Dissociation between the behavioural and electrophysiological effects of the face and body composite illusions

被引:14
作者
Bauser, Denise A. Soria [1 ]
Schriewer, Elisabeth [1 ]
Suchan, Boris [1 ]
机构
[1] Ruhr Univ Bochum, Dept Neuropsychol, Inst Cognit Neurosci, D-44780 Bochum, Germany
关键词
body; configural processing; composite effect; face; N170; P200; inversion; EVENT-RELATED POTENTIALS; HUMAN BRAIN; DEVELOPMENTAL PROSOPAGNOSIA; INTERSTIMULUS VARIANCE; INVERTED FACES; ERP EVIDENCE; HUMAN BODIES; PERCEPTION; RECOGNITION; INVERSION;
D O I
10.1111/bjop.12101
中图分类号
B84 [心理学];
学科分类号
04 ; 0402 ;
摘要
Several studies have reported similarities between perceptual processes underlying face and body perception, particularly emphasizing the importance of configural processes. Differences between the perception of faces and the perception of bodies were observed by means of a manipulation targeting a specific subtype of configural processing: the composite illusion. The composite face illusion describes the fact that two identical top halves of a face are perceived as being different if they are presented with different bottom parts. This effect disappears, if both halves are laterally shifted. Crucially, the effect of misalignment is not observed for bodies. This study aimed to further explore differences in the time course of face and body perception by using the composite effect. The present results replicated behavioural effects illustrating that misalignment affects the perception of faces but not bodies. Thus, face but not body perception relies on holistic processing. However, differences in the time course of the processing of both stimulus categories emerged at the N170 and P200. The pattern of the behavioural data seemed to be related to the P200. Thus, the present data indicate that holistic processes associated with the effect of misalignment might occur 200ms after stimulus onset.
引用
收藏
页码:414 / 432
页数:19
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