Coding the location of the arm by sight
Coding the location of the arm by sight
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DOI：
10.1126/science.290.5497.1782
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发表时间：
2000-12-01
期刊：
影响因子：
56.9
通讯作者：
Taylor, CSR
中科院分区：
文献类型：
--
作者：
Graziano, MSA;Cooke, DF;Taylor, CSR
灵长类大脑顶叶的第5区被认为与监测身体的姿势和运动有关。在这项研究中，猴子5区的神经元被发现编码猴子手臂的位置，而它从视图中被覆盖。同样的神经元也会对一个可见的、真实的假臂的位置做出反应。这些神经元对不真实的假臂的替代品并不敏感，并且能够区分右臂和左臂。这些神经元似乎将视觉和体感信号联合收割机结合起来，以监测肢体的结构。它们可以形成我们不断用来调整姿势和指导运动的复杂身体图式的基础。
Area 5 in the parietal Lobe of the primate brain is thought to be involved in monitoring the posture and movement of the body. In this study, neurons in monkey area 5 were found to encode the position of the monkey's arm while it was covered from view. The same neurons also responded to the position of a visible, realistic false arm. The neurons were not sensitive to the sight of unrealistic substitutes for the arm and were able to distinguish a right from a Left arm. These neurons appear to combine visual and somatosensory signals in order to monitor the configuration of the limbs. They could form the basis of the complex body schema that we constantly use to adjust posture and guide movement.