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Vigilance Performance as a Function of Type and Latency of Response to the Signal Event,
TEXAS TECH UNIV LUBBOCK CENTER OF BIOTECHNOLOGY AND HUMAN PERFORMANCE
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Investigations of vigilance performance have typically required subjects to make overt responses to the signal events only. When an overt response is not made to the stimulus, it is assumed that the subject observed the stimulus and decided that it was not a signal. A different approach to the study of vigilance has been to require responses to both signal and non-signal events. The investigations indicate that in general, the additional response requirement does not change the characteristic performance demonstrated in vigilance tasks. False alarms made by subjects responding to both signal and non-signal events are discussed. Author
APPROVED FOR PUBLIC RELEASE