Accession Number : AD0675491

Title :   ABILITY OF OBSERVERS TO ADJUST LINEAR STIMULI TO A HORIZONTAL ORIENTATION,

Corporate Author : HUMAN SCIENCES RESEARCH INC MCLEAN VA

Personal Author(s) : Rollins,Wallace F. ; Vaughan,W. S. , Jr

Report Date : FEB 1963

Pagination or Media Count : 30

Abstract : Two laboratory experiments were conducted to assess human performance in adjusting linear stimuli to a horizontal position. In the first experiment, solid lines of various lengths were used as stimuli and, in the second experiment, the stimuli were pairs of 'dots' separated by various intervals. In both studies the subject's task was to adjust the stimulus to a horizontal position. The experiments were conducted in a completely darkened room with the stimuli illuminated by an ultraviolet light. (Author)

Descriptors :   (*PILOTS, AIRCRAFT LANDINGS), (*PERFORMANCE(HUMAN), ROLL), PILOTS, HELICOPTERS, OPTICAL EQUIPMENT, VISUAL SIGNALS, VISUAL ACUITY, PERFORMANCE(HUMAN), RESPONSE(BIOLOGY), TEST EQUIPMENT, ANALYSIS OF VARIANCE, HORIZONTAL INDICATORS, GUIDANCE, TABLES(DATA)

Subject Categories : Psychology
      Personnel Management and Labor Relations
      Optics

Distribution Statement : APPROVED FOR PUBLIC RELEASE