mental workload adult 3 female 3 human 3 human experiment 3 male 3 Air traffic control 2 EEG 2 alpha rhythm 2 article 2 clinical article 2 electroencephalography 2 eye-tracking 2 supervisory control 2 taskload 2 theta rhythm 2 workload 2 Air traffc control 1 Air traffic controller 1 Alpha activities 1 Article 1 Aviation 1 Aviators 1 Complexity based 1 Complexity measures 1 Controllers 1 Domain specificity 1 ECG 1 Electro-encephalogram (EEG) 1 Electroencephalography 1