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. 2014 Jan 15;75(2):148–155. doi: 10.1016/j.biopsych.2013.05.013

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© 2014 Society of Biological Psychiatry. Published by Elsevier Inc. All rights reserved.

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Premature responding and motivation index. (A) Premature responses in abstinent alcohol- (EtOH) (n = 30) and methamphetamine-dependent (Meth) (n = 23) subjects, recreational cannabis users (Cann) (n = 30), and obese subjects with binge eating disorder (BED) (n = 30) (Index group = red) versus healthy volunteers (HV) (black) and obese control subjects without BED (white) (n = 30). (B) Premature responses in current and past HV smokers and nonsmokers. (C) Motivation Index in EtOH (n = 30) versus HV. Error bars represent SEM. *p < .05; **p < .005.

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