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High negative valence does not protect emotional event-related potentials from spatial inattention and perceptual load
Stockholm University, Faculty of Social Sciences, Department of Psychology.
Stockholm University, Faculty of Social Sciences, Department of Psychology.
Stockholm University, Faculty of Social Sciences, Department of Psychology.
Stockholm University, Faculty of Social Sciences, Department of Psychology.
2012 (English)In: Cognitive, Affective, & Behavioral Neuroscience, ISSN 1530-7026, E-ISSN 1531-135X, Vol. 12, no 1, 151-160 p.Article in journal (Refereed) Published
Abstract [en]

Previous research suggests that intense, emotional pictures at fixation elicit an early posterior negativity (EPN) and a late positive potential (LPP) despite manipulations of spatial inattention and perceptual load. However, if high emotional intensity protects against such manipulations, then these manipulations should reduce emotional effects on EPN and LPP more strongly for medium than for intense emotional pictures. To test this prediction, pictures that were high negative, medium negative, or neutral were shown at fixation, and a small letter string was superimposed on the picture center. When participants attended the pictures, there were clear emotional effects on EPN and LPP. When participants attended the letter string, the emotional effects on LPP decreased; this decrease was smaller for medium than for high negative pictures. Thus, opposite of predictions, spatial inattention reduced the emotional effects more strongly for high than for medium negative pictures. As a manipulation of perceptual load, participants performed the letter task with one, three, or six relevant letters. Irrespective of load, EPN and LPP were similar for high and medium negative pictures. Our findings suggest that high negative valence does not protect EPN and LPP more strongly from effects of spatial inattention and perceptual load than does medium negative valence.

Place, publisher, year, edition, pages
2012. Vol. 12, no 1, 151-160 p.
Keyword [en]
Attention, Perceptual load, Event-related potentials, Early posterior negativity, Late positive potential
National Category
Psychology
Identifiers
URN: urn:nbn:se:su:diva-76978DOI: 10.3758/s13415-011-0072-8ISI: 000299751400011OAI: oai:DiVA.org:su-76978DiVA: diva2:532927
Note
4Available from: 2012-06-12 Created: 2012-05-28 Last updated: 2017-12-07Bibliographically approved

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