Accession Number : AD0675490

Title :   ABILITY OF OBSERVERS TO ALIGN THEMSELVES WITH LINES OF VARIOUS LENGTHS AND POINT SOURCES SEPARATED BY VARIOUS DISTANCES,

Corporate Author : HUMAN SCIENCES RESEARCH INC MCLEAN VA

Personal Author(s) : Luce,Terrence S. ; Kassebaum,R. G. ; Vaughan,W. S. , Jr

Report Date : OCT 1962

Pagination or Media Count : 26

Abstract : Two laboratory experiments were conducted to assess human performance in aligning themselves with linear stimuli. In the first experiment, two point sources of illumination separated by a range of distances were used as stimuli and the subject's task was to align himself with the directional orientation of the aligned pair of 'dots'. In the second experiment, solid lines of different lengths were used as stimuli and the subject's task was to align himself with the directional orientation of the line. Both experiments were conducted in a completely darkened room with the stimuli illuminated by an ultraviolet light. (Author)

Descriptors :   (*PILOTS, AIRCRAFT LANDINGS), (*RUNWAYS, ILLUMINATION), ALIGNMENT, VISUAL SIGNALS, VISUAL ACUITY, RESPONSE(BIOLOGY), PERFORMANCE(HUMAN), TIME, PERFORMANCE(HUMAN), LIGHTING EQUIPMENT, AIRPORTS, OPTICAL EQUIPMENT, ANALYSIS OF VARIANCE, GUIDANCE, TEST EQUIPMENT, TABLES(DATA)

Subject Categories : Psychology
      Personnel Management and Labor Relations
      Optics

Distribution Statement : APPROVED FOR PUBLIC RELEASE