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Age differences in arousal level at encoding and emotional memory enhancement after a one-year retention interval
Stockholm University, Faculty of Social Sciences, Department of Psychology.
Manuscript (Other academic)
Identifiers
URN: urn:nbn:se:su:diva-24683OAI: oai:DiVA.org:su-24683DiVA: diva2:198094
Note
Part of urn:nbn:se:su:diva-7346Available from: 2008-02-05 Created: 2008-02-05 Last updated: 2010-01-13Bibliographically approved
In thesis
1. Age differences in arousal, perception of affective pictures, and emotional memory enhancement: Appraisal, Electrodermal activity, and Imaging data
Open this publication in new window or tab >>Age differences in arousal, perception of affective pictures, and emotional memory enhancement: Appraisal, Electrodermal activity, and Imaging data
2008 (English)Doctoral thesis, comprehensive summary (Other academic)
Abstract [en]

In contrast to effortful cognitive functions, emotional functioning may remain stable or even be enhanced in older adults. It is unclear how affective functions in aging correspond to subjective experiences and physiological changes. In Study I, ratings of emotional intensity and neural activity to facial expressions using functional magnetic resonance imaging (fMRI) were analyzed in younger and older adults. Negative expressions resulted in increased neural activity in the right amygdala and hippocampus in younger adults, and increased activation in the right insular cortex in older adults. There were no age differences in subjective ratings. In Study II, subjective ratings of, and skin conductance response (SCR) to, neutral and negative pictures were studied. The ratings of negative pictures were higher for older adults compared to younger adults. SCRs increased in both age groups for the negative pictures, but magnitude of SCRs was significantly larger in younger adults. Finally, in Study III, emotional memory after a one-year retention interval was tested. The memory performance of both age groups was higher in response to negative pictures compared to neutral ones, although the performance was generally higher for younger adults. SCR at encoding was the better arousal predictor for memory, but only in younger adults. The results indicate age-related changes in affective processing. Age differences may involve a gradual shift from bottom-up processes, to more top-down processes. The results are discussed in a wider lifespan perspective taking into consideration the accumulated life experience of older adults.

Place, publisher, year, edition, pages
Stockholm: Psykologiska institutionen, 2008. 74 p.
Keyword
Aging, Affective function, subjective ratings, SCRs, FMRI, Pictures, Emotional memory enhancement, Bottom-up and Top-down processing
National Category
Psychology
Research subject
Psychology
Identifiers
urn:nbn:se:su:diva-7346 (URN)978-91-7155-583-0 (ISBN)
Public defence
2008-03-05, David Magnussonsalen (U31), hus 8, Frescati Hagväg 8, Stockholm, 10:00
Opponent
Supervisors
Available from: 2008-02-05 Created: 2008-02-05 Last updated: 2012-05-07Bibliographically approved

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CiteExportLink to record
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Citation style
  • apa
  • ieee
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  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
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  • asciidoc
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