Accession Number : AD0736955

Title :   Factors Affecting Depth Perception.

Descriptive Note : Annual rept.,

Corporate Author : MASSACHUSETTS INST OF TECH CAMBRIDGE

Personal Author(s) : Richards,Whitman A.

Report Date : DEC 1971

Pagination or Media Count : 18

Abstract : The report describes ongoing work on certain factors that affect depth perception. Of particular interest is that a sizeable portion (30%) of the population are unable to make full use of the binocular parallax cue for judging the distance of objects. These individuals are said to be stereoanomalous. Work over the past year has shown that these individuals localize objects in space in a manner different from other individuals who possess the full stereoscopic capability. A considerable effort has been spent in developing a simple, portable test for diagnosing the presence of stereoanomalies. Tests based upon random dot patterns appear to be satisfactory. One important distinction that emerges concerns two separate systems for stereopsis in the normal observer: one sensitive to positional changes in depth, and a second parallel system that requires object motion.

Descriptors :   (*SPACE PERCEPTION, SCIENTIFIC RESEARCH), FACTOR ANALYSIS, VISUAL PERCEPTION, STATISTICAL DATA, TEST CONSTRUCTION(PSYCHOLOGY), PERFORMANCE(HUMAN), PERFORMANCE(HUMAN), ANOMALIES

Subject Categories : Anatomy and Physiology

Distribution Statement : APPROVED FOR PUBLIC RELEASE