S1体位图

Scholarpedia journal Pub Date : 2015-01-01 DOI:10.4249/scholarpedia.8574

Stuart Wilson, C. Moore

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引用次数: 11

摘要

S1体感图是指哺乳动物初级体感皮层(S1/SI)神经元反应功能组织的空间模式。这里的“地图”指的是一群神经元，它们对刺激的存在有选择性地做出反应，这些神经元从一个潜在的刺激空间中集体取样。当该空间与身体上的位置相关时，地图被称为“体位”，这样神经组织中的相邻神经元就会选择性地对身体上邻近位置的刺激做出反应。

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S1 somatotopic maps

S1 somatotopic maps refers to spatial patterns in the functional organization of neuronal responses in the mammalian primary somatosensory cortex (S1/SI). Here the term ‘map’ refers to a population of neurons that respond selectively to the presence of stimuli that collectively sample from an underlying stimulus space. Maps are referred to as ‘somatotopic’ when that space is related to locations on the body, such that adjacent neurons in the neural tissue respond selectively to stimuli presented to adjacent locations on the body.

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