Neural correlates of sex differences in communicative gestures and speech comprehension: A preliminary study

Autor(es)

Manfredi, Mirella ^[1] ; Boggio, Paulo Sergio ^[2]

Afiliação do(s) autor(es)

^[1] Univ Zurich, Dept Psychol, Zurich - Switzerland

^[2] Univ Prebiteriana Mackenzie, Ctr Biol Sci & Hlth, Social & Cognit Neurosci Lab, Sao Paulo - Brazil

• Tipo de documento: Artigo Científico
• Fonte: Social Neuroscience; NOV 2021.
• Citações Web of Science: 0

Resumo

The goal of this study was to investigate whether the semantic processing of the audiovisual combination of communicative gestures with speech differs between men and women. We recorded event-related brain potentials in women and men during the presentation of communicative gestures that were either congruent or incongruent with the speech. Our results showed that incongruent gestures elicited an N400 effect over frontal sites compared to congruent ones in both groups. Moreover, the females showed an earlier N2 response to incongruent stimuli than congruent ones, while larger sustained negativity and late positivity in response to incongruent stimuli was observed only in males. These results suggest that women rapidly recognize and process audiovisual combinations of communicative gestures and speech (as early as 300 ms) whereas men analyze them at the later stages of the process. (AU)

• Processo FAPESP: 15/00553-5 - Processamento semântico da informação audiovisual em autismo: uma investigação eletrofisiológica
• Beneficiário: Mirella Manfredi
• Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado