Eye movement related brain responses to emotional scenes during free viewing

Show full item record



Permalink

http://hdl.handle.net/10138/41823

Citation

Simola , J , Torniainen , J , Moisala , M , Kivikangas , M & Krause , C M 2013 , ' Eye movement related brain responses to emotional scenes during free viewing ' , Frontiers in Systems Neuroscience , vol. 7 , no. Article 41 , Article 41 , pp. 1-16 . https://doi.org/10.3389/fnsys.2013.00041

Title: Eye movement related brain responses to emotional scenes during free viewing
Author: Simola, Jaana; Torniainen, Jari; Moisala, Mona; Kivikangas, Markus; Krause, Christina M.
Other contributor: University of Helsinki, Behavioural Sciences
University of Helsinki, Behavioural Sciences
University of Helsinki, Behavioural Sciences
University of Helsinki, Behavioural Sciences
Date: 2013-08-20
Language: eng
Number of pages: 16
Belongs to series: Frontiers in Systems Neuroscience
ISSN: 1662-5137
DOI: https://doi.org/10.3389/fnsys.2013.00041
URI: http://hdl.handle.net/10138/41823
Abstract: Emotional stimuli are preferentially processed over neutral stimuli. Previous studies, however, disagree on whether emotional stimuli capture attention preattentively or whether the processing advantage is dependent on allocation of attention. The present study investigated attention and emotion processes by measuring brain responses related to eye movement events while 11 participants viewed images selected from the International Affective Picture System (IAPS). Brain responses to emotional stimuli were compared between serial and parallel presentation. An “emotional” set included one image with high positive or negative valence among neutral images. A “neutral” set comprised four neutral images. The participants were asked to indicate which picture—if any—was emotional and to rate that picture on valence and arousal. In the serial condition, the event-related potentials (ERPs) were time-locked to the stimulus onset. In the parallel condition, the ERPs were time-locked to the first eye entry on an image. The eye movement results showed facilitated processing of emotional, especially unpleasant information. The EEG results in both presentation conditions showed that the LPP (“late positive potential”) amplitudes at 400–500 ms were enlarged for the unpleasant and pleasant pictures as compared to neutral pictures. Moreover, the unpleasant scenes elicited stronger responses than pleasant scenes. The ERP results did not support parafoveal emotional processing, although the eye movement results suggested faster attention capture by emotional stimuli. Our findings, thus, suggested that emotional processing depends on overt attentional resources engaged in the processing of emotional content. The results also indicate that brain responses to emotional images can be analyzed time-locked to eye movement events, although the response amplitudes were larger during serial presentation.
Subject: 515 Psychology
ATTENTION
EMOTION
EEG
eye movements
co-registration
fixation-related potentials
free viewing
late positive potential LPP
Rights:


Files in this item

Total number of downloads: Loading...

Files Size Format View
Simola_2013_Frontiers.pdf 3.711Mb PDF View/Open

This item appears in the following Collection(s)

Show full item record