The sleeping rat shows signs of orienting response to neutral stimuli.
D000818:Animals; D001143:Arousal; D001288:Attention; D005072:Evoked Potentials, Auditory; D006185:Habituation, Psychophysiologic; D008297:Male; D051381:Rats; D011919:Rats, Inbred Strains; D012894:Sleep Stages