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Subject-Stimulus Distance and Localization USPHS

Baker, A. Harvey; McNeil, Ogretta Vaughn; Wapner, Seymour
Publication Year:
Report Number:
ETS Research Bulletin
Document Type:
Page Count:
Subject/Key Words:
United States Public Health Service (USPHS), Error Patterns, Kinesthetic Perception, Proximity Reader, Psychophysiology, Responses


The effect of variation of subject-stimulus distance upon under-shooting-overshooting errors in tasks involving space localization was explored. S's task was to indicate when a stimulus, which moved (in one experiment rotationally CW/CCW; in the other two linearly L to R/R to L) continuously under E's control, was aligned with the median plane of his body. In each of three independent studies (N = 16, 24, 24), it was found that magnitude of undershooting is smaller with a .6l m than with a 2.44 m distance between S and stimulus (p < .01). (18pp.)

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