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document
Selective attention effects on early integration of social signals : same timing , modulated neural sources . Humans combine co-emitted social signals to predict other 's immediate intentions and prepare an adapted response . However , little is known about whether attending to only one of co-emitted social signals impacts on its combination with other signals . Here , using electroencephalography , we address selective attention effects on early combination of social signals . We manipulated three visual cues : gaze direction , emotional expression , and pointing gesture , while participants performed either emotion or gaze direction judgments . Results showed that a temporal marker of social cues integration emerges 170ms after the stimulus onset , even if the integration of the three visual cues was not required to perform the task , as only one feature at a time was task relevant . Yet in addition to common temporal regions , the relative contribution of specific neural sources of this integration changed as a function of the attended feature : integration during emotion judgments was mainly implemented in classic limbic areas but in the dorsal pathway during gaze direction judgments . Together , these findings demonstrate that co-emitted social cues are integrated as long as they are relevant to the observer , even when they are irrelevant to the ongoing task .
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Intervention_Physical
electroencephalography
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Outcome_Adverse-effects
selective attention effects
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Outcome_Other
co-emitted social cues are integrated
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Participant_Condition
Humans combine co-emitted social signals