perception of light after trabeculectomy. Particularly a flat anterior chamber in the first postoperative week (OR = 0.07; 95% CI, 0.01-0.49; P < 0.001) and late hypotony (OR = 0.04; 95% CI, 0.002-0.99; P = 0.004) were significant risk factors for severe visual loss. Conclusions: Trabeculectomy with antimetabolites is one of the best available options for glaucoma management in Africa. However, the IOP control reduced at a follow-up duration beyond 2 years, highlighting the importance of regular long-term follow-up.

  • 11.
    Del Missier, Fabio
    et al.
    Stockholm University, Faculty of Social Sciences, Department of Psychology, Cognitive psychology. University of Trieste, Italy.
    Hansson, Patrik
    Coni, Valentina
    Mäntylä, Timo
    Stockholm University, Faculty of Social Sciences, Department of Psychology, Cognitive psychology.
    Multiple routes from memory to decision making2016Conference paper (Other academic)
    Abstract [en]

    We present two individual-differences investigations, carried out with the aim of identifying the memory correlates of decision-making skills. The investigations were carried out on population-based Swedish samples between 25 and 80 years of age (n > 500). Study 1 showed selective relations between memory processes (i.e., semantic, episodic, and working memory) and diverse aspects of decision-making competence as measured with the A-DMC battery. The age-related declines observed in the more cognitively-demanding decision-making tasks were mediated by the age-related differences in working memory or episodic memory. Study 2 confirmed the findings even when controlling for the influence of processing speed and sensory functioning. Overall, the results showed that different memory processes fulfill different functional roles in diverse judgment and decision-making tasks.

  • 12.
    Del Missier, Fabio
    et al.
    Stockholm University, Faculty of Social Sciences, Department of Psychology, Cognitive psychology. University of Trieste, Italy.
    Hansson, Patrik
    Parker, Andrew M.
    Bruine de Bruin, Wändi
    Nilsson, Lars-Göran
    Stockholm University, Faculty of Social Sciences, Department of Psychology, Cognitive psychology. Stockholm University, Faculty of Social Sciences, Aging Research Center (ARC), (together with KI).
    Mäntylä, Timo
    Stockholm University, Faculty of Social Sciences, Department of Psychology, Cognitive psychology.
    Unraveling the Aging Skein: Disentangling Sensory and Cognitive Predictors of Age-related Differences in Decision Making2017In: Journal of Behavioral Decision Making, ISSN 0894-3257, E-ISSN 1099-0771, Vol. 30, no 1, 123-139 p.Article in journal (Refereed)
    Abstract [en]

    Age-related differences in sensory functioning, processing speed, and working memory have been identified as three significant predictors of the age-related performance decline observed in complex cognitive tasks. Yet, the assessment of their relative predictive capacity and interrelations is still an open issue in decision making and cognitive aging research. Indeed, no previous investigation has examined the relationships of all these three predictors with decision making. In an individual-differences study, we therefore disentangled the relative contribution of sensory functioning, processing speed, and working memory to the prediction of the age-related decline in cognitively demanding judgment and decision-making tasks. Structural equation modeling showed that the age-related decline in working memory plays an important predictive role, even when controlling for sensory functioning, processing speed, and education. Implications for research on decision making and cognitive aging are discussed.

  • 13. Del Missier, Fabio
    et al.
    Mäntylä, Timo
    Stockholm University, Faculty of Social Sciences, Department of Psychology, Cognitive psychology.
    Hansson, Patrik
    Bruine de Bruin, Wändi
    Parker, Andrew M.
    Nilsson, Lars-Göran
    Stockholm University, Faculty of Social Sciences, Department of Psychology, Cognitive psychology.
    Predictors of Decision Making Across the Adult Life-Span: An Individual-Differences Study2016Conference paper (Other academic)
    Abstract [en]

    Age-related decline in complex cognitive tasks has been explained by changes in sensory functioning, processing speed, and working memory. However, there is still no agreement on the relative importance of these factors, and their relative role in decision making has not been investigated. In an individual-difference study on a population-based Swedish sample of adults (N = 563, age range 30-89), we disentangled the contribution of sensory decline, processing speed, and working memory measures to age-related changes in three cognitively-demanding decision-making tasks of the Adult Decision-Making Competence Battery (Resistance to Framing, Applying Decision Rules, Under/Overconfidence). Structural equation modeling showed that working memory is a significant predictor even when the influence of sensory variables, processing speed, and education (as a control for cohort effects) is taken into account. Moreover, the effects of sensory functioning and processing speed on decision making were mediated by working memory. These findings indicate that the age-related decline in complex decision-making tasks may not be entirely explained by changes in lower-level processes, highlighting the functional role of working memory processes.

  • 14.
    Del Missier, Fabio
    et al.
    Stockholm University, Faculty of Social Sciences, Department of Psychology, Cognitive psychology. Leeds University Business School, UK; University of Trieste, Italy.
    Ranyard, Rob
    Bonini, Nicolao
    Perceived inflation: The role of product accessibility and attitudes towards inflation2016In: Journal of Economic Psychology, ISSN 0167-4870, E-ISSN 1872-7719, Vol. 56, 97-106 p.Article in journal (Refereed)
    Abstract [en]

    Little is known about the psychological mechanisms underlying judgments of perceived inflation as empirical evidence is sparse. In two studies, we investigated two factors that are expected to play a significant role in global judgments of perceived inflation: product accessibility and attitudes towards inflation. In Study 1 (N = 253), primed participants retrieved five products whose prices had increased (or decreased) in the past year before expressing a judgment of past inflation (versus non-primed participants with no retrieval task). In Study 2 (N = 101) participants were merely exposed to a series of products, and asked to estimate their frequency of purchase, before judging past inflation. In one condition, the prices of the majority of products had actually increased in the last year, while in another condition they had decreased. In both studies, attitudes towards inflation were also measured. Product priming consistently affected inflation judgments in the direction of an assimilation effect. Also, more negative attitudes towards inflation were associated with higher judgments of perceived inflation. Path analysis confirmed that both product accessibility and attitudes are potential bases for judgments of perceived inflation. These findings suggest that multiple psychological influences may underlie global judgments of perceived inflation.

  • 15.
    Ekström, Ingrid
    et al.
    Stockholm University, Faculty of Social Sciences, Department of Psychology, Perception and psychophysics.
    Sjölund, Sara
    Stockholm University, Faculty of Social Sciences, Department of Psychology, Perception and psychophysics.
    Nordin, Steven
    Nordin Adolfsson, Annelie
    Adolfsson, Rolf
    Nilsson, Lars-Göran
    Stockholm University, Faculty of Social Sciences, Department of Psychology, Cognitive psychology.
    Larsson, Maria
    Stockholm University, Faculty of Social Sciences, Department of Psychology, Perception and psychophysics.
    Olofsson, Jonas K.
    Stockholm University, Faculty of Social Sciences, Department of Psychology, Perception and psychophysics. Swedish Collegium for Advanced Study, Sweden.
    Smell Loss Predicts Mortality Risk Regardless of Dementia Conversion2017In: Journal of The American Geriatrics Society, ISSN 0002-8614, E-ISSN 1532-5415, Vol. 65, no 6, 1238-1243 p.Article in journal (Refereed)
    Abstract [en]

    Objectives

    To determine whether dementia could explain the association between poor olfactory performance and mortality risk within a decade-long follow-up period.

    Design

    Prospective cohort study.

    Setting

    Betula Study, Umeå, Sweden.

    Participants

    A population-based sample of adult participants without dementia at baseline aged 40 to 90 (N = 1,774).

    Measurements

    Olfactory performance using the Scandinavian Odor-Identification Test (SOIT) and self-reported olfactory function; several social, cognitive, and medical risk factors at baseline; and incident dementia during the following decade.

    Results

    Within the 10-year follow-up, 411 of 1,774 (23.2%) participants had died. In a Cox model, the association between higher SOIT score and lower mortality was significant (hazard ratio (HR) = 0.74 per point interval, 95% confidence interval (CI) = 0.71-0.77, P < .001). The effect was attenuated, but remained significant, after controlling for age, sex, education, and health-related and cognitive variables (HR = 0.92, 95% CI = 0.87-0.97, P = .001). The association between SOIT score and mortality was retained after controlling for dementia conversion before death (HR = 0.92, 95% CI = 0.87-0.97, P = .001). Similar results were obtained for self-reported olfactory dysfunction.

    Conclusion

    Poor odor identification and poor self-reported olfactory function are associated with greater likelihood of future mortality. Dementia does not attenuate the association between olfactory loss and mortality, suggesting that olfactory loss might mark deteriorating health, irrespective of dementia.

