The Effects of Subthreshold Priming Alerts on Pilots in the USAARL TH-67 Microsim
ARMY AEROMEDICAL RESEARCH LAB FORT RUCKER AL WARFIGHTER PERFORMANCE AND HEALTH DIV
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The loss of situational awareness is implicated in many aviation accidents. Aircraft flight and systems instrumentation technology has advanced from dials and lighted-strip single-function instruments to visually- and cognitively-demanding multifunction displays MFD. Twelve rotary wing pilots participated by flying one hour flights in the USAARL TH-67 Microsim. During each flight, pilots were exposed to subthreshold and suprathreshold primes via a frequency scanner. Response times were recorded. Results indicate that pilots responded to cues during the subthreshold periods in 83 of 96 presentations 86.46. The results indicate that there was a significant association between flight experience and faster subthreshold responses 242, N 12 60.00, p .035. The objective results indicate that a simple subthreshold priming device successfully alerted pilots. The effectiveness and acceptability of employing subthreshold visual cues was supported by the responses to the subjective post-flight questionnaire. A more comprehensive study using a high-fidelity simulator is in progress.
- Flight Control and Instrumentation
- Human Factors Engineering and Man Machine Systems