Heeger D J
NASA-Ames Research Center, Moffett Field, California.
Vis Neurosci. 1992 Aug;9(2):181-97. doi: 10.1017/s0952523800009640.
Simple cells in the striate cortex have been depicted as half-wave-rectified linear operators. Complex cells have been depicted as energy mechanisms, constructed from the squared sum of the outputs of quadrature pairs of linear operators. However, the linear/energy model falls short of a complete explanation of striate cell responses. In this paper, a modified version of the linear/energy model is presented in which striate cells mutually inhibit one another, effectively normalizing their responses with respect to stimulus contrast. This paper reviews experimental measurements of striate cell responses, and shows that the new model explains a significantly larger body of physiological data.
纹状皮层中的简单细胞被描述为半波整流线性算子。复杂细胞被描述为能量机制，由线性算子的正交对输出的平方和构建而成。然而，线性/能量模型不足以完全解释纹状细胞的反应。在本文中，提出了线性/能量模型的一个修改版本，其中纹状细胞相互抑制，有效地根据刺激对比度对其反应进行归一化。本文回顾了纹状细胞反应的实验测量，并表明新模型解释了大量得多的生理数据。
