Do ocular-dominance columns set spatial limits for hyperacuity processing?

Abstract

Two measures of visual hyperacuity processing were obtained by psychophysical experiments in two normal subjects: tilt detection threshold of a short line, and alignment sensitivity for two small squares as a function of their separation. Results obtained monocularly in two adjacent regions in the peripheral retina, viz just covering and just not covering the optic disk of the other eye, differed only insofar as might be expected by the greater eccentricity of the region homologous to the other eye's optic disk. The absence of an interlaced input to the visual cortex, therefore, does not improve visual hyperacuity nor does it extend the width of its processing zone.