title: Drug effect on blink rates in rhesus monkeys: preliminary studies.
abstract: Various drugs that alter central monoamine activity were given to monkeys to determine effects on blink rate. Chronic pargyline treatment raised the mean +/- SD blink rate slightly to 18.2 +/- 5.3 blinks/90 sec. When phenylethylamine was added to chronic pargyline treatment, blinks increased from a base line of 16.8 +/- 7.6 blinks/90 sec to 37 +/- 15 blinks/90 sec. Apomorphine (0.36 mg/kg) raised blinks from a base lone of 12.2 +/- 2.8 blinks/90 sec. to 41.9 +/- 10.3 blinks/90 sec. and reversed a decrease in blinking caused by haloperidol. The neurochemical basis of blinking and implications for tardive dyskinesia are discussed.
mesh_terms: D000818:Animals; D001058:Apomorphine / Q000494:pharmacology; D001767:Blinking / Q000187:drug effects*; D004298:Dopamine / Q000378:metabolism; D006220:Haloperidol / Q000494:pharmacology; D008253:Macaca mulatta; D008297:Male; D010293:Pargyline / Q000494:pharmacology; D010627:Phenethylamines / Q000494:pharmacology
chemical_list: D010627:Phenethylamines; D010293:Pargyline; D006220:Haloperidol; D001058:Apomorphine; D004298:Dopamine