摘要

To investigate the effects of mental workload related to flight task on the preattentive processing, 14 subjects performed a flight simulation task under different mental workloads, and the mismatch negativity (MMN) was recorded as evaluation index. The subjects were asked to perform the whole process of flight simulation in a flight simulator, including take-off, cruise and landing. During the flight, subjects were instructed to keep monitoring the information targets presented on the head-up display and respond to any abnormal information. The mental workloads were manipulated by setting the quantities and refresh frequencies of the information targets. The experiment results reveal that the frontal-central MMN is affected by mental workload significantly. The present study can offer electrophysiological reference for flight mental workload assessment in complex tasks.

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