  • 16. Feingold, Daniel
    et al.
    Hasson-Ohayon, Ilanit
    Laukka, Petri
    Stockholm University, Faculty of Social Sciences, Department of Psychology, Cognitive psychology. Södertörn University, Sweden.
    Vishne, Tali
    Dembinsky, Yael
    Kravets, Shlomo
    Emotion recognition deficits among persons with schizophrenia: Beyond stimulus complexity level and presentation modality2016In: Psychiatry Research, ISSN 0165-1781, E-ISSN 1872-7123, Vol. 240, 60-65 p.Article in journal (Refereed)
    Abstract [en]

    Studies have shown that persons with schizophrenia have lower accuracy in emotion recognition compared to persons without schizophrenia. However, the impact of the complexity level of the stimuli or the modality of presentation has not been extensively addressed. Forty three persons with a diagnosis of schizophrenia and 43 healthy controls, matched for age and gender, were administered tests assessing emotion recognition from stimuli with low and high levels of complexity presented via visual, auditory and semantic channels. For both groups, recognition rates were higher for high-complexity stimuli compared to low-complexity stimuli. Additionally, both groups obtained higher recognition rates for visual and semantic stimuli than for auditory stimuli, but persons with schizophrenia obtained lower accuracy than persons in the control group for all presentation modalities. Persons diagnosed with schizophrenia did not present a level of complexity specific deficit or modality-specific deficit compared to healthy controls. Results suggest that emotion recognition deficits in schizophrenia are beyond level of complexity of stimuli and modality, and present a global difficulty in cognitive functioning.

  • 17. Forero, Diego A.
    et al.
    Herteleer, Liesbet
    De Zutter, Sonia
    Norrback, Karl-Fredrik
    Nilsson, Lars-Göran
    Stockholm University, Faculty of Social Sciences, Department of Psychology, Cognitive psychology.
    Adolfsson, Rolf
    Callaerts, Patrick
    Del-Favero, Jurgen
    A network of synaptic genes associated with schizophrenia and bipolar disorder2016In: Schizophrenia Research, ISSN 0920-9964, E-ISSN 1573-2509, Vol. 172, no 1-3, 68-74 p.Article in journal (Refereed)
    Abstract [en]

    Identification of novel candidate genes for schizophrenia (SZ) and bipolar disorder (BP), two psychiatric disorders with large epidemiological impacts, is a key research area in neurosciences and psychiatric genetics. Previous evidence from genome-wide studies suggests an important role for genes involved in synaptic plasticity in the risk for SZ and BP. We used a convergent genomics approach, combining different lines of biological evidence, to identify genes involved in the cAMP/PKA/CREB functional pathway that could be novel candidates for BP and SZ: CREB1, CREM, GRIN2C, NPY2R, NF1, PPP3CB and PRKAR1A. These 7 genes were analyzed in a HapMap based association study comprising 48 common SNPs in 486 SZ, 351 BP patients and 514 control individuals recruited from an isolated population in Northern Sweden. Genetic analysis showed significant allelic associations of SNPs in PRKAR1A with SZ and of PPP3CB and PRKAR1A with BP. Our results highlight the feasibility and the importance of convergent genomic data analysis for the identification of candidate genes and our data provide support for the role of common inherited variants in synaptic genes and their involvement in the etiology of BP and SZ.

  • 18.
    Fridner, Ann
    et al.
    Stockholm University, Faculty of Social Sciences, Department of Psychology, Work and organizational psychology. Karolinska Institutet.
    Gustafsson Sendén, Marie
    Stockholm University, Faculty of Social Sciences, Department of Psychology, Cognitive psychology.
    Wall, Maja
    Stockholm University, Faculty of Social Sciences, Department of Psychology, Work and organizational psychology.
    Schenck-Gustafsson, Karin
    Stockholm University, Faculty of Social Sciences, Department of Psychology, Work and organizational psychology. Karolinska Institutet.
    Why do General Practitioners Self-Diagnose and Self-Prescribe Drugs?2016In: Book of Proceedings. 12th Conference of the European Academy of Occupational Health Psychology: OHP in Times of Change: Society and the workplace / [ed] K. Teoh, V. Dediu, N.J. Saade, & J. Hassard, Nottingham, UK, 2016, 203-203 p.Conference paper (Refereed)
    Abstract [en]

    Objective: Physicians tend to demonstrate inappropriate behavior when it comes to taking care of their own health. Self-prescribing or self-treatment seems to be practiced in many countries, and self-treated illnesses are found to be more common among general practitioners. For the physician such behavior is a threat to their own health, and as a consequence their patients might not be able to receive optimal health care. The purpose of this study is to examine the relationship between help seeking behavior, sickness presenteeism, exhaustion, and self- treatment among general practitioners.

    Method: This cross-sectional study was conducted in 2013 among GPs employed in one City Council in Sweden using a questionnaire on health and work factors. The criterion variable “To self-diagnose and self-treat” was measured with a single item from the Physician Career Path Questionnaire (PCPQ; Fridner, 2004). Exhaustion was measured with a scale from the Oldenburg Burnout Inventory, OLBI (α = .82; Demerouti et al., 2001, 2003). “Sickness presenteeism” and “Taking vacation due to stress” was measured with single items, also from the PCPQ (Fridner, 2004). For the analyses, we used hierarchical multiple regression.

    Results: Altogether 193 (63,9%) female GPs and 109 (36,1%) male GPs answered the questionnaire, a 44% response-rate. Among them 46,2% stated they had diagnosed and treated themselves for a condition for which they would have referred a patient to a specialist. Our regression analysis model revealed that those physicians who self-treated themselves were also significantly more sickness present at work. Adding to this, exhaustion among the GPs was also included in the model.

    Conclusions: This study shows that self-treatment is not an isolated behavior, but occurs together with exhaustion and sickness presenteeism, indicating a quite severe situation for their health, which would need to be investigated by other doctors than themselves. This needs to be further investigated and taken into account by the National Board of Health and Welfare, County Councils and Medical Associations, and for future physicians our medical schools. 

  • 19.
    Gustafsson Sendén, Marie
    et al.
    Stockholm University, Faculty of Social Sciences, Department of Psychology, Cognitive psychology.
    Schenck-Gustafsson, Karin
    Fridner, Ann
    Stockholm University, Faculty of Social Sciences, Department of Psychology, Work and organizational psychology.
    Gender differences in Reasons for Sickness Presenteeism - a study among GPs in a Swedish health care organization2016In: Annals of Occupational and Environmental Medicine, ISSN 2052-4374, Vol. 28, 50Article in journal (Refereed)
    Abstract [en]

    Background: It is common that physicians go to work while sick and therefore it is important to understand the reasons behind. Previous research has shown that women and men differ in health and health related behavior. In this study, we examine gender differences among general practitioners who work while sick.

    Methods: General practitioners (GP’s) working in outpatient care in a Swedish city participated in the study (n = 283; women = 63 %; response rate = 41 %). Data were obtained from a large web-based questionnaire about health and organization within primary care. Two questions about sickness presenteeism (going to work while sick) were included; life-long and during the past 12 months, and five questions about reasons. We controlled for general health, work-family conflict and demographic variables.

    Results: Female physicians reported sickness presenteeism more often than male physicians. Work-family conflict mediated the association between gender and sickness presenteeism.

    Women reported reasons related with “concern for others” and “workload” more strongly than men. Men reported reasons related with “capacity” and “money” more strongly than women. These differences are likely effects of gender stereotyping and different family-responsibilities.

    Conclusions: Gender socialization and gender stereotypes may influence work and health-related behavior. Because sickness presenteeism is related with negative effects both on individuals and at organizational levels, it is important that managers of health organizations understand the reasons for this, and how gender roles may influence the prevalence of sickness presenteeism and the reasons that female and male GPs give for their behavior.

