Chromatic rod-cone interaction during dark adaptation.
Chromatic rod-cone interaction in mesopic vision was investigated by measuring chromaticity coordinates of spectral lights 3 deg extrafoveally during long-term dark adaptation, under conditions where the eye was chromatically adapted. It was concluded that (a) the chromaticity shift obtained between the cone-plateau period and the dark-adapted state is due, at least under some conditions, to rod signals elicited by the test stimulus, (b) the chromaticity points of cone-mediated colors may change in different directions in the chromaticity diagram as an effect of the rod intrusion, (c) cone-cone and rod-cone color-mixture processing may, at least under some conditions, be different, and (d) chroma-related processes of rods and cones tend to suppress each other, with rods dominating at low and cones at high mesopic intensities.
Stabell
B
B
Department of Psychology, University of Oslo, Norway.
Stabell
U
U
D003116:Color; D003118:Color Perception / Q000502:physiology*; D003623:Dark Adaptation / Q000502:physiology*; D006801:Humans; D010775:Photic Stimulation; D017949:Retinal Cone Photoreceptor Cells / Q000502:physiology*; D017948:Retinal Rod Photoreceptor Cells / Q000502:physiology*