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Use of the Operant Orofacial Pain Assessment Device (OPAD) to Measure Changes in Nociceptive Behavior
Published on: June 10, 2013
Brief social isolation, pain responsiveness, and morphine analgesia in young rats
Psychopharmacology
|January 1, 1980
Abstract:
Vocalizations induced by brief tail-shock were measured in young rats that were either socially or individually housed. A single day of isolation increased tail-shock-induced vocalizations, and in animals isolated 3--4 days, morphine (4 mg/kg) was less effective in reducing vocalizations than in socially housed animals. The data suggest that social contact can sustain endogenous analgesic processes in the body.

