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题名:	A Mechanism for Spatial Perception on Human Skin
作者:	鄭會穎 Cheng, Tony Fardo, Francesca Beck, Brianna Haggard, Patrick *
贡献者:	哲學系
关键词:	Path integration;Skin Localisation;Space perception;Touch;Receptive fields
日期:	2018-09
上传时间:	2019-12-02 15:56:58 (UTC+8)
摘要:	Our perception of where touch occurs on our skin shapes our interactions with the world. Most accounts of cutaneous localisation emphasise spatial transformations from a skin-based reference frame into body-centred and external egocentric coordinates. We investigated another possible method of tactile localisation based on an intrinsic perception of ‘skin space’. The arrangement of cutaneous receptive fields (RFs) could allow one to track a stimulus as it moves across the skin, similarly to the way animals navigate using path integration. We applied curved tactile motions to the hands of human volunteers. Participants identified the location midway between the start and end points of each motion path. Their bisection judgements were systematically biased towards the integrated motion path, consistent with the characteristic inward error that occurs in navigation by path integration. We thus showed that integration of continuous sensory inputs across several tactile RFs provides an intrinsic mechanism for spatial perception.
關聯:	Cognition, Vol.178, pp.236-243
数据类型:	article
DOI 連結:	https://doi.org/10.1016/j.cognition.2018.05.024
DOI:	10.1016/j.cognition.2018.05.024
显示于类别:	[哲學系] 期刊論文

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