“…With the integration of heart rate monitor into the operator working environment, the mental load can be measured, monitored and managed in real-time. The physiological parameters of operators can be collected with the help of such medical methods such as Heart Rate—HR, Heart Rate Variability—HRV [ 42 , 87 , 88 ], Electrocardiogram—ECG [ 86 , 89 , 90 , 91 ], Electroencephalography—EEG [ 89 , 92 , 93 ], and Electromyography—EMG [ 69 , 94 , 95 ]. Heart Rate and Heart Rate Variability of pilots were measured by Mansikka et al during a real instrument flight rules proficiency test in an F/A-18 simulator as measures of pilot mental workload [ 88 ].…”