[Multivariate discriminant analysis for assessing mental workload during duel task operation].
In order to investigate the efficiency of multivariate discriminant analysis in the assessment of mental workload during dual task operations, various psychophysiological indices and performance were recorded. The dual task consisted of the primary visual tracking task and the secondary Oddball task. The results indicated that tracking error, latency of P3 and IBI of HR correlated well with the mental workload and the multivariate discriminant analysis succeeded in classifying the levels of mental workload with higher conformation rate than those using the single index. It suggests that multivariate discriminant analysis is meaningful in the assessment of mental workload under dual task situations.
Dong
M
M
Department of Aerospace Physiology, Fourth Military Medical University, Xi'an, China.
Ma
R
R
Cheng
H
H
D000337:Aerospace Medicine; D002965:Classification; D016002:Discriminant Analysis; D006339:Heart Rate / Q000502:physiology*; D006801:Humans; D008606:Mental Processes; D015999:Multivariate Analysis; D011597:Psychomotor Performance; D013647:Task Performance and Analysis; D016526:Workload