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In terms of the specific manipulator teleoperation mission in space station, we divided the teleoperation task into three stages, and then collected electroencephalogram (EEG) and extracted the power spectrum and the nonlinear dynamic characteristics in each stage. Also, to guarantee the task safe and accomplished and improve the evaluation system of mental workload, this paper analyzed the influence of the different stereo information on the mental workload in the three stages of manipulator teleoperation. The results showed that: NASA-TLX can significantly distinguish the change of mental workload of different stereo information levels in teleoperation, power spectrum characteristics of θ, α, β frequency band can effectively evaluate the mental workload level of each stage. In the first two stages, the local and global stereo information had a positive effect on reducing mental workload in teleoperation. On the contrary, the compensation of global stereo information added burden to mental workload in the third stage.

The influence of stereo information on the mental workload in the manipulator teleoperation process