Biomedical Science Letters

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Fig. 1.

Results for relative power ratio of EEG. (a) Result of α wave relative power ratio, (b) Result of β wave relative power ratio. The α and β waves were analyzed using the occipital area and the frontal area where each wave was clearly observed. Compared with the group without the direction arrow (pre groups), the α wave increased and the β wave tended to decrease in the group with the pointing arrow (post groups) (**; P < 0.01, *; P < 0.05).

Biomed Sci Letters 2019;25:139-48 https://doi.org/10.15616/BSL.2019.25.2.139
© 2019 Biomed Sci Letters