Department of Psychology, University of Zurich, Zurich, Switzerland.
Social and Cognitive Neuroscience Laboratory, Center for Biological Science and Health, Mackenzie Presbyterian University, São Paulo, Brazil.
Soc Neurosci. 2021 Dec;16(6):653-667. doi: 10.1080/17470919.2021.1997800. Epub 2021 Nov 2.
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.
本研究旨在探究在理解言语与交际手势的视听组合时，男女之间的语义加工过程是否存在差异。我们在女性和男性被试者呈现言语的同时，记录了他们的事件相关脑电位，这些言语伴随的交际手势有的与言语一致，有的不一致。结果表明，在两组被试者中，不一致的手势比一致的手势在额区诱发出更大的 N400 效应。此外，女性对不一致的刺激比一致的刺激更早地出现 N2 反应，而只有男性对不一致的刺激表现出更大的持续负性和晚期正性。这些结果表明，女性能够快速识别和处理言语与交际手势的视听组合（早在 300ms 时），而男性则在处理过程的后期才进行分析。