  • 20.
    Hedner, Margareta
    et al.
    Stockholm University, Faculty of Social Sciences, Department of Psychology, Perception and psychophysics.
    Nilsson, Lars-Göran
    Stockholm University, Faculty of Social Sciences, Department of Psychology, Cognitive psychology.
    Olofsson, Jonas K.
    Stockholm University, Faculty of Social Sciences, Department of Psychology, Perception and psychophysics.
    Bergman, Olle
    Department of Pharmacology, Göteborg University, Göteborg, Sweden.
    Eriksson, Elias
    Department of Pharmacology, Göteborg University, Göteborg, Sweden.
    Nyberg, Lars
    Department of Radiation Sciences and Integrative Medical Biology, Umeå, Sweden.
    Larsson, Maria
    Stockholm University, Faculty of Social Sciences, Department of Psychology, Perception and psychophysics.
    Age-Related Olfactory Decline is Associated with the BDNF Val66met Polymorphism: Evidence from a Population-Based Study2010In: Frontiers in Aging Neuroscience, ISSN 1663-4365, Vol. 2, no 7, 24- p.Article in journal (Refereed)
    Abstract [en]

    The present study investigates the effect of the brain-derived neurotrophic factor (BDNF) val66met polymorphism on change in olfactory function in a large scale, longitudinal population-based sample (n = 836). The subjects were tested on a 13 item force-choice odor identification test on two test occasions over a 5-year-interval. Sex, education, health-related factors, and semantic ability were controlled for in the statistical analyses. Results showed an interaction effect of age and BDNF val66met on olfactory change, such that the magnitude of olfactory decline in the older age cohort (70–90years old at baseline) was larger for the val homozygote carriers than for the met carriers. The older met carriers did not display larger age-related decline in olfactory function compared to the younger group. The BDNF val66met polymorphism did not affect the rate of decline in the younger age cohort (45–65years). The findings are discussed in the light of the proposed roles of BDNF in neural development and maintenance.

  • 21.
    Hiort, Jenny
    et al.
    Stockholm University, Faculty of Social Sciences, Department of Psychology.
    Lindau, Maria
    Stockholm University, Faculty of Social Sciences, Department of Psychology, Cognitive psychology.
    Löfgren, Monika
    Young pain patients’ experience in primary care: A qualitative study2017In: Nordic Psychology, ISSN 1901-2276, E-ISSN 1904-0016, Vol. 69, no 2, 83-99 p.Article in journal (Refereed)
    Abstract [en]

    The purpose was to explore interview data from young adults with long-standing pain about their experience of contacts with caregivers in a primary care setting, in order to synthesize and qualitatively analyse their reports about how they were received. Method: An emergent qualitative design was used. Open thematic research interviews were conducted with 11 young people (1 man, 10 women) (aged 20–31 years) with long-term pain. The interviews were recorded, transcribed verbatim and analysed using inductive thematic content analysis. Result: The analyses resulted in three themes; distrust experienced from care staffslonelinessand hopelessness forming the main theme Young adult with long-term pain. The informants described how they struggled with living with the pain, fighting with the care system and to obtain help. They reportedly felt they were not trusted and that they were not given any explanations or information why the pain spread and worsened. This left them feeling abandoned and alone and without hope concerning their pain, their feelings; and with doubts concerning their prospects. Much concern and doubt were expressed about their future work situation; whether they would be able to do work for which they had trained, and whether they would ever get any career opportunities. Conclusion: Living with long-term pain as a young adult and experiencing mistrust when in care might lead to feelings of loneliness, dependence and hopelessness and an existence marked by suffering and dependence. The experienced mistrust confined the young adult instead of allowing growth towards an adult identity and opportunities.

  • 22. Holding, Benjamin C.
    et al.
    Laukka, Petri
    Stockholm University, Faculty of Social Sciences, Department of Psychology, Cognitive psychology.
    Fischer, Håkan
    Stockholm University, Faculty of Social Sciences, Department of Psychology, Biological psychology.
    Bänziger, Tanja
    Axelsson, John
    Stockholm University, Faculty of Social Sciences, Stress Research Institute. Karolinska Institutet.
    Sundelin, Tina
    Stockholm University, Faculty of Social Sciences, Stress Research Institute. Karolinska Institutet.
    Multimodal Emotion Recognition Is Resilient to Insufficient Sleep: Results From Cross-Sectional and Experimental Studies2017In: Sleep, ISSN 0161-8105, E-ISSN 1550-9109, Vol. 40, no 11, zsx145Article in journal (Refereed)
    Abstract [en]

    Objectives: Insufficient sleep has been associated with impaired recognition of facial emotions. However, previous studies have found inconsistent results, potentially stemming from the type of static picture task used. We therefore examined whether insufficient sleep was associated with decreased emotion recognition ability in two separate studies using a dynamic multimodal task.

    Methods: Study 1 used a cross-sectional design consisting of 291 participants with questionnaire measures assessing sleep duration and self-reported sleep quality for the previous night. Study 2 used an experimental design involving 181 participants where individuals were quasi-randomized into either a sleep-deprivation (N = 90) or a sleep-control (N = 91) condition. All participants from both studies were tested on the same forced-choice multimodal test of emotion recognition to assess the accuracy of emotion categorization.

    Results: Sleep duration, self-reported sleep quality (study 1), and sleep deprivation (study 2) did not predict overall emotion recognition accuracy or speed. Similarly, the responses to each of the twelve emotions tested showed no evidence of impaired recognition ability, apart from one positive association suggesting that greater self-reported sleep quality could predict more accurate recognition of disgust (study 1).

    Conclusions: The studies presented here involve considerably larger samples than previous studies and the results support the null hypotheses. Therefore, we suggest that the ability to accurately categorize the emotions of others is not associated with short-term sleep duration or sleep quality and is resilient to acute periods of insufficient sleep.

  • 23. Holding, J.B.C.
    et al.
    Laukka, Petri
    Stockholm University, Faculty of Social Sciences, Department of Psychology, Cognitive psychology.
    Fischer, Håkan
    Stockholm University, Faculty of Social Sciences, Department of Psychology, Biological psychology.
    Axelsson, John
    Sundelin, Tina
    Total sleep deprivation does not impact emotioncategorisation in dynamic stimuli2016In: Abstracts of the 23rd Congress of the European Sleep Research Society, 13–16 September 2016, Bologna, Italy. Journal of Sleep Research, 2016, Vol. 25(S1), 152-152 p., P193Conference paper (Refereed)
    Abstract [en]

    Previous studies have highlighted a deficit in facial emotion recognition after sleep loss. However, while some studies suggest an overall deficit in ability, others have only found effects in individual emotions, or no effect at all. The aim of this study was to investigate this relationship in a large sample and to utilise a dynamic test of emotion recognition in multiple modalities. 145 individuals (91 female, ages 18–45) participated in a sleep-deprivation experiment. Participants were randomised into: one night of total sleep deprivation (TSD) or normal sleep (8–9 h in bed). The following day participants completed a computerised emotional recognition test, consisting of 72 visual, audio, and audio-visual clips, representing 12 different emotions. The stimuli were divided into “easy” and “hard” depending on the intensity of emotional display. A mixed ANOVA revealed significant main effects of modality and difficulty, P < 0.001, but no main effect of condition, P = 0.31, on emotional recognition accuracy. Additionally, there was no interaction between condition and difficulty, P = 0.96, or modality, P = 0.67. This study indicates that sleep deprivation does not reduce the ability to recognise emotions. Given that some studies have only found effects on single emotions, it is possible that the effects of sleep loss are more specific than investigated here. However, it is also possible that previous findings relate to the types of static stimuli used. The ability to recognise emotions is key to social perception; this study suggests that this ability is resilient to one night of sleep deprivation.

  • 24. Höglund Carlsson, Lotta
    et al.
    Westerlund, Joakim
    Stockholm University, Faculty of Social Sciences, Department of Psychology, Cognitive psychology. Gothenburg University, Sweden.
    Barnevik Olsson, Martina
    Eriksson, Mats A.
    Hedvall, Åsa
    Gillberg, Christopher
    Fernell, Elisabeth
    Autism spectrum disorders before diagnosis: results from routine developmental surveillance at 18 months2016In: Acta Paediatrica, ISSN 0803-5253, E-ISSN 1651-2227, Vol. 105, no 7, 823-828 p.Article in journal (Refereed)
    Abstract [en]

    Aim: This study investigated the results from the national, routine 18-month developmental surveillance at Child Healthcare Centres (CHCs) on children later diagnosed with autism spectrum disorder (ASD). Methods: Child Healthcare Centre records of 175 children, diagnosed with ASD before 4.5 years in Stockholm County, Sweden, were reviewed regarding the results of the eight-item neurodevelopmental surveillance. Results were contrasted with normative data from the general child population in Stockholm County. Results: More than one-third of the total ASD group, including half of the group with ASD and intellectual disability (ID), did not pass the required number of items, compared to one in 50 in the general child population. Of those with ASD and ID who had passed, more than one-third experienced developmental regression after 18 months of age. If the CHC surveillance had considered reported regulatory problems - crying, feeding and sleeping - then another 10% of the children with ASD and ID could have been identified during this surveillance. Conclusion: The existing CHC surveillance traced half of the group of children who were later diagnosed with ASD combined with intellectual disability. Adding an item on regulatory problems to the 18-month surveillance would have increased this number by another 10%.

