Study on fluctuation of EEG power and FPG power in Fatigue task

Abstract

Our purpose of this study is to quantify degree of mental fatigue by EEG signals and FPG signals. In this paper, we observe fluctuations of EEG power spectrums and FPG power spectrums by degree of mental fatigue during the reading tasks. Subjects read sentences aloud in the reading tasks. Subjects are instructed to read 50-sentences aloud and to take a 60-seconds rest in one trial. In this experiment, subjects take a 60-seconds rest in the first time and then repeat the trials ten times.Subjects perform a RAS check before and after a experiment and after trial 5. The Fourier transform is applied to the EEG and the FPG data during each interval period. We calculate α, β and γ band in EEG power spectrums and LF and HF band in FPG power spectrums.As results, fluctuations are observed in EEG power spectrums, FPG power spectrums as the experiment progresses.