Task-independent auditory probes reveal changes in mental workload during simulated quadrotor UAV training

Shaodi Wang; Heng Gu; Qunli Yao; Chao Yang; Xiaoli Li; Gaoxiang Ouyang

doi:10.1007/s13755-023-00213-2

Task-independent auditory probes reveal changes in mental workload during simulated quadrotor UAV training

Health Inf Sci Syst. 2023 Mar 7;11(1):12. doi: 10.1007/s13755-023-00213-2. eCollection 2023 Dec.

Authors

Shaodi Wang^#¹, Heng Gu^#¹, Qunli Yao¹, Chao Yang¹, Xiaoli Li¹, Gaoxiang Ouyang¹

Affiliation

¹ State Key Laboratory of Cognitive Neuroscience and Learning, Beijing Normal University, Beijing, 100875 People's Republic of China.

^# Contributed equally.

PMID: 36910421
PMCID: PMC9992679 (available on 2024-12-01)
DOI: 10.1007/s13755-023-00213-2

Abstract

Objective: The event-related potential (ERP) methods based on laboratory control scenes have been widely used to measure the level of mental workload during operational tasks. In this study, both task difficulty and test time were considered. Auditory probes (ignored task-irrelevant background sounds) were used to explore the changes in mental workload of unmanned aerial vehicle (UAV) operators during task execution and their ERP representations.

Approach: 51 students participated in a 10-day training and test of simulated quadrotor UAV. During the experiment, background sound was played to induce ERP according to the requirements of oddball paradigm, and the relationship between mental workload and the amplitudes of N200 and P300 in ERP was explored.

Main results: Our study shows that the mental workload during operational task training is multi-dimensional, and its changes are affected by bottom-up perception and top-down cognition. The N200 component of the ERP evoked by the auditory probe corresponds to the bottom-up perceptual part; while the P300 component corresponds to the top-down cognitive part, which is positively correlated with the improvement of skill level.

Significance: This paper describes the relationship between ERP induced by auditory probes and mental workload from the perspective of multi-resource theory and human information processing. This suggests that the auditory probe can be used to reveal the mental workload during the training of operational tasks, which not only provides a possible reference for measuring the mental workload, but also provides a possibility for identifying the development of the operator's skill level and evaluating the training effect.

Keywords: EEG; ERP; Human information processing; Mental schema; Mental workload.

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