Accession Number : AD0769754

Title :   The Relationship of Eye Behavior, Cardiac Activity and Electromyographic Responses to Subjective Reports of Mental Fatigue and Performance on a Doppler Identification Task.

Descriptive Note : Master's thesis,

Corporate Author : NAVAL POSTGRADUATE SCHOOL MONTEREY CA

Personal Author(s) : Sherman, Marshall Robert

Report Date : SEP 1973

Pagination or Media Count : 44

Abstract : The research investigated relationships between subjective fatigue, performance, and four physiological parameters: sinus arrhythmia, pupil behavior, blink rate, and tension of the neck muscles. Fatigue was induced by a doppler recognition task and rigid body posture. Performance was measured as the proportion of correct doppler identifications. There was no detection of a performance change during the two and one half-hour experimental sessions. Sinus arrhythmia and eyelid blink rate were also found to remain unchanged. An alteration was found in the measures of neck muscle tension levels, subjective fatigue, and the average pupil diameter. Subjective ratings of fatigue were found to be highly correlated with time-on-task and the electromyographic response of certain neck muscles. Polynomial regression indicated a significant linear relationship between the subjective ratings and the tension measured. (Author)

Descriptors :   *FATIGUE, *STRESSES, RESPONSE(BIOLOGY), PERFORMANCE(HUMAN), EYE, HEART, ELECTROMYOGRAPHY, MUSCLES, THESES, NECK(ANATOMY), HUMANS, RIGIDITY.

Subject Categories : Psychology
      Anatomy and Physiology

Distribution Statement : APPROVED FOR PUBLIC RELEASE