TY - JOUR
T1 - Possible amotivational effects following marijuana smoking under laboratory conditions
AU - Cherek, Don R.
AU - Lane, Scott D.
AU - Dougherty, Donald M.
N1 - Copyright:
Copyright 2011 Elsevier B.V., All rights reserved.
PY - 2002
Y1 - 2002
N2 - Human participants earned money by responding on a progressive-ratio (PR) schedule (initial value $50) or received money without responding on a fixed-time (FT) schedule. During the session, participants could terminate the PR schedule and initiate an FT 200-s schedule. In Experiment 1, increases in monetary value produced increased number of responses, time spent, and money earned in the PR component. In Experiment 2, marijuana smoking produced potency-related reductions in the number of responses, time spent, and money earned in the PR component, effects that can be interpreted as amotivational. Increasing the monetary value of the reinforcer diminished the acute marijuana effects on PR responding, suggesting that marijuana exerted an effect primarily on reinforcers of a smaller magnitude.
AB - Human participants earned money by responding on a progressive-ratio (PR) schedule (initial value $50) or received money without responding on a fixed-time (FT) schedule. During the session, participants could terminate the PR schedule and initiate an FT 200-s schedule. In Experiment 1, increases in monetary value produced increased number of responses, time spent, and money earned in the PR component. In Experiment 2, marijuana smoking produced potency-related reductions in the number of responses, time spent, and money earned in the PR component, effects that can be interpreted as amotivational. Increasing the monetary value of the reinforcer diminished the acute marijuana effects on PR responding, suggesting that marijuana exerted an effect primarily on reinforcers of a smaller magnitude.
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U2 - 10.1037/1064-1297.10.1.26
DO - 10.1037/1064-1297.10.1.26
M3 - Article
C2 - 11866249
AN - SCOPUS:0036161913
VL - 10
SP - 26
EP - 38
JO - Experimental and Clinical Psychopharmacology
JF - Experimental and Clinical Psychopharmacology
SN - 1064-1297
IS - 1
ER -