Colour but not form patterns combine between the eyes.
OBJECTIVE
A visual pattern was broken into patches, some of which were shown to one eye and the remainder of which were shown to the other eye. Our aim was to find the conditions under which the subject could combine the information given to the two eyes separately to reconstruct the original pattern.


METHODS
One green and four red patches were presented to one eye. Five patches were presented to the other eye at corresponding locations but with red substituted for green and green for red.


RESULTS
When the chromatic contrasts were appropriately adjusted, subjects saw five patches of a single colour for most of the viewing time. Intermixed horizontal and vertical gratings did not separate into coherent percepts in the same way.


CONCLUSIONS
This result indicates cooperation between the responses to colour patches presented to different eyes, a finding that may be of use in testing for normal binocular vision.
Wong
E M
EM
Department of Biomedical Sciences, University of Sydney, New South Wales, Australia.
Freeman
A W
AW
D003118:Color Perception / Q000502:physiology*; D005556:Form Perception / Q000502:physiology*; D006801:Humans; D010775:Photic Stimulation / Q000379:methods; D015348:Vision, Binocular / Q000502:physiology*