期刊
CORTEX
卷 119, 期 -, 页码 373-385出版社
ELSEVIER MASSON, CORP OFF
DOI: 10.1016/j.cortex.2019.07.006
关键词
Visual perception; Biological motion; Sensorimotor activation; Mu rhythm; EEG
资金
- University of Milano-Bicocca
- Ministero dell'Istruzione dell'Universita e della Ricerca, MIUR, Programmi di Ricerca Scientifica di Rilevante Interesse Nazionale PRIN 2010-2011 [2010XPMFW4_002]
Measuring changes in sensorimotor alpha band activity in nine-month-old infants we sought to understand the involvement of the sensorimotor cortex during observation of the Point-Light (PL) animation of a grasping hand. Attenuation of alpha activity was found both when the PL display moved towards the to-be-grasped object and when the object was deleted from the video. Before the beginning of the movement of the PL stimuli, only in the presence of the object evoked attenuation of sensorimotor alpha activity was documented, possibly interpreted either as movement prediction or as graspable object perception. Our main findings demonstrate that, during observation of stimuli moving with biological kinematics, the infants' sensorimotor system is activated when the pictorial information is absent or highly reduced, and independently of the presence of the goal-directed object. The possible compensatory function of the sensorimotor system during observation of highly degraded moving stimuli is discussed. (C) 2019 Elsevier Ltd. All rights reserved.
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