ON THE COMPUTATIONAL ARCHITECTURE OF THE NEOCORTEX .1. THE ROLE OF THE THALAMOCORTICAL LOOP
ON THE COMPUTATIONAL ARCHITECTURE OF THE NEOCORTEX .1. THE ROLE OF THE THALAMOCORTICAL LOOP
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DOI：
10.1007/bf00202389
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发表时间：
1991-01-01
影响因子：
1.9
通讯作者：
MUMFORD, D
中科院分区：
文献类型：
--
作者：
MUMFORD, D
本文提出，大脑皮质的每个区域都在丘脑的一个核的积极参与下进行计算，丘脑与丘脑在拓扑上相互联系。每个大脑皮层区域负责维护和更新生物体对世界某一特定方面的知识，从低水平的原始数据到高水平的抽象表示，并涉及解释刺激和产生行动。在这样做的过程中，它将利用从经验中学到的多个专业知识来源，创建多个往往相互冲突的假设，这些假设通过丘脑神经元的行动整合起来，然后发送回大脑皮层的标准输入层。因此，这个核心扮演着‘活跃的黑板’的角色，在上面总是展示着当前世界某一方面的最佳重建。回顾了这一理论的证据，并提出了实验测试。本文的续篇将讨论大脑皮层环路，并为它们提出完全不同的计算角色。
This paper proposes that each area of the cortex carries on its calculations with the active participation of a nucleus in the thalamus with which it is reciprocally and topographically connected. Each cortical area is responsible for maintaining and updating the organism's knowledge of a specific aspect of the world, ranging from low level raw data to high level abstract representations, and involving interpreting stimuli and generating actions. In doing this, it will draw on multiple sources of expertise, learned from experience, creating multiple, often conflicting, hypotheses which are integrated by the action of the thalamic neurons and then sent back to the standard input layer of the cortex. Thus this nucleus plays the role of an 'active blackboard' on which the current best reconstruction of some aspect of the world is always displayed. Evidence for this theory is reviewed and experimental tests are proposed. A sequel to this paper will discuss the cortico-cortical loops and propose quite different computational roles for them.