  • 25. Karlsson, Sara
    et al.
    Henningsson, Susanne
    Hovey, Daniel
    Zettergren, Anna
    Jonsson, Lina
    Cortes, Diana S.
    Stockholm University, Faculty of Social Sciences, Department of Psychology, Biological psychology.
    Melke, Jonas
    Laukka, Petri
    Stockholm University, Faculty of Social Sciences, Department of Psychology, Cognitive psychology.
    Fischer, Håkan
    Stockholm University, Faculty of Social Sciences, Department of Psychology, Biological psychology.
    Westberg, Lars
    Social memory associated with estrogen receptor polymorphisms in women2016In: Social Cognitive & Affective Neuroscience, ISSN 1749-5016, E-ISSN 1749-5024, Vol. 11, no 6, 877-883 p.Article in journal (Refereed)
    Abstract [en]

    The ability to recognize the identity of faces and voices is essential for social relationships. Although the heritability of social memory is high, knowledge about the contributing genes is sparse. Since sex differences and rodent studies support an influence of estrogens and androgens on social memory, polymorphisms in the estrogen and androgen receptor genes (ESR1, ESR2, AR) are candidates for this trait. Recognition of faces and vocal sounds, separately and combined, was investigated in 490 subjects, genotyped for 10 single nucleotide polymorphisms (SNPs) in ESR1, four in ESR2 and one in the AR. Four of the associations survived correction for multiple testing: women carrying rare alleles of the three ESR2 SNPs, rs928554, rs1271572 and rs1256030, in linkage disequilibrium with each other, displayed superior face recognition compared with non-carriers. Furthermore, the uncommon genotype of the ESR1 SNP rs2504063 was associated with better recognition of identity through vocal sounds, also specifically in women. This study demonstrates evidence for associations in women between face recognition and variation in ESR2, and recognition of identity through vocal sounds and variation in ESR1. These results suggest that estrogen receptors may regulate social memory function in humans, in line with what has previously been established in mice.

  • 26.
    Kubik, Veit
    et al.
    Stockholm University, Faculty of Social Sciences, Department of Psychology, Cognitive psychology.
    Olofsson, Jonas K.
    Stockholm University, Faculty of Social Sciences, Department of Psychology, Perception and psychophysics. Swedish Collegium of Advanced Study, Sweden.
    Nilsson, Lars-Göran
    Stockholm University, Faculty of Social Sciences, Aging Research Center (ARC), (together with KI). Stockholm Brain Institute, Stockholm; Umeå University, Sweden.
    Jönsson, Fredrik U.
    Stockholm University, Faculty of Social Sciences, Department of Psychology, Cognitive psychology.
    Putting action memory to the test: Testing affects subsequent restudy but not long-term forgetting of action events2016In: Journal of Cognitive Psychology, ISSN 2044-5911, E-ISSN 2044-592X, Vol. 28, no 2, 209-219 p.Article in journal (Refereed)
    Abstract [en]

    Testing memory typically enhances subsequent re-encoding of information (“indirect” testing effect) and, as compared to restudy, it also benefits later long-term retention (“direct” testing effect). We investigated the effect of testing on subsequent restudy and 1-week retention of action events (e.g. “water the plant”). In addition, we investigated if the type of recall practice (noun-cued vs. verb-cued) moderates these testing benefits. The results showed an indirect testing effect that increased following noun-cued recall of verbs as compared to verb-cued recall of nouns. In contrast, a direct testing effect on the forgetting rate of performed actions was not reliably observed, neither for noun- nor verb-cued recall. Thus, to the extent that this study successfully dissociated direct and indirect testing-based enhancements, they seem to be differentially effective for performed actions, and may rely on partially different mechanisms.

  • 27.
    Kubik, Veit
    et al.
    Stockholm University, Faculty of Social Sciences, Department of Psychology, Cognitive psychology.
    Todorov, Ivo
    Stockholm University, Faculty of Social Sciences, Department of Psychology, Cognitive psychology.
    Del Missier, Fabio
    Stockholm University, Faculty of Social Sciences, Department of Psychology, Cognitive psychology. University of Trieste, Italy.
    Mäntylä, Timo
    Stockholm University, Faculty of Social Sciences, Department of Psychology, Cognitive psychology.
    Multiple deadlines in metric space: Multitasking reflects selectively coordinate, but not categorical, spatial processing2016Conference paper (Other academic)
    Abstract [en]

    We often need to monitor and coordinate multiple deadlines. One way to handle these temporal demands might be to represent future deadlines as a pattern of spatial relations. More specifically, we tested the hypothesis that multitasking reflects selective effects of coordinate (i.e., metric) relational processing. Participants completed two multitasking sessions under concurrent processing demands of coordinate versus categorical spatial information. We expected and observed that multitasking impairs concurrent coordinate, rather than categorical, spatial processing. In Experiment 1, coordinate-task performance was selectively decreased, while multitasking performance was equal under both load conditions. When emphasizing equal (primary/secondary) task-importance in Experiment 2, it was only multitasking performance that was selectively reduced under the coordinate-load condition. Thus, effective multitasking may partly reflect coordinate-relational processing.

  • 28.
    Larsson, Maria
    et al.
    Stockholm University, Faculty of Social Sciences, Department of Psychology, Perception and psychophysics.
    Ekström, Ingrid
    Stockholm University, Faculty of Social Sciences, Department of Psychology, Perception and psychophysics.
    Sjölund, Sara
    Stockholm University, Faculty of Social Sciences, Department of Psychology, Perception and psychophysics.
    Nordin, Steven
    Nordin Adolfsson, Annelie
    Adolfsson, Rolf
    Nilsson, Lars-Göran
    Stockholm University, Faculty of Social Sciences, Department of Psychology, Cognitive psychology.
    Olofsson, Jonas K.
    Stockholm University, Faculty of Social Sciences, Department of Psychology, Perception and psychophysics.
    Loss of Olfactory Function Predicts Mortality Irrespective of Dementia Conversion: 10-year follow-up of an age-varied sample2016In: 17th International Symposium on Olfaction and Taste (ISOT2016), Yokohama, Japan, June 5-9, 2016. Chemical Senses, 41(9), Oxford University Press, 2016, Vol. 41(9), E216- p.Conference paper (Refereed)
    Abstract [en]

    The objective of this study was to examine the association between performance in odor identification and future mortality in a community cohort of adults aged between 40 and 90 years. We assessed olfactory performance with a 13-item-version of the Scandinavian Odor Identification Test (SOIT). The results showed that during follow-up (mean=9.4 years, standard deviation=2.23), 411 of 1774 (23.2%) participants died. In a Cox model, the association between higher SOIT score and mortality was highly significant (hazard ratio [HR]=0.74, per point interval, 95% confidence interval [CI]=0.71–0.77, p<0.001). The effect was attenuated, but remained significant after controlling for age, sex, education, and health and cognitive variables that were also associated with an increased risk of mortality (HR=0.92, 95% CI=0.87–0.97, p=0.001). Controlling for dementia conversion prior to death did not attenuate the association between SOIT score and mortality (HR=0.92, 95% CI=0.87–0.97, p=0.001). Similar results were obtained for olfactory sensitivity as assessed by self-report. Overall, the present findings show that poor odor identification performance is associated with an increased likelihood of future mortality in middle-aged and older adults, after controlling for social, cognitive, and medical risk factors. Most importantly, controlling for the development of dementia did not attenuate the association between odor identification and mortality, suggesting that olfactory decline might mark deteriorating health also irrespective of dementia.

  • 29.
    Larsson, Maria
    et al.
    Stockholm University, Faculty of Social Sciences, Department of Psychology, Perception and psychophysics.
    Willander, Johan
    Stockholm University, Faculty of Social Sciences, Department of Psychology, Perception and psychophysics.
    Karlsson, Kristina
    Stockholm University, Faculty of Social Sciences, Department of Psychology, Cognitive psychology.
    Arshamian, Artin
    Stockholm University, Faculty of Social Sciences, Department of Psychology, Perception and psychophysics.
    Olfactory LOVER: behavioral and neural correlates of autobiographical odor memory2014In: Frontiers in Psychology, ISSN 1664-1078, E-ISSN 1664-1078, Vol. 5, 312Article in journal (Refereed)
    Abstract [en]

    Autobiographical memories (AMs) are personally experienced events that may be localized in time and space. In the present work we present an overview targeting memories evoked by the sense of smell. Overall, research indicates that autobiographical odor memory is different than memories evoked by our primary sensory systems; sight, and hearing. Here, observed differences from a behavioral and neuroanatomical perspective are presented. The key features of an olfactory evoked AM may be referred to the LOVER acronym-Limbic, Old, Vivid, Emotional, and Rare.

