Superiority of right visual half-fields in right-handers for recall of digits presented at varying rates

Abstract

Right-handers exhibit a consistent superiority of the right visual half-field for recall of digits; this superiority may reflect the more direct connections between the right visual half field and the speech areas of the left hemisphere. Seven digits were presented in each trial, with four digits at the point of fixation and three in either the left or right visual half-field. The first six digits were presented in pairs, with one digit at fixation and one in the half-field, followed by one additional digit at fixation. The greatest asymmetry occured at the faster presentation rates and for right-handers without family history of sinistrality.