FROM BASIC NETWORK PRINCIPLES TO NEURAL ARCHITECTURE - EMERGENCE OF ORIENTATION COLUMNS
FROM BASIC NETWORK PRINCIPLES TO NEURAL ARCHITECTURE - EMERGENCE OF ORIENTATION COLUMNS
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DOI：
10.1073/pnas.83.22.8779
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发表时间：
1986-11-01
影响因子：
11.1
通讯作者：
LINSKER, R
中科院分区：
文献类型：
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作者：
LINSKER, R
方向选择性细胞（Orientation-selective cells）是哺乳动物视皮层结构的一个显著特征。在本系列的前一篇论文中，我证明了这样的细胞在一个简单的多层网络的发展过程中自发出现，该网络具有局部但最初随机的前馈连接，根据一个简单的发展规则（Hebb类型），一次一层地成熟。在本文中，我表明，在发展方向的细胞之间的横向连接的存在下，这些细胞自组织成带状图案的细胞类似的方向。这些模式类似于哺乳动物视觉皮层中发现的“方向柱”。在任何阶段，系统都没有特定的方向偏好，没有一个基本的发展规则是特定于视觉处理的，即使在没有视觉输入的情况下，结果也会出现（正如在猕猴中观察到的那样）。
Orientation-selective cells.sbd.cells that are selectively responsive to bars and edges at particular orientations.sbd.are a salient feature of the architecture of mammalian visual cortex. In the previous paper of this series, I showed that such cells emerge spontaneously during the development of a simple multilayered network having local but initially random feedforward connections that mature, one layer at a time, according to a simple development rule (of Hebb type). In this paper, I show that, in the presence of lateral connections between developing orientation cells, these cells self-organize into banded patterns of cells of similar orientation. These patterns are similar to the "orientation columns" found in mammalian visual cortex. No orientation preference is specified to the system at any stage, none of the basic developmental rules is specific to visual processing, and the results emerge even in the absence of visual input to the system (as has been observed in macaque monkey).