title: Judgments by monkeys of apparent depth in dynamic random-dot stereograms.
abstract: Young macaques discriminated apparent depths of targets embedded in dynamic random dot stereograms; a test of stereopsis. In a 'same/different' paradigm, the discrimination took longer if the pair of stimuli appeared to be in same depth plane, than when they appeared to be located in a different depth plane. The decision time was an inverse function of the disparity difference. Apparent depth discrimination performance decreased as a function of disparity, with no differences in judgments regarding crossed or uncrossed disparities.
authors.affiliation: Department of Ophthalmology and Visual Science, Medical School, University of Texas at Houston 77025, USA. crawford@nba129.med.uth.tmc.edu
authors.forename: M L
authors.initials: ML
authors.lastname: Crawford
authors.forename: G K
authors.initials: GK
authors.lastname: von Noorden
authors.forename: R S
authors.initials: RS
authors.lastname: Harwerth
authors.forename: E L
authors.initials: EL
authors.lastname: Smith
mesh_terms: D000818:Animals; D003867:Depth Perception / Q000502:physiology*; D004193:Discrimination Learning / Q000502:physiology; D004192:Discrimination, Psychological / Q000502:physiology; D008253:Macaca mulatta; D008297:Male; D010364:Pattern Recognition, Visual; D010775:Photic Stimulation; D011930:Reaction Time / Q000502:physiology; D015348:Vision, Binocular / Q000502:physiology