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Joel Gruneau Brulin

5 papers in the library · 26 citations · publishing 2021-2026

Papers

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Connectedness as a candidate pathway linking psilocybin retreat experiences to sustained wellbeing: a prospective naturalistic study

Frontiers in Psychiatry October 28, 2026 Maria Åkesson, Pehr Granqvist, Robert Johansson et al.

BackgroundPsychedelic retreats are increasingly used to promote wellbeing outside clinical settings, yet the psychological processes associated with sustained improvements in wellbeing remain poorly understood. From a public mental health perspective, identifying mechanisms that support positive mental health beyond symptom reduction is of growing importance.MethodsThis naturalistic...

A dose of therapy with psilocybin - A meta-analysis of the relationship between the amount of therapy hours and treatment outcomes in psychedelic-assisted therapy

General Hospital Psychiatry August 5, 2025 Jennie Hultgren, Matthias H Hafsteinsson, Joel Gruneau Brulin 13 citations

Our findings did not support that the amount of therapy hours influence depressive outcomes in PAT. However, this interpretation should be made with caution due to small sample sizes, heterogeneity, and poor reporting of the therapeutic component across studies. Future research should apply greater methodological rigor and standardized reporting of therapy to clarify its role in PAT.

DOI: 10.1016/j.genhosppsych.2025.07.020 (opens in new tab) Psilocybin Meta-analysis Pharmacotherapy Psychotherapist +1

Synthesizing Attachment Theory with the REBUS Model

The Oxford Handbook of Psychedelic, Religious, Spiritual, and Mystical Experiences December 18, 2024 Aaron D. Cherniak, Robin Carhart-Harris, Joel Gruneau Brulin et al. 2 citations

Abstract In this chapter, the authors synthesize the relational developmental perspective of attachment theory with a neuroscientific model: the RElaxed Beliefs Under pSychedelics (REBUS). This synthesis, the authors argue, can serve as an organizing framework for psychedelic science. Attachment theory posits that people develop internal working models (IWMs) of relational experiences with...

Perceived attachment history predicts psychedelic experiences: A naturalistic study

Journal of Psychedelic Studies March 5, 2024 Aaron D. Cherniak, Mario Mikulincer, Joel Gruneau Brulin et al. 7 citations

Abstract Background and aims Emerging research indicates that psychedelics may have therapeutic potential by fostering meaningful experiences that act as “inflection points” in people's narratives of personal development. However, psychedelic research has largely failed to address pertinent developmental considerations. We investigated whether attachment-related variables were associated with...

DOI: 10.1556/2054.2024.00330 (opens in new tab) Full text (opens in new tab) Naturalism Naturalistic observation Developmental psychology

Psychedelic Science of Spirituality and Religion: An Attachment-Informed Agenda Proposal

December 25, 2021 Aaron D. Cherniak, Joel Gruneau Brulin, Mario Mikulincer et al. 4 citations preprint

In this paper, we set an agenda for a psychedelic science of spirituality and religion, based on a synthesis of attachment theory with the Relaxed Beliefs Under pSychedelics (REBUS) model. Attachment theory proposes that people develop internal working models (IWMs) of interactions with others from their relational experiences with caregivers. Such IWMs then function as high-level priors...

DOI: 10.31234/osf.io/x58m9 (opens in new tab) Full text (opens in new tab) Spirituality Attachment theory Psychological intervention Psychotherapist +4