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Fig. 2 | Environmental Health and Preventive Medicine

Fig. 2

From: The effect of nocturnal blue light exposure from light-emitting diodes on wakefulness and energy metabolism the following morning

Fig. 2

Delta and alpha power of EEG as percentage of total power. Average ± SE in 30-min intervals were plotted for blue light (open circle) and no light (filled circle) conditions. The percentage of alpha power in the blue light condition was significantly lower than that in the no light condition during the light exposure (p < 0.05; Wilcoxon signed rank test)

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Environmental Health and Preventive Medicine

ISSN: 1347-4715

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