Grunfeld E D, Spitzer H
Department of Biomedical Engineering, Faculty of Engineering, Tel Aviv University, Israel.
Vision Res. 1995 Jan;35(2):275-83. doi: 10.1016/0042-6989(94)00119-7.
We propose a mathematical model for the generation of the subjective colour phenomenon through Benham's disk stimuli. The model relates to the spatial and temporal properties of three colour coded retinal ganglion cells: L+/M-, M+/L- and S-/(L+M)+ [or (L+M)-/S+]. It is suggested that the phenomenon is based on both the opponent mechanisms in the cells' receptive fields, and the "rebound response"--a common cell response to turning off of an inhibitory stimulus (nonlinear cell dynamics). A physiological mechanism is suggested for this response. The integrated cell responses to Benham disk-stimuli create imbalances between the colour pathways that are interpreted as actual colours. The model also predicts the shift in the perceived colours when the disk rotation rate is varied.
我们提出了一个通过贝汉姆盘刺激产生主观颜色现象的数学模型。该模型涉及三种颜色编码的视网膜神经节细胞的空间和时间特性：L+/M-、M+/L-和S-/(L+M)+ [或(L+M)-/S+]。有人认为，这种现象既基于细胞感受野中的对立机制，也基于“反弹反应”——细胞对抑制性刺激关闭的常见反应（非线性细胞动力学）。针对这种反应提出了一种生理机制。细胞对贝汉姆盘刺激的综合反应在颜色通道之间产生不平衡，这些不平衡被解释为实际颜色。该模型还预测了圆盘旋转速率变化时感知颜色的变化。
