Differential effects of morphine on two-way avoidance in selectively bred rat strains.
Effects of morphine administration were investigated on avoidance behavior in five rat strains. Strain-dependent facilitation or suppression of avoidance acquisition was found in animals tested 1 h after the last administration of morphine. Significant strain differences were found in the incidences of sexual stimulation, diarrhea and wetness, reactivity, and death due to toxicity.
D000818:Animals; D001362:Avoidance Learning / Q000187:drug effects*; D005260:Female; D006801:Humans; D008297:Male; D009020:Morphine / Q000494:pharmacology*; D009021:Morphine Dependence; D051381:Rats; D011919:Rats, Inbred Strains; D013045:Species Specificity
D009020:Morphine