  • 30.
    Larsson, Maria
    et al.
    Stockholm University, Faculty of Social Sciences, Department of Psychology, Perception and psychophysics.
    Öberg-Blåvarg, Christina
    Uppsala Universitet.
    Jönsson, Fredrik U.
    Stockholm University, Faculty of Social Sciences, Department of Psychology, Cognitive psychology.
    Bad odors stick better than good ones: Olfactory qualities and odor recognition2009In: Experimental psychology (Göttingen), ISSN 1618-3169, E-ISSN 2190-5142, Vol. 56, no 6, 375-380 p.Article in journal (Refereed)
    Abstract [en]

    The influences of perceived odor qualities on the retention of olfactory information across the adult lifespan were examined. Young (19–36 years), young-old (60–74 years), and old (75–91 years) adults (n = 202) rated a set of unfamiliar odors across a series of perceptual dimensions (i.e., pleasantness, intensity, and irritability) at encoding. The overall results indicated that memory for unpleasant olfactory information was better than that for pleasant odors across the lifespan. Also, participants showed better retention for odors perceived with high intensity and irritability than for odors rated with low or medium scores. Interestingly, the old adults showed selective beneficial memory effects for odors rated as highly irritable. To the extent that perceptions of high irritability reflect an activation of the trigeminal sensory system, this finding suggests that older adults may use trigeminal components in odor information to compensate for age-related impairments in olfactory memory.

  • 31.
    Larsson Sundqvist, Max
    et al.
    Stockholm University, Faculty of Social Sciences, Department of Psychology, Cognitive psychology.
    Mäntylä, Timo
    Stockholm University, Faculty of Social Sciences, Department of Psychology, Cognitive psychology.
    Jönsson, Fredrik U.
    Stockholm University, Faculty of Social Sciences, Department of Psychology, Cognitive psychology.
    Assessing Boundary Conditions of the Testing Effect: On the Relative Efficacy of Covert vs. Overt Retrieval2017In: Frontiers in Psychology, ISSN 1664-1078, E-ISSN 1664-1078, Vol. 8, 1018Article in journal (Refereed)
    Abstract [en]

    Repeated testing during learning often improves later memory, which is often referred to as the testing effect. To clarify its boundary conditions, we examined whether the testing effect was selectively affected by covert (retrieved but not articulated) or overt (retrieved and articulated) response format. In Experiments 1 and 2, we compared immediate (5 min) and delayed (1 week) cued recall for paired associates following study-only, covert, and overt conditions, including two types of overt articulation (typing and writing). A clear testing effect was observed in both experiments, but with no selective effects of response format. In Experiments 3 and 4, we compared covert and overt retrieval under blocked and random list orders. The effect sizes were small in both experiments, but there was a significant effect of response format, with overt retrieval showing better final recall performance than covert retrieval. There were no significant effects of blocked versus random list orders with respect to the testing effect produced. Taken together, these findings suggest that, under specific circumstances, overt retrieval may lead to a greater testing effect than that of covert retrieval, but because of small effect sizes, it appears that the testing effect is mainly the result of retrieval processes and that articulation has fairly little to add to its magnitude in a paired-associates learning paradigm.

  • 32.
    Laukka, Petri
    Stockholm University, Faculty of Social Sciences, Department of Psychology, Cognitive psychology.
    Vocal Communication of Emotion2017In: Encyclopedia of Personality and Individual Differences / [ed] Virgil Zeigler-Hill, Todd K. Shackelford, Springer, 2017Chapter in book (Refereed)
    Abstract [en]

    Vocal communication of emotion refers to the process wherein speakers express emotions by modulating nonverbal aspects of their speech, and listeners utilize the nonverbal aspects of speech in order to make inferences about the emotional experience of the speaker.

  • 33.
    Laukka, Petri
    et al.
    Stockholm University, Faculty of Social Sciences, Department of Psychology, Cognitive psychology.
    Elfenbein, Hillary Anger
    Thingujam, Nutankumar S.
    Rockstuhl, Thomas
    Iraki, Frederick K.
    Chui, Wanda
    Althoff, Jean
    The expression and recognition of emotions in the voice across five nations: A lens model analysis based on acoustic features2016In: Journal of Personality and Social Psychology, ISSN 0022-3514, E-ISSN 1939-1315, Vol. 111, no 5, 686-705 p.Article in journal (Refereed)
    Abstract [en]

    This study extends previous work on emotion communication across cultures with a large-scale investigation of the physical expression cues in vocal tone. In doing so, it provides the first direct test of a key proposition of dialect theory, namely that greater accuracy of detecting emotions from one’s own cultural group—known as in-group advantage—results from a match between culturally specific schemas in emotional expression style and culturally specific schemas in emotion recognition. Study 1 used stimuli from 100 professional actors from five English-speaking nations vocally conveying 11 emotional states (anger, contempt, fear, happiness, interest, lust, neutral, pride, relief, sadness, and shame) using standard-content sentences. Detailed acoustic analyses showed many similarities across groups, and yet also systematic group differences. This provides evidence for cultural accents in expressive style at the level of acoustic cues. In Study 2, listeners evaluated these expressions in a 5 × 5 design balanced across groups. Cross-cultural accuracy was greater than expected by chance. However, there was also in-group advantage, which varied across emotions. A lens model analysis of fundamental acoustic properties examined patterns in emotional expression and perception within and across groups. Acoustic cues were used relatively similarly across groups both to produce and judge emotions, and yet there were also subtle cultural differences. Speakers appear to have a culturally nuanced schema for enacting vocal tones via acoustic cues, and perceivers have a culturally nuanced schema in judging them. Consistent with dialect theory’s prediction, in-group judgments showed a greater match between these schemas used for emotional expression and perception.

  • 34.
    Lindau, Maria
    et al.
    Stockholm University, Faculty of Social Sciences, Department of Psychology, Cognitive psychology.
    Almkvist, Ove
    Stockholm University, Faculty of Social Sciences, Department of Psychology, Biological psychology.
    Mohammed, A.
    Effects of Stress on Learning and Memory2016In: Stress: concepts, cognition, emotion, and behavior / [ed] George Fink, Amsterdam: Academic Press, 2016, 1, 153-159 p.Chapter in book (Other academic)
  • 35.
    Lindholm, Torun
    et al.
    Stockholm University, Faculty of Social Sciences, Department of Psychology, Personality, Social and Developmental Psychology.
    Memon, Amina
    Svenson, Ola
    Stockholm University, Faculty of Social Sciences, Department of Psychology, Cognitive psychology.
    Social influences on dissonance reduction in medical decision making2016In: Book of abstracts, Kraków: Centre for Social Cognitive Studies , 2016, 28-28 p.Conference paper (Other academic)
    Abstract [en]

    Two studies investigated social influences on dissonance reduction in medical decision making. Study 1 compared decision-consistent biases when individuals freely made-, or when another person made the decision. Participants read a scenario in which one of two patients should be prioritized for surgery. Facts about the patients were given on counter-balanced scales. Participants decided themselves whom to prioritize, or were told that a physician made the decision, and then reproduced the facts from memory. When choosing freely, participants distorted memories of facts to become more supportive of the choice. This effect was evident, albeit reduced, when the decision was made by a physician.

    Study 2 investigated majority/minority feedback effects on dissonance reduction for decisions concerning ingroup or outgroup members. Swedish participants decided whether a physician should comply or not to the request of a terminally ill patient, with a Swedish or a Turkish name, who asked for help to commit suicide. After making their decision, participants were informed that a majority or a minority had chosen the same alternative. Decisions about an in-group member were consolidated more if participants received minority, than majority feedback. This reversed for decisions on out-group member. Results suggest important social moderators of dissonance reduction strategies.

