A method was designed for measuring sensory retinal rivalry. By comparing the measurements of the right and left eye. a measure of dominance of one over the other is obtained. A large number of subjects show no dominance at all. Dominance increases with age. Dominance in retinal rivalry was then correlated with each of a battery of neuropsychological and psychological scores. Retinal rivalry results are related to a type of psychological rigidity similar to perseveration.
Deryck Humphiss (Fri,) studied this question.