Identification of mirror-reversed and nonreversed facial profiles in same and opposite visual fields.

Abstract

Successively presented pairs of outline profiles in a tachistoscope either to the same or opposite visual fields and in the same or mirror-reversed orientations. Reaction times and errors of 6 male and 6 female adults were recorded for both "same" and "different" judgments. Mirror-reversed material was not processed as readily as same-oriented material. However, the decrement resulting from mirror reversal was not nearly as great when the faces went to opposite, as compared with same, hemispheres. This was considered as partial support for the theory of symmetrization of interhemispheric traces. Separate input to each hemisphere resulted in performance as good as when both stimuli went to the same one. "Same" judgments were faster as found in similar studies; a possible explanation is considered. (16 ref.) (PsycINFO Database Record (c) 2006 APA, all rights reserved)