From maps to form to space: touch and the body schema.
From maps to form to space: touch and the body schema.
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DOI：
10.1016/j.neuropsychologia.2009.08.017
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发表时间：
2010-02
期刊：
影响因子：
2.6
通讯作者：
Coslett HB
中科院分区：
文献类型：
--
作者：
Medina J;Coslett HB
来自患者的证据表明，初级躯体感觉表征是可塑性的，随着中枢或外周改变以及经验的变化而动态变化。此外，最近的研究还表明，改变身体姿势会导致触觉刺激的感知和定位的变化。利用脑损伤和健康受试者的行为研究以及功能成像的证据，我们提出了身体图式的传统概念应分为三个组成部分。首先是初级躯体感觉表征，其是通常在躯体位置上组织的皮肤表面的表征，并且已经显示出由于外周（使用、截肢、传入神经阻滞）或中枢（病变）修改而动态变化。第二，我们认为，从一个主要的躯体感觉的代表性的身体大小和形状（身体形式表示）的二级表示映射。最后，我们审查证据的第三组表示，编码肢体位置，并用于表示触觉刺激的位置相对于使用外部，非躯体位置的参考框架（姿势表示）的主题。
Evidence from patients has shown that primary somatosensory representations are plastic, dynamically changing in response to central or peripheral alterations, as well as experience. Furthermore, recent research has also demonstrated that altering body posture results in changes in the perceived sensation and localization of tactile stimuli. Using evidence from behavioral studies with brain damaged and healthy subjects, as well as functional imaging, we propose that the traditional concept of the body schema should be divided into three components. First are primary somatosensory representations, which are representations of the skin surface that are typically somatotopically organized, and have been shown to change dynamically due to peripheral (usage, amputation, deafferentation) or central (lesion) modifications. Second, we argue for a mapping from a primary somatosensory representation to a secondary representation of body size and shape (body form representation). Finally, we review evidence for a third set of representations that encodes limb position and is used to represent the location of tactile stimuli relative to the subject using external, non-somatotopic reference frames (postural representations).
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影响因子：
9.2
作者：
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