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Severe aggression in rats induced by mescaline but not other hallucinogens

Robert J. Sbordone, Joseph A. Wingard, David A. Gorelick, Mark L. Elliott

Psychopharmacology December 1, 1979 DOI: 10.1007/bf00428319 (opens in new tab)

Study at a glance

AI-extracted from the abstract
Characteristics Controlled experiment Peer reviewed
Population Male Sprague-Dawley rats
Interventions Mescaline Lysergic acid diethylamide (LSD) Psilocin N N-dimethyltryptamine (DMT) 3 4-dimethoxyphenylethylamine (DMPEA) 5-hydroxydopamine (5-OHDA)
Dose Mescaline 50 or 250 mg; LSD 25-400 micrograms/kg; Psilocin 2.0 mg/kg; DMT 5 mg/kg; DMPEA not specified; 5-OHDA 8-200 mg/kg
Topics LSD Mescaline
Keywords Hallucinogen Biting Aggression Pharmacology
Citations 16
Key findings Mescaline uniquely induces pathological biting aggression in rats exposed to foot shock, an effect not produced by LSD, psilocin, DMT, DMPEA, or 5-OHDA.

Abstract

Pairs of male Sprague-Dawley rats were administered mescaline, lysergic acid diethylamide (LSD), psilocin, N,N-dimethyltryptamine (DMT), 3,4-dimethoxyphenylethylamine (DMPEA), or 5-hydroxydopamine (5-OHDA) IP prior to being placed in a shock-elicited aggression situation. When foot shock was delivered, controls struck each other with their forepaws, but never engaged in either biting or injurious fighting. Mescaline-treated rats (50 or 250 mg) rarely struck each other, but engaged in nearly lethal biting. While LSD (25--400 micrograms/kg), psilocin (2.0 mg/kg), and DMT (5 mg/kg) produced some biting, this did not significantly differ from controls and never resulted in injuries. At higher doses, psilocin, DMT, and DMPEA decreased the amount and intensity of fighting. Rats treated with 5-OHDA (8--200 mg/kg) or LSD (25--400 micrograms/kg) did not differ from controls. These results suggest that mescaline's ability to induce pathological aggression in rats exposed to foot shock is not shared by other hallucinogens or nonhallucinogenic mescaline analogues.

Comparable studies

Other preclinical and animal studies on mescaline, most cited first.

Study Year Design Participants
Correlation between the potency of hallucinogens in the mouse head-twitch response assay and their behavioral and subjective effects in other species. C57BL/6J mice 2020 Experimental study with dose-response experiments
Brain mechanisms of hallucinogens and entactogens Humans and rats 2001 Review
Effects of hallucinogenic agents mescaline and phencyclidine on zebrafish behavior and physiology Zebrafish (Danio rerio) 2012 Experimental study
Lysergic Acid Diethylamide- and Mescaline-Induced Attenuation of the Effect of Punishment in the Rat Rats 1976 Experimental study
Dihydrobenzofuran Analogues of Hallucinogens. 3. Models of 4-Substituted (2,5-Dimethoxyphenyl)alkylamine Derivatives with Rigidified Methoxy Groups Rats (trained to discriminate saline from LSD tartrate) and rat cortical and... 1996 In vivo drug discrimination assay and in vitro radioligand binding assay

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