Rats trained to discriminate d-lysergic acid diethylamide (LSD; 0.08 mg/kg) or 1-(m-trifluoromethylphenyl) piperazine (TFMPP; 0.8 mg/kg) were treated with the monoamine oxidase inhibitor (MAOI) phenelzine (10 mg/kg/day) for 7 days. After a 24 h “washout” period, they were challenged with the training drug (and dose) or saline, during extinction test sessions. Following 0.08 mg/kg LSD, LSD-trained rats responded primarily on the saline lever (29% drug-appropriate responding) while, after TFMPP (0.8 mg/kg), TFMPP-trained animals responded on the drug lever (75% drug-appropriate responding). These preliminary data suggest that, if serotonin receptors are involved in the behavioral effects of TFMPP, these receptors differ from those involved in the effects of LSD.
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Explore related subjectsDiscover the latest articles and news from researchers in related subjects, suggested using machine learning. ReferencesCunningham KA, Appel JB (1984) Discriminative stimulus properties of trifluoromethylphenylpiperazine (TFMPP): Effects of serotonin agonists and antagonists. Soc Neurosci Abstr 10:218
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Kathryn A. Cunningham
Present address: Department of Pharmacology, University of Texas Medical Branch, 77550, Galveston, TX, USA
Behavioral Pharmacology Laboratory, Department of Psychology, University of South Carolina, 29208, Columbia, SC, USA
Kathryn A. Cunningham, Brenda A. Carroll & James B. Appel
Cunningham, K.A., Carroll, B.A. & Appel, J.B. Effects of repeated administration of the monoamine oxidase inhibitor phenelzine on the discriminability of d-lysergic acid diethylamide (LSD) and 1-(m-trifluoromethylphenyl) piperazine (TFMPP). Psychopharmacology 89, 134–135 (1986). https://doi.org/10.1007/BF00175206
Received: 25 June 1985
Revised: 01 November 1985
Issue Date: May 1986
DOI: https://doi.org/10.1007/BF00175206
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