Integration of target and body-part information in the premotor cortex when planning action
Integration of target and body-part information in the premotor cortex when planning action
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DOI：
10.1038/35044075
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发表时间：
2000-11-23
期刊：
影响因子：
64.8
通讯作者：
Tanji, J
中科院分区：
文献类型：
--
作者：
Hoshi, E;Tanji, J
要计划一个行动，我们必须首先选择一个要行动的对象和身体的一部分（或多个部分）来实现我们的意图。为了规划伸手的运动任务，我们指定了要伸手的目标和要使用的手臂。在计划和准备运动任务的过程中，在制定运动程序以产生适当的肢体运动之前，必须整合关于运动目标和要使用的手臂的信息。灵长类动物大脑皮层中的运动前区可能是大脑中整合这两组信息的结构之一（1-5）。背侧前运动皮层的外侧部分接收视觉和体感输入（6-8），我们在这里展示了这个区域的神经元收集关于目标和身体部位的信息，而随后的活动指定了计划的动作。
To plan an action, we must first select an object to act on and the body part (or parts) to use to accomplish our intention. To plan the motor task of reaching, we specify both the target to reach for and the arm to use. In the process of planning and preparing a motor task, information about the motor target and the arm to use must be integrated before a motor program can be formulated to generate the appropriate limb movement. One of the structures in the brain that is probably involved in integrating these two sets of information is the premotor area in the cerebral cortex of primates(1-5). The lateral sector of the dorsal premotor cortex is known to receive both visual and somatosensory input(6-8), and we show here that neurons in this area gather information about both the target and the body part, while subsequent activity specifies the planned action.