Panel A: The percent time spent in sleep–wakefulness by P and NP rats during 24 hr of pre-ethanol baseline is described. The amount of time spent in each behavioral state by P and NP rats was comparable suggesting that there was no inherent difference in sleep-wakefulness in P and NP rats.
Panel B: The effect of chronic binge ethanol treatment on the percent time spent in sleep-wakefulness during the 24 hr period of post-ethanol day is described. As compared to NP rats, the P rats displayed a significant increase in wakefulness coupled with a significant decrease in NREM sleep on post ethanol day. REM sleep was comparable in P and NP rats. * = p<0.05