Objective measurement of mental fatigue
fatigue
To objectively assess mental fatigue in the participants, we examined the time-on-task effect on the Stroop tasks by dividing the 1200 trials into four blocks of 300 trials each during the analysis. Mean reaction time, error rates and number of missed trials were calculated and compared across the four blocks to obtain an objective index of mental fatigue in the two Stroop tasks. For the Stroop task