Titre du document / Document title

Early modulation of visual perception by emotional arousal: Evidence from steady-state visual evoked brain potentials

Auteur(s) / Author(s)

KEIL Andreas ⁽¹⁾ ; GRUBER Thomas ⁽²⁾ ; MÜLLER Matthias M. ⁽²⁾ ; MORATTI Stephan ⁽¹⁾ ; STOLAROVA Margarita ⁽¹⁾ ; BRADLEY Margaret M. ⁽³⁾ ; LANG Peter J. ⁽³⁾ ;

Affiliation(s) du ou des auteurs / Author(s) Affiliation(s)

⁽¹⁾ University of Konstanz, Konstanz, ALLEMAGNE
⁽²⁾ University of Liveroool, Liverpool, England, ROYAUME-UNI
⁽³⁾ University of Florida, Gainesville, Florida, ETATS-UNIS

Résumé / Abstract

Allocation of processing resources to emotional picture stimuli was examined using steady-state visual evoked brain potentials (ssVEPs). Participants viewed a set of 60 colored affective pictures from the International Affective Picture System, presented in a flickering mode at 10 Hz in order to elicit ssVEPs. Phase and amplitude of the 10-Hz ssVEP were examined for six picture categories: threat and mutilation (unpleasant), families and erotica (pleasant), and household objects and persons (neutral). Self-reported affective arousal and hedonic valence of the picture stimuli were assessed by means of subjective ratings. Viewing affectively arousing (unpleasant and pleasant) pictures was associated with enhanced ssVEP amplitude at parieto-occipital recording sites, as compared with neutral stimuli. Phase information suggested increased coactivation of right occipitotemporal and frontotemporal sources during processing of affectively arousing stimuli. These findings are consistent with reentrant modulation of early visual processing by distributed networks including subcortical and neocortical structures according to a stimulus's motivational relevance.

Revue / Journal Title

Cognitive, affective & behavioral neuroscience   ISSN 1530-7026 

Source / Source

2003, vol. 3, n^o3, pp. 195-206 [12 page(s) (article)] (1 p.1/4)

Langue / Language

Anglais

Editeur / Publisher

Psychonomic Society, Austin, TX, ETATS-UNIS  (2001) (Revue)

Mots-clés anglais / English Keywords

Electrophysiology ; Central nervous system ; Human ; Cognition ; Motivation ; Arousal ; Emotion emotionality ; Vision ; Encephalon ; Visual evoked potential ;

Mots-clés français / French Keywords

Electrophysiologie ; Système nerveux central ; Homme ; Cognition ; Motivation ; Eveil ; Emotion émotivité ; Vision ; Encéphale ; Potentiel évoqué visuel ;

Mots-clés espagnols / Spanish Keywords

Electrofisiología ; Sistema nervioso central ; Hombre ; Cognición ; Motivación ; Despertar ; Emoción emotividad ; Visión ; Encéfalo ; Potencial evocado visual ;

Localisation / Location

INIST-CNRS, Cote INIST : 13280 A, 35400011869113.0040