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Alternative TitleHand Proximity Effect: Content, Influencing Factors andNeural Mechanisms
王小桃1; 杜峰2,3; 董圣鸿1
First Author王小桃
Contribution Rank1


Other Abstract

Abstract Recent studies have shown that human visual perception and attentional selection near the hands are substantially altered compared with the stimuli far from the hands. For example, visual stimuli near the hands are detected more quickly, discriminated more accurately and processed more thoroughly compared with those far from the hands. This cluster effect of hand-stimulus proximity on vision is termed the "hand proximity effect (HPE)". The research on the HPE has flourished in the past ten years. The purpose of this essay is to provide a systematic review of the existing body of literature. Research repeatedly found that placing hands near stimuli enhanced perceptual processing and spatial working memory in people with impaired perception and object-based perception. However, the results of hand-stimulus proximity's effect on executive control were inconsistent. Moreover, placing hands near the stimuli facilitated processing information relevant to grasp affordances. Thus, the affordance for specific actions moderated the HPE. The ownership of hand was another moderator. It was suggested that participants' own hand but not other's hand or fake hand near to the stimuli could affect visual processing. If the fake hand was somatically and visually similar to a real hand, however, putting fake hand near the stimuli could affect visual processing. After having cooperated to accomplish a task, other’s hand near the stimuli could induce HPE as well. Consistent with the embodied cognition theory, the attention theories proposed action-based explanations of HPE: objects near the hands are candidates for action, thus they received enhanced processing. There were two attention theories for HPE. The attentional priority theory suggested that hand-stimulus proximity affected early visual processing, whereas the delayed disengagement theory suggested that hand-stimulus proximity affected later visual processing. However, a recent study that used event-related potentials found that the effect of hand-stimulus proximity on the visual processing ranged from early sensory processing to later cognitive processing. Two distinct theoretical accounts explained the neural mechanisms of HPE. The bimodal visuo-tactile neurons account suggested that stimuli in peri-hand space might activate the bimodal visuo-tactile neurons. Thus, the visual targets near the hand might be more salient than targets far from the hand because there were additional neural substrates representing the objects in peri-hand space. However, the trade-off of two visual pathways account suggested objects near the hand induced a bias toward the action-oriented magnocellular visual pathway. Conversely, objects far from the hand biased vision toward the perception-oriented parvocellular visual pathway. Future research should focus on the neural mechanisms, and the practical applications of the HPE. Moreover, the modulation of actionaffordance, and the modulation of interpersonal and social factors on HPE may be promising in the future studies.

Keyword手近效应 注意 具身认知 视触双通道神经元 视觉通路
Source Publication心理科学
Indexed ByCSCD
Citation statistics
Document Type期刊论文
Corresponding Author杜峰
Corresponding Author AffilicationInstitute of Psychology, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
王小桃,杜峰,董圣鸿. 手近效应:研究内容、影响因素与神经机制[J]. 心理科学,2018,41(01):45-50.
APA 王小桃,杜峰,&董圣鸿.(2018).手近效应:研究内容、影响因素与神经机制.心理科学,41(01),45-50.
MLA 王小桃,et al."手近效应:研究内容、影响因素与神经机制".心理科学 41.01(2018):45-50.
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