Receptive field map development by anti-Hebbian learning
Receptive field map development by anti-Hebbian learning
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DOI：
10.1016/s0893-6080(97)00003-8
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发表时间：
1997-08-01
期刊：
影响因子：
7.8
通讯作者：
Moran, F
中科院分区：
文献类型：
--
作者：
Andrade, MA;Moran, F
对定向视觉刺激有选择性的神经元参与高等哺乳动物视觉信号处理的早期步骤。高度有序的神经连接对这种选择性做出了反应。建立这种连接所需的信息太大，无法包含在基因组中。此外，神经生理学实验表明，发育中的视觉神经系统的一小部分改变会影响整个系统的正常发育。能够从一般属性产生局部秩序的自组织过程已经被认为是这些发展阶段的驱动力。为了模拟这些自组织过程，我们研究了一个基于简单组织规则的两层神经网络，这些规则包括(1)神经信号在同一层中的扩散，(2)Hebbian和反Hebbian学习，以及(3)每个神经元连接的个体限制。我们模拟了在地图中组织的对方向和大小有选择性的神经元的发育，强调了反Hebbian学习对正常神经视觉系统发育的重要性。(C)1997年爱思唯尔科学有限公司。
Neurons selective to oriented visual stimuli participate in the early steps of visual signal processes in higher mammals. A highly ordered neural connectivity responds to such a selectivity. The information necessary to establish this connectivity is too large to be contained in a genome. Moreover, neurophysiological experiments show that the alteration of small parts of the the developing visual neural system affects the normal development of the whole system. Self-organizing processes able to produce local order from general properties have already been proposed as the driving force of these development stages. In order to model these self-organizing processes we study a two layer neural network based on simple organizational rules such as (1) diffusion of neural signal in the same layer, (2) Hebbian and anti-Hebbian learning, and (3) individual restrictions to the growth of each neuronal connection. We simulate the development of neurons selective to orientation and size organized in a map, underscoring the importance of anti-Hebbian learning for normal neural visual system development. (C) 1997 Elsevier Science Ltd.