University of York, Heslington, York, YO10 5DD, United Kingdom.
Università degli Study di Milano - Bicocca, Piazza dell'Ateneo Nuovo, 1, Milan, 20126, Italy; NeuroMi, Milan Center for Neuroscience, Milano, Italy.
Biol Psychol. 2021 Mar;160:108047. doi: 10.1016/j.biopsycho.2021.108047. Epub 2021 Feb 14.
Recent findings indicate that 7-months-old infants perceive and represent the sounds inherent to moving human bodies. However, it is not known whether infants integrate auditory and visual information in representations of specific human actions. To address this issue, we used ERPs to investigate infants' neural sensitivity to the correspondence between sounds and images of human actions. In a cross-modal priming paradigm, 7-months-olds were presented with the sounds generated by two types of human body movement, walking and handclapping, after watching the kinematics of those actions in either a congruent or incongruent manner. ERPs recorded from frontal, central and parietal electrodes in response to action sounds indicate that 7-months-old infants perceptually link the visual and auditory cues of human actions. However, at this age these percepts do not seem to be integrated in cognitive multimodal representations of human actions.
最近的研究结果表明，7 个月大的婴儿能够感知和表现出移动人体固有的声音。然而，目前尚不清楚婴儿是否会在特定人类动作的表示中整合听觉和视觉信息。为了解决这个问题，我们使用 ERP 来研究婴儿对人类动作的声音和图像之间对应关系的神经敏感性。在跨模态启动范式中，7 个月大的婴儿在以一致或不一致的方式观看这些动作的运动学后，会听到两种人体运动（行走和拍手）产生的声音。对动作声音做出反应的额、中央和顶叶电极的 ERP 表明，7 个月大的婴儿在感知上会将人类动作的视觉和听觉线索联系起来。然而，在这个年龄，这些感知似乎并没有整合到人类动作的认知多模态表示中。
