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Clear signals or mixed messages: inter-individual emotion congruency modulates brain activity underlying affective body perception.

ABSTRACT: The neural basis of emotion perception has mostly been investigated with single face or body stimuli. However, in daily life one may also encounter affective expressions by groups, e.g. an angry mob or an exhilarated concert crowd. In what way is brain activity modulated when several individuals express similar rather than different emotions? We investigated this question using an experimental design in which we presented two stimuli simultaneously, with same or different emotional expressions. We hypothesized that, in the case of two same-emotion stimuli, brain activity would be enhanced, while in the case of two different emotions, one emotion would interfere with the effect of the other. The results showed that the simultaneous perception of different affective body expressions leads to a deactivation of the amygdala and a reduction of cortical activity. It was revealed that the processing of fearful bodies, compared with different-emotion bodies, relied more strongly on saliency and action triggering regions in inferior parietal lobe and insula, while happy bodies drove the occipito-temporal cortex more strongly. We showed that this design could be used to uncover important differences between brain networks underlying fearful and happy emotions. The enhancement of brain activity for unambiguous affective signals expressed by several people simultaneously supports adaptive behaviour in critical situations.

SUBMITTER: de Borst AW

PROVIDER: S-EPMC4967801 | biostudies-other | 2016 Aug

REPOSITORIES: biostudies-other

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Clear signals or mixed messages: inter-individual emotion congruency modulates brain activity underlying affective body perception.

de Borst A W AW de Gelder B B

Social cognitive and affective neuroscience 20160328 8

The neural basis of emotion perception has mostly been investigated with single face or body stimuli. However, in daily life one may also encounter affective expressions by groups, e.g. an angry mob or an exhilarated concert crowd. In what way is brain activity modulated when several individuals express similar rather than different emotions? We investigated this question using an experimental design in which we presented two stimuli simultaneously, with same or different emotional expressions. ...[more]

PMID: 27025242

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Dataset Information

Clear signals or mixed messages: inter-individual emotion congruency modulates brain activity underlying affective body perception.

Publications

Clear signals or mixed messages: inter-individual emotion congruency modulates brain activity underlying affective body perception.

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