Perception of slant when perspective and stereopsis conflict: Experiments with aniseikonic lenses.

Abstract

Aniseikonic lenses change disparities such that perspective and stereoscopic slant cues are in conflict. 18 undergraduates viewing binocularly through aniseikonic lenses were required to judge the slant of each of a set of surfaces providing perspective slant cues. An adjustment method was used to record slant judgments. Reliable compromise responses between the conflicting cues were obtained although some Ss suppressed perspective cues almost completely. Response to stereoscopic cues was greatest for perspective patterns which provided ineffective slant cues in monocular vision. (PsycINFO Database Record (c) 2006 APA, all rights reserved)