Sensory monitoring of prehension in the parietal lobe: a study using digital video
Sensory monitoring of prehension in the parietal lobe: a study using digital video
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DOI：
10.1016/s0166-4328(02)00167-5
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发表时间：
2002-09-20
影响因子：
2.7
通讯作者：
Babu, KS
中科院分区：
文献类型：
--
作者：
Gardner, EP;Debowy, DJ;Babu, KS
数字视频提供了技术工具，用于监测抓握过程中的手部运动学，并将运动行为与同时记录的猴子顶叶皮质神经元放电模式相关联。在任务中的手的行动的恒定性，使我们能够获得群体反应的神经元在S-I和后顶叶皮层（PPC）从连续的单单位记录。PPC神经元的活动先于S-I神经元的活动，并且对特定的物体具有形状选择性，提示PPC神经元在运动规划中起重要作用。在S-I中发生了手-物体相互作用的详细感觉监测，其中不同的神经元组对特定的行为做出反应，例如抓握，举起，握住或释放物体。(C)2002 Elsevier Science B. V.保留所有权利。
Digital video provides technological tools for monitoring hand kinematics during prehension, and for correlating motor behavior with the simultaneously recorded firing patterns of neurons in parietal cortex of monkeys. The constancy of the hand action in the task allowed us to derive population responses of neurons in both S-I and posterior parietal cortex (PPC) from serial single unit recordings. Activity of PPC neurons preceded that in S-I, and was often shape-selective for particular objects, suggesting that they play an important role in motor planning of prehension. Detailed sensory monitoring of hand-object interactions occurred in S-I, where distinct groups of neurons responded to specific behaviors such as grasping, lifting, holding or releasing objects. (C) 2002 Elsevier Science B.V. All rights reserved.