Accession Number : ADA298753

Title :   The Relationship Among Eye Movements, Head Movements, and Manual Responses in a Simulated Air Traffic Control Task.

Descriptive Note : Final rept.,

Corporate Author : WASHINGTON UNIV ST LOUIS MO DEPT OF PSYCHOLOGY

Personal Author(s) : Boyer, Donna J.

PDF Url : ADA298753

Report Date : AUG 1995

Pagination or Media Count : 19

Abstract : Performance of operators in aviation systems is highly dependent on their ability to visually scan information sources, identify problematic situations, and respond appropriately. Scanning behavior has often been mentioned as a contributing factor in the performance of air traffic controllers. An investigation was initiated to identity how alterations in various gaze measures could serve as indices of changes in alertness. As part of that larger investigation, a subset of the complete data base was used to investigate the nature of changes in eye and head movements within a session, between days, and among event types. Ten subjects were chosen for their propensity to make head movements when shifting gaze from the CRT display to the keypad for a manual response. The task consisted of 44 infrequently occurring events for which manual responses were required. There were 4 types of events; Unidentified Aircraft, Loss of Altitude, Conflict (2 aircraft at the same altitude flying toward each other), No Conflict (2 aircraft at the same altitude flying away from each other). The 2-hour session was divided into 3 approximately equal time blocks. The dependent measures were: eye movement latency, head movement latency, and the eye movement following the manual response that returned the eye to the visual display (return saccades). Eye and head movement latencies were measured from the manual response. The following conclusions were made: There were no significant eye-head movement differences among the event types. The relationship between the initiation of head movements and the initiation of eye movements appears to be a stable characteristic of the individual; it was consistent between days, as well as within the session.

Descriptors :   *SCANNING, *VISUAL PERCEPTION, *AIR TRAFFIC CONTROLLERS, *VISUAL AIDS, *EYE MOVEMENTS, DATA BASES, AIRCRAFT, DISPLAY SYSTEMS, AERONAUTICS, FLIGHT, RESPONSE, INDEXES, MANUAL OPERATION, HEAD(ANATOMY), CATHODE RAY TUBE SCREENS.

Subject Categories : Anatomy and Physiology
      Personnel Management and Labor Relations
      Human Factors Engineering & Man Machine System

Distribution Statement : APPROVED FOR PUBLIC RELEASE