Morphine administration selectively facilitates social play in common marmosets

• Published in: Developmental psychobiology Vol. 41; no. 1; pp. 37 - 49
• Main Authors: Guard, Heather J., Newman, John D., Roberts, R. Lucille
• Format: Journal Article
• Language: English
• Published: New York Wiley Subscription Services, Inc., A Wiley Company 01.07.2002
• Subjects: Analysis of Variance; Animals; Behavior, Animal - drug effects; Callithrix; common marmosets; Dose-Response Relationship, Drug; Female; juveniles; Male; morphine; Morphine - pharmacology; Motor Activity - drug effects; naloxone; Naloxone - pharmacology; Narcotic Antagonists - pharmacology; opiates; Play and Playthings; Premedication; Receptors, Opioid - administration & dosage; Sex Factors; Social Behavior; social play behavior; Time Factors

Common marmosets (Callithrix jacchus) form extended families, and several cohorts of young may reside together. Play is shown extensively among the offspring. We hypothesized that opiate activity modulates social play, and predicted that administration of morphine (0.5 mg/kg) would facilitate social...