  • 36. Ljungberg, Jessica K.
    et al.
    Hansson, Patrik
    Adolfsson, Rolf
    Nilsson, Lars-Göran
    Stockholm University, Faculty of Social Sciences, Department of Psychology, Cognitive psychology.
    The effect of language skills on dementia in a Swedish longitudinal cohort2016In: Linguistic Approaches to Bilingualism, ISSN 1879-9264, E-ISSN 1879-9272, Vol. 6, no 1-2, 190-204 p.Article in journal (Refereed)
    Abstract [en]

    Recent findings indicate that bilingualism delay the onset of dementia. Using data from the Betula longitudinal cohort study on memory, health and aging (www.betula.su.se) the issue of a possible protective effect of bilingualism was addressed. Monolingual (n = 736) and bilingual (n = 82) participants (= 60 years) without dementia at inclusion were followed for incident dementia over a time-period up to 10 years. In total, 112 participants developed dementia. Analyses were performed with Cox proportional hazards regression adjusted for age, sex, and presence/absence of the Apolipoprotein E (APOE) epsilon 4 allele, with dementia outcome as the dependent variable. Results showed no delayed onset of dementia in bilinguals compared to monolinguals. However, because of the findings from a study using participants from the same population showing beneficial longitudinal effects of bilingualism on episodic memory; we argue that our results may depend on the frequency of use of the second language after retirement.

  • 37. Magnussen, S.
    et al.
    Andersson, J.
    Cornoldi, C.
    Larsson, Maria
    Stockholm University, Faculty of Social Sciences, Department of Psychology, Perception and psychophysics.
    Nilsson, Lars-Göran
    Stockholm University, Faculty of Social Sciences, Department of Psychology, Cognitive psychology.
    What people believe about memory.2006In: Memory, ISSN 0965-8211, Vol. 14, no 5, 595-613 p.Article in journal (Refereed)
    Abstract [en]

    Two representative samples of adult Norwegians (n = 2000) were asked a set of general and specific questions regarding their beliefs and opinions about human memory. The results indicate that on many questions, such as time of the earliest memories, inhibiting effects of collaboration, and memory for dramatic versus ordinary events, the views of the general public concurred with current research findings, and people in general had realistic views about their own memory performance. On other questions, such as the reliability of olfactory as compared with visual and auditory memory, the memory of small children in comparison with that of adults, the likelihood of repression of adult traumatic memories, and on more general questions such as the possibility of training memory and the capacity limitations of long-term memory, a large proportion of the participants expressed views that are less supported by scientific evidence. Implications of these findings are briefly discussed.

  • 38.
    Mäntylä, Timo
    et al.
    Stockholm University, Faculty of Social Sciences, Department of Psychology, Cognitive psychology.
    Coni, Valentina
    Kubik, Veit
    Stockholm University, Faculty of Social Sciences, Department of Psychology, Cognitive psychology.
    Todorov, Ivo
    Stockholm University, Faculty of Social Sciences, Department of Psychology, Cognitive psychology.
    Del Missier, Fabio
    Stockholm University, Faculty of Social Sciences, Department of Psychology, Cognitive psychology. University of Trieste, Italy.
    Time takes space: selective effects of multitasking on concurrent spatial processing2017In: Cognitive Processing, ISSN 1612-4782, E-ISSN 1612-4790, Vol. 18, no 3, 229-235 p.Article in journal (Refereed)
    Abstract [en]

    Many everyday activities require coordination and monitoring of complex relations of future goals and deadlines. Cognitive offloading may provide an efficient strategy for reducing control demands by representing future goals and deadlines as a pattern of spatial relations. We tested the hypothesis that multiple-task monitoring involves time-to-space transformational processes, and that these spatial effects are selective with greater demands on coordinate (metric) than categorical (nonmetric) spatial relation processing. Participants completed a multitasking session in which they monitored four series of deadlines, running on different time scales, while making concurrent coordinate or categorical spatial judgments. We expected and found that multitasking taxes concurrent coordinate, but not categorical, spatial processing. Furthermore, males showed a better multitasking performance than females. These findings provide novel experimental evidence for the hypothesis that efficient multitasking involves metric relational processing.

  • 39.
    Mäntylä, Timo
    et al.
    Stockholm University, Faculty of Social Sciences, Department of Psychology, Cognitive psychology.
    Todorov, Ivo
    Stockholm University, Faculty of Social Sciences, Department of Psychology, Cognitive psychology.
    Kubik, Veit
    Stockholm University, Faculty of Social Sciences, Department of Psychology, Cognitive psychology.
    Del Missier, Fabio
    Stockholm University, Faculty of Social Sciences, Department of Psychology, Cognitive psychology. University of Trieste, Italy.
    Deadlines in Space: Selective Effects of Coordinate Spatial Processing in Multitasking2016Conference paper (Other academic)
    Abstract [en]

    Many everyday activities require coordination and monitoring of multiple deadlines. One way to handle these temporal demands might be to represent future goals and deadlines as a pattern of spatial relations. We examined the hypothesis that spatial ability, in addition to executive functioning, contributes to individual differences in multitasking. Participants completed a multitasking session in which they monitored four digital clocks running at different rates. We predicted and found that individual differences in spatial ability and executive functions were independent predictors of multiple-task performance. Individual differences in spatial ability were also selectively related to multiple-task performance, as only coordinate spatial processing, but not categorical, predicted multitasking, even beyond executive functioning and numeracy. Furthermore, males outperformed females in spatial ability and multitasking and these sex differences generalized to a complex simulation of everyday multitasking. Menstrual changes moderated these effects in that sex differences in coordinate spatial processing and multitasking were observed between males and females in the luteal phase of the menstrual cycle, but not between males and females at menses. Overall, these findings suggest that multiple task performance reflects independent contributions of spatial ability and executive functioning. Furthermore, our results support the distinction of categorical vs. coordinate spatial processing, and suggest that these two basic relational processes are selectively affected by female sex hormones and differentially effective in transforming and handling temporal patterns as spatial relations in the context of multitasking.

  • 40. Obermeyer, Sven
    et al.
    Kubik, Veit
    Stockholm University, Faculty of Social Sciences, Department of Psychology, Cognitive psychology.
    Schaich, Andreas
    Kolling, Thorsten
    Knopf, Monika
    Learning to recognize younger faces at an older age2017In: Aging Clinical and Experimental Research, ISSN 1594-0667, E-ISSN 1720-8319, Vol. 29, no 2, 191-196 p.Article in journal (Refereed)
    Abstract [en]

    Objectives: Processing of horizontal face cues has been shown to be an important element in face recognition of adults aged up to 30 years. In contrast, horizontally aligned facial features do not appear to contribute to older adults’ (60–75 years) recognition in a similar way. To this end, we investigated potential learning effects on the ability to recognize faces based on horizontal features. Previous research suggests face recognition based on all face information experiences an accelerated decline after the age of 70. However, recognition based only on horizontal face information has not yet been studied in old age (75+ years of age). Thus, we investigated whether older adults (aged up to as well as starting at 75 years) can learn to recognize faces based on horizontal face cues alone.

    Method: One younger and two older adult groups (20–30, 60–75, and 75+ years) were familiarized with a high and a low amount of previously unfamiliar faces—some containing all face cues and others containing only horizontal face cues (reduced information). Subsequently, all groups received a recognition test.

    Results: Repeated learning increased natural face recognition for all three age groups when all face cues were available. However, increases in face recognition were only observed for younger adults when horizontal face cued were only available.

    Discussion: The importance of horizontally aligned spatial frequencies for recognizing human faces is lessened before the age of 60 (and plateaus thereon), whereas recognition of stimuli containing all face cues is still capable of improvement.

  • 41.
    Olofsson, Jonas K.
    et al.
    Stockholm University, Faculty of Social Sciences, Department of Psychology, Perception and psychophysics. Swedish Collegium for Advanced Study, Sweden.
    Josefsson, Maria
    Ekström, Ingrid
    Wilson, Donald
    Nyberg, Lars
    Nordin, Steven
    Nordin Adolfsson, Annelie
    Adolfsson, Rolf
    Nilsson, Lars-Göran
    Stockholm University, Faculty of Social Sciences, Department of Psychology, Cognitive psychology.
    Larsson, Maria
    Stockholm University, Faculty of Social Sciences, Department of Psychology, Perception and psychophysics.
    Long-term episodic memory decline is associated with olfactory deficits only in carriers of ApoE-є42016In: Neuropsychologia, ISSN 0028-3932, E-ISSN 1873-3514, Vol. 85, 1-9 p.Article in journal (Refereed)
    Abstract [en]

    The ɛ4 allele of the Apolipoprotein E gene is a genetic risk factor for late-onset dementia of the Alzheimers' type (DAT), which is characterized by loss of both episodic memoryand olfactory functions. Little is known about the possible role of ɛ4 in the association between ongoing episodic memory decline and olfactory deficits in the general population, but such information is relevant in determining the relevance of olfaction as a marker of DAT risk. The present study was based on a large, population-based sample (n=1087, aged 45–90 years, of which 324 were ɛ4-carriers). Episodic memory change rates were established using data collected every 5 years for a 10–20 year interval leading up to an olfactory assessment using the Scandinavian Odor Identification Test at the last wave of data collection. Participants were classified according to whether or not their episodic memory ability declined more rapidly than the age-typical norm (by >1SD). Our main result is that only in ɛ4-carriers was episodic memory decline associated with odor identification impairment. In individuals without ɛ4, odor identification was unrelated to episodic memory decline status. Follow-up analyses indicated that this moderation by ɛ4 was due to the olfactory nature of the identification test, and that the effect was not caused by 63 individuals with dementia. Our results suggest that the ɛ4 determines the functional association between ongoing episodic memory decline and olfaction. These findings are consistent with the notion that ɛ4-carriers with DAT, compared to non-carriers, display a cortical atrophy pattern that is more focused on mediotemporal lobe regions supporting olfactory and episodic memory functions. Olfactory and memory assessments might provide complementary information on mediotemporal atrophy prior to clinical dementia onset, but the ɛ4 should be considered when using olfactory assessment as an early-stage indicator.

