McCollough effect


Figure 3.11.37 from Stockman, A., & Brainard, D. H. (2009). Color vision mechanisms. In M. Bass, C. DeCusatis, J. Enoch, V. Lakshminarayanan, G. Li, C. Macdonald, V. Mahajan & E. van Stryland (Eds.), The Optical Society of America Handbook of Optics, 3rd edition, Volume III: Vision and Vision Optics. New York: McGraw Hill.


McCollough effect. The McCollough effect is a well-known orientation-contingent colour aftereffect (McCollough, 1965). View the upper coloured image for several minutes letting your gaze fall on different coloured areas for several seconds at a time. Look next at the lower monochrome image. The black and white gratings will take on the complementary hue of the adapting grating of the same orientation.


McCollough, C. (1965). Color Adaptation of Edge Detectors in the Human Visual System, Science, 149, 1115–1116.