the intraventricular injection ( 0.1-1 nmol ) of ( - ) 3ppp [ 3- ( 3-hydroxyphenyl ) n-n-propylpiperidine ] , a specific agonist at dopamine ( da ) autoreceptors , produced dose-dependent behavioural sedation or sleep and an increase in ecog spectrum power , with a predominant increase in the lower frequency bands .
C0004927
behavioural
C0037313
sleep