ISSN 0371-0874, CN 31-1352/Q

过刊浏览

初级视觉皮层“简单”与“复杂”神经元动力学的计算建模

陶乐天*, 蔡申瓯

北京大学生命科学学院生物信息中心,蛋白质工程及植物基因工程国家重点实验室,北京 100871;上海交通大学自然科学研究院和数学系,上海 200240;美国纽约大学库朗数学研究所和神经科学中心,纽约 NY 10012

摘要

本文回顾了我们在哺乳动物视觉皮层的建模工作。利用初级视觉皮层的大规模神经元网络模型,我们解释了初级视觉皮层里“简单”与“复杂”神经元现象的网络机制。所谓的“简单”细胞对视觉刺激的反应近似线性,而“复杂”细胞对视觉刺激是非线性的。我们的模型成功地再现了简单和复杂细胞分布的实验数据。

关键词: 初级视皮层; 数学模型; 神经元网络; 视觉信号空间总和; 朝向选择性; 非线性动力学

分类号:O242.1;O29;Q189

Computational modeling of the dynamics of simple and complex cells in primary visual cortex

TAO Louis*, CAI David

Center for Bioinformatics, National Laboratory of Protein Engineering and Plant Genetics Engineering, College of Life Sciences, Peking University, Beijing 100871, China; Institute of Natural Sciences &

Abstract

We review our work on computational modeling of the mammalian visual cortex. In particular, we explain the network mechanism of how simple and complex cells arise in a large scale neuronal network model of primary visual cortex. The simple cells are so-called because they respond approximately linearly to visual stimulus, whereas the complex cells exhibit nonlinear response to visual stimulation. Our model reproduces qualitatively the experimentally observed distributions of simple and complex cells.

Key words: primary visual cortex; mathematical modeling; neuronal networks; spatial summation; orientation selectivity; nonlinear dynamics

收稿日期:  录用日期:

通讯作者:陶乐天  E-mail: taolt@cbi.pku.edu.cn

引用本文:

陶乐天, 蔡申瓯. 初级视觉皮层“简单”与“复杂”神经元动力学的计算建模[J]. 生理学报 2011; 63 (5): 401-411.

TAO Louis, CAI David. Computational modeling of the dynamics of simple and complex cells in primary visual cortex. Acta Physiol Sin 2011; 63 (5): 401-411 (in Chinese with English abstract).