Figure 2
Power spectrum density of ψ and ω and percentage of mean wakefulness, NonREM sleep, and REM sleep for each one-hour period over 36 hours. The power spectrum density sum was calculated for each hour over 36 hours. Panel (A) represents the ψ frequency band (285–315 Hz, squares) and the ω frequency band (385–585 Hz, filled circles). Panel (B) shows the percentage of mean wakefulness (solid with filled circles), NonREM sleep (dashes with squares), and REM sleep (dots with triangles) over 36 hours. The shaded area denotes the 12-hour dark phase of the light-dark cycle. The data are average results from three rats and the error bars indicate standard errors of the mean.
