Abstract
Recent investigations have revealed statistically reliable relationships between signal detection by human subjects performing vigilance tasks and changes in the electrophysiologically recorded waveform of the eyeblink. Thus, this relatively simple and easy-to-obtain measure may have potential use as a predictor of impaired performance. This report describes a study in which eyeblink data were recorded on analog tape while subjects (instrument-rated pilots) “flew” a computer-generated flight plan in a General Aviation Trainer (GAT-1). Eyeblink data were reduced and scored with an adaptation of software from the Washington University Behavioral Research Laboratory. Subjects’ “flying” performance was evaluated with the Pilot Performance Evaluating System (PPES) implemented on a Digital Equipment Corporation (DEC), PDP-11/34 computer. The PPES samples each of four primary flight instruments once per second. It scores performance by generating a combined error score for each maneuver it assigns on the flight-plan display in the cockpit. The PPES/GAT-1 linkup has proved to be a valuable research tool with which to realistically evaluate stress effects and physiological correlates of flying performance in a laboratory setting. This study examined the relationships between eyeblink and flying performance scores collected during a pilot-fatigue study. Analysis of the data supports the use of computers cored eye movement measures as predictors of flying performance decrements.
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Morris, T.L. Electrooculographic indices of changes in simulated flying performance. Behavior Research Methods, Instruments, & Computers 17, 176–182 (1985). https://doi.org/10.3758/BF03214378
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DOI: https://doi.org/10.3758/BF03214378