Human factors
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Comparative Study
Head up versus head down: the costs of imprecision, unreliability, and visual clutter on cue effectiveness for display signaling.
We conducted 2 experiments to investigate the clutter-scan trade-off between the cost of increasing clutter by overlaying complex information onto the forward field of view using a helmet-mounted display (HMD) and the cost of scanning when presenting this information on a handheld display. In the first experiment, this trade-off was examined in terms of the spatial accuracy of target cuing data in a relatively sparse display; in the second, the spatial accuracy of the cue was varied more radically in an information-rich display. ⋯ When the HMD displayed task-irrelevant information, however, target detection was hindered by the extraneous clutter in the forward field of view relative to the handheld display condition, and this cost of clutter increased as the amount of data that needed to be inspected increased. Potential applications of this research include the development of design considerations for head-up displays for aviation and military applications.
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Comparative Study
Effects of deliberate practice on crisis decision performance.
This study examined the impact of deliberate practice on pilot decision making in once-in-a-career crisis decision scenarios. First we explored the impact of deliberate practice on pilot decision-making performance for crisis flying scenarios that had been practiced in their entirety. Then we looked at the impact of deliberate practice in which one aspect of the crisis scenario--the particular malfunction--was unpracticed. ⋯ However, for part-practiced scenarios, deliberate practice appears to differentially affect phase of error. Specifically, pilots with more deliberate practice erred in action selection, whereas less-practiced pilots erred in assessment. Actual or potential applications of this research include training proscriptions for crisis decision making.