  • 42.
    Olofsson, Jonas K.
    et al.
    Stockholm University, Faculty of Social Sciences, Department of Psychology, Perception and psychophysics.
    Nordin, Steven
    Umeå universitet.
    Wiens, Stefan
    Stockholm University, Faculty of Social Sciences, Department of Psychology, Perception and psychophysics.
    Hedner, Margareta
    Stockholm University, Faculty of Social Sciences, Department of Psychology, Perception and psychophysics.
    Nilsson, Lars-Göran
    Stockholm University, Faculty of Social Sciences, Department of Psychology, Cognitive psychology.
    Larsson, Maria
    Stockholm University, Faculty of Social Sciences, Department of Psychology, Perception and psychophysics.
    Odor identification impairment in carriers of ApoE-epsilon 4 is independent of clinical dementia2010In: Neurobiology of Aging, ISSN 0197-4580, E-ISSN 1558-1497, Vol. 31, no 4, 567-577 p.Article in journal (Refereed)
    Abstract [en]

    The ApoE acme is expressed in olfactory brain structures and is believed to play a role in neuronal regenerative processes as well as in development of Alzheimer's disease (AD), the most common form of dementia The epsilon 4 allele lots been reported to be associated with compromised odor identification ability in the elderly, and this deficit has been interpreted as a sign of pre-diagnostic AD However, because it has not been demonstrated that the relationship between the epsilon 4 allele and odor identification is mediated by dementia, it is possible that the epsilon 4 allele may have an effect on odor identification over and above any effects of dementia. The present study investigated effects of ApoE-status on odor identification in a lame, population-based sample (n =1236) of adults (45-80 years), who were assessed for dementia at time of testing and 5 years later The results showed that the epsilon 4 allele was associated with an odor identification deficit among, elderly participants (75-80) Critically. this effect remained after current and pre-diagnostic dementia, vocabulary, global cognitive status and health variables were partialled out The present results suggest that the ApoE gene plays a role in olfactory functioning that is independent of dementia conversion within 5 years

  • 43.
    Olofsson, Jonas K.
    et al.
    Stockholm University, Faculty of Social Sciences, Department of Psychology, Perception and psychophysics. Department of Psychology, Umeå University, Umeå, Sweden; Stockholm Brain Institute, Stockholm, Sweden.
    Rönnlund, Michael
    Umeå universitet, Umeå University.
    Nordin, Steven
    Umeå universitet, Umeå University.
    Nyberg, Lars
    Umeå universitet, Umeå University.
    Nilsson, Lars-Göran
    Stockholm University, Faculty of Social Sciences, Department of Psychology, Cognitive psychology. Stockholm Brain Institute, Stockholm, Sweden.
    Larsson, Maria
    Stockholm University, Faculty of Social Sciences, Department of Psychology, Perception and psychophysics. Stockholm Brain Institute, Stockholm, Sweden.
    Odor Identification Deficit as a Predictor of Five-Year Global Cognitive Change: Interactive Effects with Age and ApoE-ε42009In: Behavior Genetics, ISSN 0001-8244, E-ISSN 1573-3297, Vol. 39, no 5, 496-503 p.Article in journal (Refereed)
    Abstract [en]

    Olfactory impairments are present in common neurodegenerative disorders and predict conversion to dementia in non-demented individuals with cognitive impairment. In cognitively intact elderly, evidence is sparse regarding the role of olfactory deficits in predicting cognitive impairment. The present study investigated predictors of 5-year prospective decline in the Mini-Mental State Examination (MMSE) in a large (n = 501), population-based sample of elderly (65–90 years) individuals. All participants were genotyped for the ApoE gene, assessed for health factors, and were non-demented at the baseline assessment. After partialling out the influences of demographic and health-factors at baseline and dementia at follow-up, poor odor identification ability in combination with older age and the ApoE-ε4 allele predicted larger prospective global cognitive decline. This effect could not be produced by a vocabulary test. In sum, the findings suggest that an olfactory deficit can dissociate between benign and malign global cognitive development in non-demented, very old ε4-carriers, who are at high risk of developing dementia.

  • 44. Olsson, M. Barnevik
    et al.
    Lundström, S.
    Westerlund, Joakim
    Stockholm University, Faculty of Social Sciences, Department of Psychology, Cognitive psychology. Gothenburg University, Sweden.
    Giacobini, M. B.
    Gillberg, C.
    Fernell, E.
    Preschool to School in Autism: Neuropsychiatric Problems 8 Years After Diagnosis at 3 Years of Age2016In: Journal of autism and developmental disorders, ISSN 0162-3257, E-ISSN 1573-3432, Vol. 46, no 8, 2749-2755 p.Article in journal (Refereed)
    Abstract [en]

    The study presents neuropsychiatric profiles of children aged 11 with autism spectrum disorder, assessed before 4.5 years, and after interventions. The original group comprised a community sample of 208 children with ASD. Parents of 128 participated-34 with average intellectual function, 36 with borderline intellectual function and 58 with intellectual disability. They were interviewed using the Autism-Tics, AD/HD and other Comorbidities interview. Criteria for a clinical/subclinical proxy of ASD were met by 71, 89 and 95 %, respectively. Criteria for at least one of ASD, AD/HD, Learning disorder or Developmental Coordination Disorder were met by 82, 94 and 97 %. More than 90 % of children with a preschool diagnosis of ASD have remaining neuropsychiatric problems at 11, despite early intervention.

  • 45.
    Peira, Nathalie
    et al.
    Stockholm University, Faculty of Social Sciences, Department of Psychology, Perception and psychophysics. Uppsala University, Sweden.
    Ziaei, Maryam
    Persson, Jonas
    Stockholm University, Faculty of Social Sciences, Aging Research Center (ARC), (together with KI). Stockholm University, Faculty of Social Sciences, Department of Psychology, Cognitive psychology.
    Age differences in brain systems supporting transient and sustained processes involved in prospective memory and working memory2016In: NeuroImage, ISSN 1053-8119, E-ISSN 1095-9572, Vol. 125, 745-755 p.Article in journal (Refereed)
    Abstract [en]

    In prospective memory (PM), an intention to act in response to an external event is formed, retained, and at a later stage, when the event occurs, the relevant action is performed. PM typically shows a decline in late adulthood, which might affect functions of daily living. The neural correlates of this decline are not well understood. Here, 15 young (6 female; age range = 23-30 years) and 16 older adults (5 female; age range = 64-74 years) were scanned with fMRI to examine age-related differences in brain activation associated with event-based PM using a task that facilitated the separation of transient and sustained components of PM. We show that older adults had reduced performance in conditions with high demands on prospective and working memory, while no age-difference was observed in low-demanding tasks. Across age groups, PM task performance activated separate sets of brain regions for transient and sustained responses. Age-differences in transient activation were found in fronto-striatal and MTL regions, with young adults showing more activation than older adults. Increased activation in young, compared to older adults, was also found for sustained PM activation in the IFG. These results provide new evidence that PM relies on dissociable transient and sustained cognitive processes, and that age-related deficits in PM can be explained by an inability to recruit PM-related brain networks in old age.

