Experimental morphine addiction: method for automatic intravenous injections in unrestrained rats.
An operant behavioral study on morphine addiction utilized a self-injection technique for giving intravenous injections to relatively unrestrained rats. The rate of self-injection varied inversely with the dose. Morphine was a reinforcer that produced almost immediate satiation.
D000818:Animals; D004864:Equipment and Supplies; D007275:Injections, Intravenous / Q000600:supply & distribution*; D009020:Morphine; D009021:Morphine Dependence; D051381:Rats
D009020:Morphine
INJECTIONS, INTRAVENOUS/equipment and supplies; MORPHINE ADDICTION/experimental