in adult hens ( gallus domesticus ) infusion into the iiird cerebral ventricle of 5,6-dht ( 50 , 75 and 100 mug ) produced , after 5-10 min behavioural and electrocortical sedation and sleep lasting about 6-8 hr , and a monophasic or biphasic increase in body temperature for about 8 hr , two and a half hr after 5,6-dht administration , the histochemical picture showed a sustained decrease in yellow and green fluorescence in areas adjacent to the iiird ventricle , in the anterior hypothalamus and in the preoptic area , whereas no significant changes were detected in fluorescence of the tegmental cell-bodies .
C0004927
behavioural
C0037313
sleep