Fig. 3
Mean 24-h spectral power and activity ratios for the frontal and central electrodes during BL and INJ days in Aβo and Aβscr groups. A Twenty-four-h spectral power of the central and frontal electrodes during wake, SWS, and PS in Aβscr- and Aβo-injected rats at BL and INJ. B Spectral activity in each frequency band (SWA, 0.5–5 Hz; theta, 5–9 Hz; alpha, 9–12 Hz; sigma, 12–16 Hz; beta1, 16–20 Hz; beta2, 20–30 Hz; gamma, 30–55 Hz) during wake, SWS, and PS for Aβo-injected rats at BL (blue) and INJ (pink) for the frontal electrode (*p < 0.05; **p < 0.01, BL vs INJ). C Ratio of theta activity on gamma activity for the Aβo group at BL and INJ for the frontal electrode. D Ratio of theta activity on SWA for the Aβo group at BL and INJ for the frontal electrode (*p < 0.05, BL vs INJ). Aβscr, n = 9; Aβo, n = 6