Fig 1.
Flow chart of the experimental procedures.
Table 1.
Baseline information of the participants.
Table 2.
NASA-TLX scale towards the real flight task load and the simulated flight task load (n = 15, ± s).
Table 3.
The result of the NASA-TLX scale, Sternberg dual task and reaction time test before and after the task load in the experimental and control groups.
Fig 2.
The cerebral blood oxygen parameters in experimental and control groups every 20 min within 160 min.
(A) blood oxygen saturation (rsO2); (B) Changes of HbO2 (ΔHbO2); (C) changes of deoxyhemoglobin concentration (ΔHb); (D) changes in total hemoglobin concentrations (ΔtHb).
Fig 3.
The ROC curve of 4 different indicators for measuring the task load.
Table 4.
The cut-off value of each index.