Accession Number : ADA017554

Title :   EEG Theta Regulation and Radar Monitoring Performance in a Controlled Field Experiment.

Descriptive Note : Technical rept. 1 Oct 72-30 Sep 75,

Corporate Author : HUMAN FACTORS RESEARCH INC GOLETA CALIF

Personal Author(s) : O'Hanlon,James F. ; Royal,Jackson W. ; Beatty,Jackson

Report Date : SEP 1975

Pagination or Media Count : 31

Abstract : Fourteen Naval Petty Officers, rated either as Air Controller or Operations Specialist (radarman), and stationed at the USN Pacific Missile Range, Point Mugu, California, were trained to suppress parietal-occipital theta activity in EEG. Each subject then performed a 3-hour vigilance task on two occasions, once with and once without theta contingent feedback. The task was administered using real radar equipment and imagery. It consisted of observing a display to detect the occasional appearance of a simulated 'missile' contact which rapidly moved from the display periphery to its center. Missile detection latency during the third hour of the task was better with feedback, although the result was only marginally significant. Theta activity was, however, significantly lower in the feedback condition. Two subjects who alone showed the 'vigilance decrement' without feedback performed much better while suppressing theta activity when feedback was administered.

Descriptors :   *Vigilance, *Radar operators, *Air traffic controllers, *Target detection, *Electroencephalography, Bioelectricity, Feedback, Human factors engineering, Performance(Human), Psychophysiology, Monitoring, Naval personnel, Experimental data

Subject Categories : Psychology
      Anatomy and Physiology
      Human Factors Engineering & Man Machine System

Distribution Statement : APPROVED FOR PUBLIC RELEASE