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. 2022 Oct 5;22(19):7555. doi: 10.3390/s22197555

Figure 7.

Figure 7

Figure 7

The short-term effect of PBM stimulation on the power spectrum when the alpha and theta bands are observed. The figures show the ratios in the observed bands for the r1 and r2: (a,b) show the power ratios between the r1 after and before stimulation for the alpha band with OE and CE for each electrode, (c,d) show the ratios for the r2. (e,f) show the power ratios between the r1 after and before stimulation for the theta band with OE and CE for each electrode. Figure (g,h) show the ratios for the r2 for each electrode.