Graziano M S, Gross C G
Department of Psychology, Princeton University, New Jersey 08544, USA.
Curr Opin Neurobiol. 1998 Apr;8(2):195-201. doi: 10.1016/s0959-4388(98)80140-2.
Neurons in the ventral premotor cortex of the monkey encode the locations of visual, tactile, auditory and remembered stimuli. Some of these neurons encode the locations of stimuli with respect to the arm, and may be useful for guiding movements of the arm. Others encode the locations of stimuli with respect to the head, and may be useful for guiding movements of the head. We suggest that a general principle of sensory-motor integration is that the space surrounding the body is represented in body-part-centered coordinates. That is, there are multiple coordinate systems used to guide movement, each one attached to a different part of the body. This and other recent evidence from both monkeys and humans suggest that the formation of spatial maps in the brain and the guidance of limb and body movements do not proceed in separate stages but are closely integrated in both the parietal and frontal lobes.
猴子腹侧运动前区皮质中的神经元对视觉、触觉、听觉及记忆刺激的位置进行编码。其中一些神经元编码相对于手臂的刺激位置，可能有助于引导手臂运动。另一些则编码相对于头部的刺激位置，可能有助于引导头部运动。我们认为，感觉运动整合的一个普遍原则是，身体周围的空间是以身体部位为中心的坐标来表示的。也就是说，有多个坐标系用于引导运动，每个坐标系都与身体的不同部位相关联。来自猴子和人类的这一证据以及其他近期证据表明，大脑中空间图谱的形成以及肢体和身体运动的引导并非分阶段进行，而是在顶叶和额叶中紧密整合。
