Complex movements evoked by microstimulation of the ventral intraparietal area
Complex movements evoked by microstimulation of the ventral intraparietal area
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DOI：
10.1073/pnas.1031751100
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发表时间：
2003-05-13
影响因子：
11.1
通讯作者：
Graziano, MSA
中科院分区：
文献类型：
--
作者：
Cooke, DF;Taylor, CSR;Graziano, MSA
猕猴大脑腹侧顶内区（VIP）的大多数神经元对视觉和触觉刺激都有反应。触觉感受野通常位于面部，视觉感受野通常在空间上与触觉感受野相对应。在这项研究中，电微刺激VIP，而不是周围组织，引起了一系列的动作，包括闭眼，面部鬼脸，头部退缩，肩膀抬高，以及手向头部或肩膀旁边的空间移动。向猴子的脸颊吹气也会引起类似的动作。一种解释是，VIP有助于由头部或头部附近的刺激引发的防御运动。
Most neurons in the ventral intraparietal area (VIP) of the macaque brain respond to both visual and tactile stimuli. The tactile receptive field is usually on the face, and the visual receptive field usually corresponds spatially to the tactile receptive field. In this study, electrical microstimulation of VIP, but not of surrounding tissue, caused a constellation of movements including eye closure, facial grimacing, head withdrawal, elevation of the shoulder, and movements of the hand to the space beside the head or shoulder. A similar set of movements was evoked by an air puff to the monkey's cheek. One interpretation is that VIP contributes to defensive movements triggered by stimuli on or near the head.