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Keith G. Heinzerling

6 papers in the library · 536 citations · publishing 2022-2026

Papers

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Intentions, Spirituality, Set, and Setting Are Associated with Mystical Experiences in Psilocybin-Assisted Therapy

Psychedelic Medicine January 12, 2026 Kelsey T. Laird, Prabha Siddarth, Ashley Ramos et al.

Objective: Emerging evidence suggests that mystical experiences mediate the therapeutic effects of psychedelic-assisted therapy. The current study examines associations between mystical experiences and components of “set” (positive mindset, participant intentions, and spirituality) and “setting” (perceived positivity of the dosing environment) in the context of psilocybin-assisted therapy for...

A Nature-Themed Video Intervention Increases Nature Relatedness in Psilocybin-Assisted Psychotherapy for Alcohol Use Disorder

Psychedelic Medicine December 26, 2025 Rhianna Rich, Kelsey T. Laird, Prabha Siddarth et al.

Background: Psychedelic-assisted psychotherapy has shown promising results for treating alcohol use disorder (AUD) and other mental health conditions. Although the precise mechanisms of psychedelic therapies remain unclear, many studies report increased feelings of connectedness following psychedelic experiences. Specifically, both nature relatedness (one’s subjective sense of being connected...

A Field-Wide Review and Analysis of Study Materials Used in Psilocybin Trials: Assessment of Two Decades of Research

Psychedelic Medicine January 20, 2025 Marianna Graziosi, Gabrielle Agin-Liebes, Mary P Cosimano et al. 9 citations

Introduction: Serotonergic psychedelics, serotonin 2A receptor agonists such as psilocybin that can result in substantially altered states of consciousness, are used in recreational and research settings. The safety of psychedelic experiences in research settings is supported by controlled physical environments, presence of clinical and medical staff to address emergent issues, screening for...

Nature-themed video intervention may improve cardiovascular safety of psilocybin-assisted therapy for alcohol use disorder

Frontiers in Psychiatry September 18, 2023 Karina Sergi, Micah Linton, Rhianna Rich et al. 21 citations

Introduction Psychedelic-assisted therapy with psilocybin has shown promise in Phase 2 trials for alcohol use disorder (AUD). Set and setting, particularly factors facilitating a connection with nature, may positively influence the psychedelic experience and therapeutic outcomes. But to date, randomized controlled trials of interventions to enhance set and setting for psychedelic-assisted...

Single-Dose Psilocybin Treatment for Major Depressive Disorder

JAMA August 31, 2023 Charles L. Raison, Gerard Sanacora, Joshua Woolley et al. 493 citations

Importance Psilocybin shows promise as a treatment for major depressive disorder (MDD). Objective To evaluate the magnitude, timing, and durability of antidepressant effects and safety of a single dose of psilocybin in patients with MDD. Design, Setting, and Participants In this phase 2 trial conducted between December 2019 and June 2022 at 11 research sites in the US, participants were...

Psychedelic-Assisted Therapy and Psychedelic Science: A Review and Perspective on Opportunities in Neurosurgery and Neuro-Oncology

Neurosurgery December 8, 2022 Akanksha Sharma, Shanthi Gowrinathan, Karina Sergi et al. 13 citations

After a decades-long pause, psychedelics are again being intensely investigated for treating a wide range of neuropsychiatric ailments including depression, anxiety, addiction, post-traumatic stress disorder, anorexia, and chronic pain syndromes. The classic serotonergic psychedelics psilocybin and lysergic acid diethylamide and nonclassic psychedelics 3,4-methylenedioxymethamphetamine and...