Fechner-Benham subjective colors do not induce McCollough after-effects

Spat Vis. 2006;19(2-4):161-72. doi: 10.1163/156856806776923443.

Abstract

Fechner-Benham subjective color is widely believed to be governed by local interactions in early (probably retinal) mechanisms. Here we report three lines of phenomenological evidence that suggest otherwise: subjective colors seen in spatially extended stimuli (a) are dependent on global aspects of the stimuli; (b) can become multistable in position; and (c) even after being stabilized do not support the creation of McCollough's colored after-effects--a cortically based phenomenon generally thought to be more central than Fechner-Benham color. These phenomena suggest a central locus that controls perception of subjective color, characterized by pattern dependent interactions among cortical mechanisms that draw their inputs from peripheral units.

Publication types

  • Research Support, N.I.H., Extramural
  • Research Support, Non-U.S. Gov't
  • Research Support, U.S. Gov't, Non-P.H.S.
  • Review

MeSH terms

  • Adaptation, Ocular / physiology*
  • Afterimage / physiology*
  • Color Perception / physiology*
  • Humans
  • Pattern Recognition, Visual
  • Photic Stimulation