Accession Number : AD0679173

Title :   EXTRAHOROPTERAL DISTANCE PERCEPTION IN TRACKING PERFORMANCE.

Descriptive Note : Final rept.,

Corporate Author : INDIANA UNIV BLOOMINGTON DIV OF OPTOMETRY

Personal Author(s) : Reading,Rogers W.

Report Date : 01 SEP 1968

Pagination or Media Count : 104

Abstract : Extrahoropteral stereopsis is the binocular perception of depth that arises from objects located at relatively large distances from the horopter. The study is concerned with the question of whether extrahoropteral stereopsis clues of disparity magnitudes comparable to those prevailing in common vehicle operating conditions can provide feedback useful in compensating for interference in a tracking task. The results, while inconsistent, suggest only a slight apparent superiority for conditions which allow judgments to be based on extrahoropteral stereopsis. Supplementary investigations on the same subjects indicate that feedback from other clues may have been as good as or better than that provided by extrahoropteral stereopsis and that estimations of the actual distances of objects located extrahoropterally showed consistent errors sufficient in magnitude to have rendered extrahoropteral clues ineffective. (Author)

Descriptors :   (*SPACE PERCEPTION, *TRACKING), VISION, PERFORMANCE(HUMAN), FEEDBACK, VEHICLES, OPERATORS(PERSONNEL)

Subject Categories : Psychology

Distribution Statement : APPROVED FOR PUBLIC RELEASE