Siegel S, Allan L G, Roberts L, Eissenberg T
McMaster University, Hamilton, Ontario, Canada.
Percept Psychophys. 1990 Oct;48(4):307-12. doi: 10.3758/bf03206681.
On the basis of a conditioning analysis of the orientation-contingent color aftereffect (McCollough effect, ME), orientation stimuli become associated with simultaneously presented chromatic stimuli. This account suggests that decreasing the contingency between the grid orientation and color should decrease the strength of the aftereffect. Results of previous research indicate that decreasing the temporal contingency (by presenting homogeneous chromatic stimuli between presentations of chromatic grids) does not decrease the ME. However, it has been suggested that the appropriate contingency-degradation procedure would involve decreasing spatial (rather than temporal) contingency. That is, the illusion should be attenuated by extending the color beyond the confines of the grid. Contrary to this hypothesis, the results of the present experiments provide no evidence that decreasing the spatial contingency between grid and color decreases the ME; rather, the aftereffect is increased by such a manipulation.
基于对方向依存性颜色后效（麦卡洛效应，ME）的条件分析，方向刺激与同时呈现的颜色刺激建立了关联。这一观点表明，降低网格方向与颜色之间的依存性应会降低后效的强度。先前的研究结果表明，降低时间依存性（通过在彩色网格呈现之间呈现均匀的颜色刺激）并不会降低麦卡洛效应。然而，有人提出，适当的依存性降低程序应涉及降低空间（而非时间）依存性。也就是说，通过将颜色扩展到网格范围之外，这种错觉应该会减弱。与这一假设相反，本实验的结果并未提供证据表明降低网格与颜色之间的空间依存性会降低麦卡洛效应；相反，这种操作会增强后效。
