Journal of psychopharmacology (Oxford, England)Dec 26, 2025

Learning as the common way psychedelics work

Psychedelic Science Weekly Brief ↗PubMed ↗DOI ↗OA ↗

Updated Dec 29, 2025

Abstract

Psychedelics may lead to lasting changes in behavior and mental health.

Psychedelics could enhance learning, which may explain their sustained effects.
These substances may change how the brain processes information both from the environment and internally.
The context of use, including psychological support, may significantly influence the outcomes of psychedelic experiences.
Psychedelics might reopen critical periods for learning, similar to those seen in childhood.
Understanding these mechanisms could improve how psychedelic-assisted therapy is designed and conducted.

Simplified

Psychedelics are gaining attention as putative treatments for a range of psychiatric conditions, and evidence suggests that they produce sustained behavioural and clinical change. Enhanced learning is an emerging candidate mechanism mediating these sustained effects. This narrative review synthesises evidence across behavioural, neural and computational levels to examine the current evidence base for how psychedelics may alter learning mechanisms. We propose that viewing psychedelic mechanisms through the lens of learning unifies context-dependent outcomes, increased environmental sensitivity and neuroplastic change. We discuss how persistent changes in top-down and bottom-up information processing at a systems-level may account for both the therapeutic and adverse effects of psychedelics, and highlight a mechanistic convergence between such systems-level changes and the recently identified psychedelic-mediated reopening of critical learning periods. This systems-level framework may explain why psychedelic outcomes vary widely and hinge critically on the context: it is the learning environment, including psychological support and therapeutic insights, which shapes the lasting effect. If the post-psychedelic period is characterised by a vulnerable neuroplastic state in combination with increased environmental sensitivity, usually observed uniquely during childhood, this would offer a window of opportunity for revision of entrenched beliefs. Understanding these mechanisms has important translational relevance for the design and implementation of psychedelic-assisted psychotherapy.

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Competing interests

Declaration of conflicting interestsThe authors declared the following potential conflicts of interest with respect to the research, authorship, and/or publication of this article: AHY has received grant funding from LivaNova, Janssen, Compass Pathways Plc., Novartis, NIMH, CIHR, NARSAD, Stanley Medical Research Institute, MRC, Wellcome Trust. Royal College of Physicians, BMA, UBC-VGH Foundation, WEDC, CCS Depression Research Fund MSFHR, NIHR, and EU Horizon 2020 has received payments or honoraria for presentations or advisory roles from Flow Neuroscience, Novartis, Roche, Janssen, Takeda, Noema pharma, Compass Pathways Plc., AstraZeneca, Boehringer Ingelheim, Eli Lilly, LivaNova, Lundbeck, Sunovion, Servier, Janssen, Allergan, Bionomics, Sumitomo Dainippon Pharma, Sage and Neurocentrx, and is co-editor of Journal of Psychopharmacology. MM has research funding from Nxera and Lundbeck and received in-kind contributions from Compass Pathways. He has consulted for Boehringer Ingelheim and Nxera and received speaker fees from Takeda.

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Learning as the common way psychedelics work

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