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Christopher Timmerman

Center for Psychedelic Research, Imperial College London, Kensington, UK.

3 papers in the library · 291 citations · publishing 2018-2025

Papers

The hidden therapist: evidence for a central role of music in psychedelic therapy

Psychopharmacology February 1, 2018 Mendel Kaelen, Bruna Giribaldi, Jordan Raine et al. 274 citations

Music plays a central therapeutic role in psychedelic therapy with psilocybin for treatment-resistant depression. In interviews with 19 patients, music had both welcome influences—evoking meaningful emotion, mental imagery, guidance, openness, calm, and safety—and unwelcome influences, such as unpleasant emotion, imagery, and resistance. Patients' experience of the music correlated with mystical experiences and insightfulness. Critically, the nature of the music experience significantly predicted reductions in depression one week after psilocybin, whereas general drug intensity did not.

Decreased brain modularity after psilocybin therapy for depression.

Research Square May 20, 2021 Richard E. Daws, Christopher Timmerman, Bruna Giribaldi et al. 11 citations

Across two clinical trials, psilocybin therapy produced robust antidepressant effects that were linked to a decrease in brain network modularity measured by resting-state fMRI. In an open-label study of 16 adults with treatment-resistant depression, Beck Depression Inventory scores dropped sharply at one week and six months, and the reduction in network modularity one day after treatment correlated with clinical improvement at six months. In a double-blind randomized trial of 43 adults with major depressive disorder, the psilocybin arm showed superior antidepressant effects at two and six weeks compared with escitalopram, and improvements correlated with decreased modularity. These convergent findings suggest that psilocybin therapy may work by reducing the brain's network modularity.

A Scoping Review of Research in Naturalistic Studies with Psychedelics.

Journal of psychoactive drugs June 28, 2025 Laura C Carvalho, Jorge Encantado, Hannes Kettner et al. 6 citations

A review of 103 naturalistic psychedelic studies found that most used cross-sectional surveys, ayahuasca was the most studied substance (66%), and ceremonial settings were the most common context (35.9%). Sample characteristics were widely reported but varied considerably, while specific contextual details like music were often missing. The authors call for systematic reporting standards to improve the value of real-world psychedelic research alongside clinical trials.