Evoked and induced power oscillations linked to audiovisual integration of affect

•Power Oscillations linked to audiovisual integration of affect were examined.•Early evoked sub-additive theta power oscillations were found.•Sustained induced supra-additive delta and beta activities were found.•Common oscillations exist across different affective content. Our affective experiences...

Full description

Saved in:
Bibliographic Details
Published in:Biological psychology 2021-01, Vol.158, p.108006-108006, Article 108006
Main Authors: Gao, Chuanji, Xie, Wanze, Green, Jessica J., Wedell, Douglas H., Jia, Xi, Guo, Chunyan, Shinkareva, Svetlana V.
Format: Article
Language:English
Subjects:
Acoustic Stimulation
Audiovisual integration
Auditory Perception
EEG
Electroencephalography
Emotion
Humans
Multisensory
Oscillation
Photic Stimulation
Visual Perception
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:•Power Oscillations linked to audiovisual integration of affect were examined.•Early evoked sub-additive theta power oscillations were found.•Sustained induced supra-additive delta and beta activities were found.•Common oscillations exist across different affective content. Our affective experiences are influenced by combined multisensory information. Although the enhanced effects of congruent audiovisual information on our affective experiences have been well documented, the role of neural oscillations in the audiovisual integration of affective signals remains unclear. First, it is unclear whether oscillatory activity changes as a function of valence. Second, the function of phase-locked and non-phase-locked power changes in audiovisual integration of affect has not yet been clearly distinguished. To fill this gap, the present study performed time-frequency analyses on EEG data acquired while participants perceived positive, neutral and negative naturalistic video and music clips. A comparison between the congruent audiovisual condition and the sum of unimodal conditions was used to identify supra-additive (Audiovisual > Visual + Auditory) or sub-additive (Audiovisual < Visual + Auditory) integration effects. The results showed that early evoked sub-additive theta and sustained induced supra-additive delta and beta activities are linked to audiovisual integration of affect regardless of affective content.
ISSN:0301-0511
1873-6246
DOI:10.1016/j.biopsycho.2020.108006