Accession Number : AD0770297

Title :   Target Vigilance Effects from Visual Obstructions Imposed by Helmet-Mounted Display Hardware.

Descriptive Note : Final rept.,

Corporate Author : AEROSPACE MEDICAL RESEARCH LAB WRIGHT-PATTERSON AFB OHIO

Personal Author(s) : Chason,L. Ralph ; Schwank,Jock C. H. ; Hughes,Richard L.

Report Date : AUG 1973

Pagination or Media Count : 42

Abstract : The response times to and correct identification of target stimuli superimposed on panoramic scenes were measured under conditions of restriction and nonrestriction of peripheral vision. Twenty-five male subjects were assigned randomly to experimental conditions and required to search for target stimuli under simulated visual flight conditions of varying color and terrain features. A simulated helmet-mounted device was used to restrict peripheral vision. The data are viewed as supporting the position that the intrusion of a helmet-mounted device into a pilot's field of view can result in a significant decrement to his target vigilance performance. Possible implications in human engineering design and subsequent research efforts are discussed. (Modified author abstract)

Descriptors :   *Vigilance, *Intrusion, *Performance(Human), *Target recognition, Attrition, Interference, Flight simulation, Display systems, Helmets, Response, Reaction time

Subject Categories : Psychology

Distribution Statement : APPROVED FOR PUBLIC RELEASE