doi: 10.1016/0014-2999(91)90351-p.
Yawning produced by dopamine agonists in rhesus monkeys
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- PMID: 1686760
- DOI: 10.1016/0014-2999(91)90351-p
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Yawning produced by dopamine agonists in rhesus monkeys
Eur J Pharmacol.
.
Abstract
Yawning was recorded from five rhesus monkeys restrained in a chair after i.m. injection of dopaminergic compounds: apomorphine (0.03 mg/kg), quinpirole (0.01 mg/kg), and (-)-3-(3-hydroxyphenyl)-N-(1-propyl)piperidine (1 mg/kg). SKF 38393 or physostigmine produced no yawning. Yawning from apomorphine was blocked by chlorpromazine or SCH 23390 (0.03 mg/kg). Sulpiride (10 mg/kg) was ineffective. The difference between rats and monkeys in their yawning response to dopaminergic compounds is discussed.
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