Fig. 7.

Power spectra of the first (A and B) and last (C and D) 4-h time blocks post-sleep deprivation (SD). Zeitgeber time (ZT)20–ZT4 (A and C) and ZT8–ZT16 (B and D) were calculated for 0.5-Hz bins from 1.0- to 20-Hz frequency range; values were normalized to values between 17- and 17.5-Hz bin as in Fig. 1B. Means ± SE are shown. Differences between strains were found in the lower frequency bands (A through D). *P < 0.05, AcPb knockout (KO) vs. wild-type (WT); #P < 0.05, AcP KO vs. WT; +P < 0.05, AcPb KO vs. AcP KO. AcP, interleukin-1 receptor accessory protein; AcPb, brain-specific AcP; FFT, fast Fourier transformation; NREMS, non-rapid eye movement sleep.