The involvement of the two hemispheres in the reaction time to central and peripheral visual stimuli

Central and peripheral visual stimuli were presented randomly to subjects in three situations: (a) two eyes open; (b) only left eye open and (c) right eye open. The main finding is slower reaction time to right peripheral visual stimuli observed in one eye. No correlation was found between reaction time and scores on the Type A behavior test. The role of the right hemisphere in mediating this effect is discussed.