JAMA Network Open
May 7, 2026
Peter S. Hendricks, Sara N Lappan, Richard C. Shelton et al.
4 citations
Importance: Cocaine use disorder is a serious public health problem and no medications have been proven effective for its treatment. Objective: To evaluate psilocybin in the treatment of cocaine use disorder. It was hypothesized that psilocybin, compared with placebo, would yield a higher percentage of cocaine abstinent days, a greater likelihood of complete abstinence from cocaine, and a...
Neuropsychopharmacology
October 1, 2001
Adrienne C. Lahti, M A Weiler, B A Tamara Michaelidis et al.
This study evaluates the effects of ketamine on healthy and schizophrenic volunteers (SVs) in an effort to define the detailed behavioral effects of the drug in a psychosis model. We compared the effects of ketamine on normal and SVs to establish the comparability of their responses and the extent to which normal subjects might be used experimentally as a model. Eighteen normal volunteers (NVs)...
Journal of Psychiatric Research
September 1, 1996
D J LaPorte, Adrienne C. Lahti, B Koffel et al.
Glutamatergic dysfunction may play an important role in both the pathophysiology of schizophrenia, and impaired memory commonly observed in that disorder. NMDA receptor antagonists impair learning/memory in animal models, putatively based on its ability to block long-term potentiation (LTP) in the hippocampus. Although well studied in animal models, research in humans is limited and confounded...
Neuropsychopharmacology
August 1, 1995
Adrienne C. Lahti, B Koffel, D LaPorte et al.
We administered ketamine to schizophrenic individuals in a double-blind, placebo-controlled design using a range of subanesthetic doses (0.1, 0.3, and 0.5 mg/kg) to evaluate the nature, dose characteristics, time course, and neuroleptic modulation of N-methyl-D-aspartate (NMDA) antagonist action on mental status in schizophrenia. Ketamine induced a dose-related, short (< 30 minutes) worsening...
Neuroreport
April 1, 1995
Adrienne C. Lahti, Henry H. Holcomb, Deborah R. Medoff et al.
440 citations
The non-competitive NMDA antagonist ketamine, given to schizophrenic individuals in subanesthetic doses, produced a short-lived, discrete activation of their psychotic symptoms, which had striking similarities to symptoms of their usual psychotic episodes. To further study this psychotomimetic property of ketamine, we administered 0.3 mg kg-1 of the drug to schizophrenic individuals during a...