  • 46. Ranyard, Rob
    et al.
    Del Missier, Fabio
    Stockholm University, Faculty of Social Sciences, Department of Psychology, Cognitive psychology. University of Trieste, Italy.
    Bonini, Nicolao
    Pietroni, Davide
    The Citizen’s Judgements of Prices and Inflation2017In: Economic Psychology / [ed] Rob Ranyard, Wiley-Blackwell, 2017, 155-170 p.Chapter in book (Refereed)
    Abstract [en]

    This chapter provides an introduction to the economic psychology of price and inflation judgments, focusing on the main findings and the more relevant psychological theories. The first part of the chapter is devoted to the process of price evaluation. This is a fundamental process underlying individual economic and consumer behaviour, because purchase decisions usually imply a judgment of the price of a target product or service, and price is a fundamental evaluation dimension. Thus, it is important to understand the processes that lead individuals to deem a given price as cheap or expensive. We will initially focus on theories centred on the construct of a reference price, defined as a benchmark price used in relative evaluation processes. These theories share the assumption that one or more reference prices, stored in memory or available in the external environment, are used to make sense of the target price via comparative evaluation processes. We then briefly consider how prices are evaluated according to three psychological theories (prospect theory, decision by sampling, and norm theory), which provide further insight into evaluation processes and their effects. Finally, we will take into account the factors affecting retrieval of reference prices and briefly mention other aspects relevant to price evaluation. The second part of the chapter is devoted to perceived inflation and inflation expectations. Inflation refers to changes in the value of money over time. From an individual's point of view inflation is revealed as changes in the cost of living (price inflation) and changes in income, for example wage inflation. Past price inflation is officially measured by the annual percentage change in the total cost of a basket of goods and services purchased by the typical consumer. In contrast, official measures of price inflation expectations are forecasts of price changes in the basket of goods - the most widely used being based on complex models of the economy. People's perceptions of past and expectations of future inflation have been found to differ from official statistics, often substantially. It is important to understand how this occurs, since, as we show, perceived inflation influences expected inflation, which in turn affects economic behaviour such as wage negotiations, borrowing, saving and spending. Furthermore, because of such effects on individual and household behaviour, and because public expectations are used to inform monetary policy, perceived and expected inflation indirectly affect the performance of the macro-economy. After reviewing evidence of how people’s perceptions and expectations are formed we turn to research demonstrating some of their consequences. The chapter concludes by outlining some of the policy implications of the research reviewed.

  • 47.
    Stanciu, Ingrid
    et al.
    Stockholm University, Faculty of Social Sciences, Department of Psychology, Perception and psychophysics.
    Larsson, Maria
    Stockholm University, Faculty of Social Sciences, Department of Psychology, Perception and psychophysics.
    Nordin, Steven
    Adolfsson, Rolf
    Nilsson, Lars-Göran
    Stockholm University, Faculty of Social Sciences, Department of Psychology, Cognitive psychology.
    Olofsson, Jonas K.
    Stockholm University, Faculty of Social Sciences, Department of Psychology, Perception and psychophysics. Swedish Collegium for Advanced Study (SCAS), Sweden.
    Olfactory Impairment and Subjective Olfactory Complaints Independently Predict Conversion to Dementia: A Longitudinal, Population-Based Study2014In: Journal of the International Neuropsychological Society, ISSN 1355-6177, E-ISSN 1469-7661, Vol. 20, no 2, 209-217 p.Article in journal (Refereed)
    Abstract [en]

    We examined whether conversion to dementia can be predicted by self-reported olfactory impairment and/or by an inability to identify odors. Common forms of dementia involve an impaired sense of smell, and poor olfactory performance predicts cognitive decline among the elderly. We followed a sample of 1529 participants, who were within a normal range of overall cognitive function at baseline, over a 10-year period during which 159 were classified as having a dementia disorder. Dementia conversion was predicted from demographic variables, Mini-Mental State Examination score, and olfactory assessments. Self-reported olfactory impairment emerged as an independent predictor of dementia. After adjusting for effects of other predictors, individuals who rated their olfactory sensitivity as worse than normal were more likely to convert to dementia than those who reported normal olfactory sensitivity (odds ratio [OR] = 2.17; 95% confidence interval [CI] [1.40, 3.37]). Additionally, low scores on an odor identification test also predicted conversion to dementia (OR per 1 point increase = 0.89; 95% CI [0.81, 0.98]), but these two effects were additive. We suggest that assessing subjective olfactory complaints might supplement other assessments when evaluating the risk of conversion to dementia. Future studies should investigate which combination of olfactory assessments is most useful in predicting dementia conversion. (JINS, 2014, 20, 1-9)

  • 48. Stenlund, Tova
    et al.
    Jönsson, Fredrik U.
    Stockholm University, Faculty of Social Sciences, Department of Psychology, Cognitive psychology.
    Jonsson, Bert
    Group discussions and test-enhanced learning: individual learning outcomes and personality characteristics2017In: Educational Psychology, ISSN 0144-3410, E-ISSN 1469-5820, Vol. 37, no 2, 145-156 p.Article in journal (Refereed)
    Abstract [en]

    This paper focuses on the factors that are likely to play a role in individual learning outcomes from group discussions, and it includes a comparison featuring test-enhanced learning. A between-groups design (N = 98) was used to examine the learning effects of feedback if provided to discussion groups, and to examine whether group discussions benefit learning when compared to test-enhanced learning over time. The results showed that feedback does not seem to have any effect if provided to a discussion group, and that test-enhanced learning leads to better learning than the discussion groups, independent of retention interval. Moreover, we examined whether memory and learning might be influenced by the participants’ need for cognition (NFC). The results showed that those scoring high on NFC remembered more than those who scored low. To conclude, testing trumps discussion groups from a learning perspective, and the discussion groups were also the least beneficial learning context for those scoring low on NFC.

  • 49. Stomby, Andreas
    et al.
    Boraxbekk, Carl-Johan
    Lundquist, Anders
    Nordin, Annelie
    Nilsson, Lars-Göran
    Stockholm University, Faculty of Social Sciences, Department of Psychology, Cognitive psychology. Umeå University, Sweden.
    Adolfsson, Rolf
    Nyberg, Lars
    Olsson, Tommy
    Higher diurnal salivary cortisol levels are related to smaller prefrontal cortex surface area in elderly men and women2016In: European Journal of Endocrinology, ISSN 0804-4643, E-ISSN 1479-683X, Vol. 175, no 2, 117-126 p.Article in journal (Refereed)
    Abstract [en]

    Objective: Elevated cortisol levels with aging have been associated with atrophy of the hippocampus and prefrontal cortex (PFC), as well as with impaired cognitive functions in men. However, coexisting diseases have confounded many studies examining these relationships. Studies in women are lacking. Our objective was to test whether salivary cortisol levels were related to morphology of the hippocampus and the PFC, and to cognitive performance.

    Design: A cross-sectional study including 200 elderly (55-80 years old) men and women.

    Method: We used magnetic resonance imaging, tests of episodic-, semantic-, and working memory, visuospatial ability, and cortisol levels in four saliva samples collected during 1 day.

    Results: Area under the curve (AUC) for cortisol levels was negatively related to cortical surface area of the left anterior cingulate gyrus (caudal P < 0.001; rostral P = 0.006), right lateral orbitofrontal cortex (P = 0.004), and right rostral middle frontal gyrus (P = 0.003). In women, there was also a negative relationship with cortical surface area in the left rostral middle frontal gyrus (P = 0.006). No relationship was found between cortisol levels and hippocampal volume.

    Conclusion: This study suggests that the structure of the medial PFC is related to cortisol levels in both elderly women and men.

  • 50.
    Svenson, Ola
    Stockholm University, Faculty of Social Sciences, Department of Psychology, Cognitive psychology. Decision Research, USA.
    Towards a framework for human judgements of quantitative information: the numerical judgement process, NJP model2016In: Journal of Cognitive Psychology, ISSN 2044-5911, E-ISSN 2044-592X, Vol. 28, no 7, 884-898 p.Article in journal (Refereed)
    Abstract [en]

    This contribution presents a review and a theoretical process framework for human intuitive numerical judgments based on numerical information, The NJP model. The model is descriptive and includes one or several of the following stages, each consisting of information processing and solution strategies (1) problem readings (2) recognitions, (3) associations, (4) similarity assessments, (5) problem interpretations, (6) computations, (7) marker nominations, (8) start value selections and (9) adjustments. three main types of strategies are used separately, in sequence or simultaneously with others in and across stages: (i) Associative strategies, e.g., an answer is retrieved immediately, (ii) Computational strategies, different algorithms are applied to the information and (iii) Analogue strategies, visual analogue representations, e.g., anchoring and adjustment. The paper concludes that a generic model of intuitive judgments will inspire further studies of the psychological processes activated when a judge makes an intuitive numerical judgment.

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