Colby C L, Duhamel J R
Laboratory of Sensorimotor Research, national Eye Institute, National Institutes of Health, Bethesda, MD 20892, USA.
Brain Res Cogn Brain Res. 1996 Dec;5(1-2):105-15. doi: 10.1016/s0926-6410(96)00046-8.
Parietal cortex contains multiple representations of visual space. Single neurons in area LIP encode attended locations relative to the fovea, while some VIP neurons encode stimulus location relative to the head and some MIP neurons may encode location relative to the arm. These multiple representations are tailored to guide specific kinds of actions: eye movements, head movements and arm movements, respectively. The function of parietal cortex is to signal the location of attended objects relative to the observer. It does so in order to allow the organism to act on its environment. The many different kinds of actions that can be performed are likely to be supported by these very different kinds of spatial representations.
顶叶皮层包含视觉空间的多种表征。LIP区域的单个神经元编码相对于中央凹的关注位置，而一些VIP神经元编码相对于头部的刺激位置，一些MIP神经元可能编码相对于手臂的位置。这些多种表征分别针对引导特定类型的动作进行了调整：眼球运动、头部运动和手臂运动。顶叶皮层的功能是发出被关注物体相对于观察者的位置信号。这样做是为了使生物体能够对其环境采取行动。这些非常不同类型的空间表征可能支持多种不同类型的动作。
