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Full-Text Articles in Psychology

Upon Closer Inspection...U.S. Naval Aviation Mishaps 1977-1992, Scott A. Shappell, Douglas A. Wiegmann Apr 1994

Upon Closer Inspection...U.S. Naval Aviation Mishaps 1977-1992, Scott A. Shappell, Douglas A. Wiegmann

Publications

The U.S. Navy/Marine Corps Class A flight/flight-related mishap rate has declined markedly since 1953. However, analysis of all Class A, B, and C naval aviation mishaps between January 1977 and December 1992 reveals that mishaps attributable to human factors have declined at a slower rate than those attributable to mechanical/environmental factors. Upon closer inspection of the data, marked differences were evident between single-piloted and dual-piloted aircraft. Global trends were primarily a function of single-piloted aircraft, particularly when phase of flight and time of day that a mishap occurred are considered. Previously reported improvement in aviation safety may be biased by …


Tyrosine As A Countermeasure To Performance Decrement During Sleep Loss, Douglas A. Wiegmann, David F. Neri, Robert R. Stanny, Scott Shappell, Andrew M. Mccardie, David L. Mckay Apr 1994

Tyrosine As A Countermeasure To Performance Decrement During Sleep Loss, Douglas A. Wiegmann, David F. Neri, Robert R. Stanny, Scott Shappell, Andrew M. Mccardie, David L. Mckay

Publications

The fatigue and cognitive performance deficits associated with sleep loss and stress have motivated the search for effective nonpharmacological countermeasures. The purpose of the present study was to examine the potential behavioral effects of tyrosine, an amino-acid presursor to dopamine and norepinephrine, during an episode of continuous nighttime work involving one night of sleep loss.