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Karen L. Cropsey

3 papers in the library · 183 citations · publishing 2014-2026

Papers

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Psilocybin in the Treatment of Cocaine Use Disorder

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...

The relationships of classic psychedelic use with criminal behavior in the United States adult population

Journal of Psychopharmacology October 17, 2017 Peter S. Hendricks, Michael S Crawford, Karen L. Cropsey et al. 91 citations

Criminal behavior exacts a large toll on society and is resistant to intervention. Some evidence suggests classic psychedelics may inhibit criminal behavior, but the extent of these effects has not been comprehensively explored. In this study, we tested the relationships of classic psychedelic use and psilocybin use per se with criminal behavior among over 480,000 United States adult...

Hallucinogen use predicts reduced recidivism among substance-involved offenders under community corrections supervision

Journal of Psychopharmacology 2014 Peter S. Hendricks, Christopher Clark, Matthew W. Johnson et al. 88 citations

Hallucinogen-based interventions may benefit substance use populations, but contemporary data informing the impact of hallucinogens on addictive behavior are scarce. Given that many individuals in the criminal justice system engage in problematic patterns of substance use, hallucinogen treatments also may benefit criminal justice populations. However, the relationship between hallucinogen use...