RT Journal Article SR Electronic T1 THE EFFECT OF MORPHINE SULFATE ON AVOIDANCE AND ESCAPE BEHAVIOR JF Journal of Pharmacology and Experimental Therapeutics JO J Pharmacol Exp Ther FD American Society for Pharmacology and Experimental Therapeutics SP 248 OP 251 VO 125 IS 3 A1 Thom Verhave A1 John E. Owen, Jr. A1 E. Brown Robbins YR 1959 UL http://jpet.aspetjournals.org/content/125/3/248.abstract AB The effects of 3 doses of morphine upon avoidance and escape behavior were investigated in rats. Each dose was administered to each of 8 individual animals. A differential depressant effect of morphine on avoidance behavior was demonstrated.