Spencer W. Wheeler - Mindscape Collective

Papers

A systematic review of psychedelic-assisted psychotherapy for mental health: An evaluation of the current wave of research and suggestions for the future.

Psychology of Consciousness Theory Research and Practice June 4, 2020 Spencer W. Wheeler, Natalie L. Dyer 69 citations

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DOI: 10.1037/cns0000237 Psychology Psychotherapist Mental health

Subjective Effects and Characteristics of Salvia Divinorum Use from a Retrospective Largescale Survey

June 26, 2026 Spencer W. Wheeler, Jonathan Dinsmore, Natalie L. Dyer preprint

Salvia divinorum is a unique psychedelic whose active compound, salvinorin A, acts on kappa opioid receptors. In an online survey of 321 participants about their most recent salvia experience, the average number of items endorsed on the Salvia Experience Checklist (SEC) was 16.5 out of 58, and the average Hallucinogen Rating Scale (HRS) score was 186.36. Scores on all HRS subscales correlated significantly with SEC scores. Exploratory factor analysis of the SEC yielded 10 factors, and content analysis identified 16 major themes. Higher SEC scores were associated with stronger extract potency and with smoking as the administration method. The findings help characterize salvia's phenomenology and support further development of the SEC.

DOI: 10.31234/osf.io/n9gfq_v1 Checklist Salvia officinalis Rating scale Exploratory research +3