EEG power density (%) during wakefulness, non-REM, and REM sleep in Wild-Type (WT) or PRKO mice treated with vehicle (Veh) or progesterone (Prog) for 7 days.

<p>EEG power bands are as follows: δ(2–4 Hz); θ(4–7.5 Hz); α(7.5–13.5 Hz); β(13.5–35 Hz). **: P<0.01 for PRKO mice treated with vehicle vs. other groups.