A. Typical examples of polygraphic recordings and corresponding
hypnograms and FFT delta power following vehicle or CNO (0.2 mg/kg, i.p. at 9
a.m.) administration in a rat with hM3Dq receptors in the mesolimbic dopamine
neurons (black, wakefulness; red, REM sleep; yellow, NREM sleep).
B. Time course of wake, REM and NREM sleep produced by saline or CNO
(0.2 mg/kg) injection at 9 a.m. or at 9 p.m. Data is shown by hourly mean
± SEM of wake, REM and NREM sleep. *p < 0.05; **p <
0.01.