Visual hemifield differences in the perception of letters and contour orientation.

In Exp. I, 10 students were required to recognize capital English letters presented 3– to the left or to the right of a fixation point. In Exp. II, 8 Ss were required to discriminate the orientation of a line presented in either the left or the right visual hemifield. In both experiments Ss displayed a significant right visual hemifield superiority, and a marked positive correlation was observed in the hemifield differences between the 2 recognition tasks. Results suggest that for certain classes of stimuli visual laterality differences may be subserved by a selective contour-tuning mechanism. (French summary) (15 ref.) (PsycINFO Database Record (c) 2010 APA, all rights reserved)