Multiscale entropy-based analysis and processing of EEG signal during watching 3DTV

Background and Objective: With the development of 3DTV, the visual fatigue caused by watching 3DTV is getting more and more attention. Therefore, it is extremely important to study 3DTV's effects on human health. Methods: This paper utilized multiscale entropy (MSE) to analyze the variations of EEG signals in the occipital lobe before, during and after watching 2DTV and 3DTV for one hour respectively. Results: After analyzing MSE under scale 1-10, we found that MSE in occipital lobe did not have significant differences before and after watching 2DTV (p > 0.05); however, MSE decreased significantly after watching 3DTV (p < 0.05) in some scales. In addition, during the one-hour watching of 3DTV, MSE in occipital lobe increased at first, followed by a fluctuation after 25 min until reaching the minimum at about 50 min, indicating that visual fatigue gradually deteriorated from around 25 min and became severe at about 50 min. Conclusions: These results suggest that the watching of 3DTV should not exceed 50 min in order to avoid serious visual fatigue.