Stephen R. Dixon

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OBJECTIVE Two experiments were conducted in which participants navigated a simulated unmanned aerial vehicle (UAV) through a series of mission legs while searching for targets and monitoring system parameters. The goal of the study was to highlight the qualitatively different effects of automation false alarms and misses as they relate to operator(More)
OBJECTIVE Participants performed a tracking task and system monitoring task while aided by diagnostic automation. The goal of the study was to examine operator compliance and reliance as affected by automation failures and to clarify claims regarding independence of these two constructs. BACKGROUND Background data revealed a trend toward nonindependence(More)
We examined the effects of modality (auditory versus visual) and spatial separation when a simulated vehicle control (tracking) task (the ongoing task: OT) was time shared with a digit entry task (the interrupting task: IT), contrasting the predictions of auditory preemption theory with that of multiple resource theory. Participants performed the tracking(More)
With unmanned aerial vehicles (UAVs), 36 licensed pilots flew both single-UAV and dual-UAV simulated military missions. Pilots were required to navigate each UAV through a series of mission legs in one of the following three conditions: a baseline condition, an auditory autoalert condition, and an autopilot condition. Pilots were responsible for (a) mission(More)
Participants performed a tracking task along with a system and flight parameter monitoring task while aided by diagnostic automation. The goal of the study was to examine operator compliance and reliance as affected by automation failures, and to clarify claims regarding independence of these two constructs. Background data revealed a trend towards(More)
Twenty four pilots flew simulated missions in an unmanned air vehicle (UAV) simulator under both single and dual UAV control, and in three conditions: a baseline condition, a condition in which certain information was displayed auditorally, to offload the heavy visual demands of the mission, and a condition in which flight path tracking was automated. Three(More)
This experiment replicated many aspects of a UAV simulation paradigm in which imperfect automation aids assisted an easy visual monitoring task, while pilots concurrently performed a difficult surveillance task for targets of opportunity, and a primary mission completion task. In that study, changes in the threshold of the automated alert affected both the(More)
Twenty-four participants flew a simulated unmanned aerial vehicle (UAV) through ten mission legs while searching for targets of opportunity and monitoring system parameters. Participants were assisted by automation which provided auditory alerts in response to system failures (SF). The auto-alerts were either 80% reliable or 60% reliable; the latter(More)
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