Error-correcting Perceptual Mechanisms

Abstract

The metric of the visual field is generally accurate but subject to changes dependent on stimulation. It is suggested that these changes indicate how the metric develops initially, and that the features of the visual signal which control the metric are the distributions of contours and of contour-curvatures over the field. These distributions are genetically prescribed for the organism; they correspond well with the distribution of these features in patterns derived optically from the environment; hence visual shapes and physical shapes are maintained in correspondence. Further short discussions concern physiological hypotheses and the extension of the above to senses other than vision.