Behavioral studies of binocular competition in cats.

-Cats were raised with one eye sutured and the other removed. We wished to determine whether: ( 1) the deprived eye would develop a visual field of normal extent (135’) as might be expected on the basis of the competitive advantage that this eye enjoys within the geniculocortical pathways. or (2) the deprived eye, in the absence of pattern vision, would develop only 90’ of vision. as happens in binocularly deprived cats. In these experiments the deprived eye developed only 90” of vision. This ma) represent a failure of normal geniculo-cortical development. a failure probably due to lack of a spatially patterned visual environment.