Two movement aftereffects: evidence for luminance- and color-movement pathways.
Two movement aftereffects (MAEs) that bear closely on the issue of visual processing of color and movement have been isolated. Following adaptation with a vertical luminance stimulus a strong MAE occurred with the same stationary test stimulus oriented horizontally and also in a perfectly uniform field. Neither effect occurred following adaptation with a color equiluminance stimulus. These aftereffects have not been reported before. It is concluded that there are at least three pathways for movement, a color, a color-plus-luminance, and a luminance pathway.
Webster
W R
WR
Department of Psychology, Monash University, Clayton, Victoria, Australia.
Day
R H
RH
Cassell
J F
JF
D000221:Adaptation, Ocular / Q000502:physiology; D000360:Afterimage; D003118:Color Perception / Q000502:physiology*; D006801:Humans; D008027:Light; D009039:Motion Perception / Q000502:physiology*; D014795:Visual Pathways / Q000502:physiology*