Dawis S M, Purple R L
Biophys J. 1982 Aug;39(2):151-5. doi: 10.1016/S0006-3495(82)84502-5.
Three features appear to characterize steady-state light adaptation in vertebrate cone photoreceptors: (a) the shape of the "log intensity-response" curve at different levels of adaptation is the same, the only change with adaptation is in the position of the point on the curve about which the cones operate; (b) at high adapting intensities the operating point becomes fixed in position; (c) this fixed position is at the steepest point of the log intensity-response curve. These three features can be described by a mathematical model.
(a) 在不同适应水平下，“对数强度-反应”曲线的形状相同，适应过程中唯一的变化是视锥细胞运作的曲线上的点的位置；(b) 在高适应强度下，运作点在位置上变得固定；(c) 这个固定位置在对数强度-反应曲线的最陡点。这三个特征可用一个数学模型来描述。
