title: Do the origins of behavior matter? Commentary on Perkins' Baseline-dependency of nicotine effects: a review.
authors.affiliation: Department of Psychology, University of Florida, Gainesville 32611-2250, USA. branch@webb.psych.ufl.edu
authors.forename: M N
authors.initials: MN
authors.lastname: Branch
mesh_terms: D000818:Animals; D003216:Conditioning, Operant / Q000187:drug effects*; D006801:Humans; D009538:Nicotine / Q000494:pharmacology*; D018722:Nicotinic Agonists / Q000494:pharmacology*
chemical_list: D018722:Nicotinic Agonists; D009538:Nicotine