Modeling parietal-premotor interactions in primate control of grasping
Modeling parietal-premotor interactions in primate control of grasping
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DOI：
10.1016/s0893-6080(98)00047-1
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发表时间：
1998-10-01
期刊：
影响因子：
7.8
通讯作者：
Arbib, MA
中科院分区：
文献类型：
--
作者：
Fagg, AH;Arbib, MA
视觉信息是在后顶叶皮层中处理的，其假设目的是提取各种可供性来产生运动行为。术语示能表示视觉提示直接映射到与运动交互相关的参数。在本文中，我们提出了法尔斯模型的皮层参与抓握，模型的重点是前顶内区（AIP）和运动前区F5之间的相互作用。该模型代表了其他顶叶内区域的作用，与下颞叶皮层和F5协同工作，为AIP提供全方位的信息，从中可以得出启示。该模型还建议如何任务信息和其他约束可能会解决多个启示提供的行动机会。我们的模型不仅表明后顶叶皮层是一个相互作用的子系统网络，而且还表明它通过与其他大脑区域的“合作计算”模式发挥作用。最后，通过使用几个新的任务，该模型使我们能够在单个单元和群体水平上对神经放电模式做出具体的预测，这有助于我们进一步理解这些大脑区域中的信息编码。(C)1998爱思唯尔科技有限公司版权所有。
Visual information is processed in the posterior parietal cortex for the hypothesized purpose of extracting a variety of affordances for the generation of motor behavior. The term affordance is used to mean that visual cues are mapped directly to parameters that are relevant for motor interaction. In this paper, we present the FARS model of the cortical involvement in grasping, a model which focuses on the interaction between anterior intra-parietal area (AIP) and premotor area F5. The model represents the role of other intra-parietal areas, working in concert with inferotemporal cortex and F5, to provide AIP with a full range of information from which affordances may be derived. The model also suggests how task information and other constraints may resolve the action opportunities provided by multiple affordances. Our model demonstrates not only that posterior parietal cortex is a network of interacting subsystems, but also that it functions through a pattern of ''cooperative computation'' with a multiplicity of other brain regions. Finally, through the use of several novel tasks, the model allows us to make specific predictions regarding neural firing patterns at both the single unit and population levels, which aids in our further understanding of information encoding in these brain regions. (C) 1998 Elsevier Science Ltd. All rights reserved.