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Victoria Williamson

King's Centre for Military Health Research, King's College London, London, UK.

5 papers in the library · 26 citations · publishing 2024-2025

Papers

Trauma-Informed Care in Psychedelic Therapy Research: A Qualitative Literature Review of Evidence-Based Psychotherapy Interventions in PTSD and Psychedelic Therapy Across Conditions.

Neuropsychiatric disease and treatment January 1, 2024 Nadav Liam Modlin, Michael Creed, Maria Sarang et al. 18 citations

Patients with post-traumatic stress disorder (PTSD) often find standard psychotherapies burdensome and drop out. Psychedelic therapy (PT) shows promise for difficult-to-treat conditions, but trials of classical psychedelics for PTSD are lacking. This systematic review of 40 qualitative studies (26 on evidence-based psychotherapies for PTSD, 14 on PT for various conditions) found overlapping themes: both therapies involve key mechanisms of change, require psychological safety and readiness, and can burden patients. In PT, indirect trauma processing and reorganization of self-narratives emerged as unique themes. Trauma-informed care may improve safety and acceptability of PT research.

Participants’ Experience of Psychedelic Integration Groups and Processes: A Qualitative Thematic Analysis

Psychedelic Medicine November 26, 2024 Nadav Liam Modlin, Tyler McPhee, Nira Zazon et al. 5 citations

People who use psychedelics and attend integration groups report that these groups provide essential community support and help process psychedelic experiences, but also face challenges such as managing group dynamics and ensuring facilitators are adequately trained. Three main themes emerged: reasons for attending, utility of the groups, and adverse factors affecting experience. While integration groups can reduce some risks of unregulated psychedelic use, research is needed to develop standardized protocols and facilitator training to improve their safety and effectiveness.

Investigational psilocybin treatment for post-traumatic stress disorder: a qualitative study of participant experience, trauma engagement, and differences from standard treatment.

EClinicalMedicine December 1, 2025 Nadav Liam Modlin, Victoria Williamson, Guy M Goodwin et al. 2 citations

Psilocybin treatment for post-traumatic stress disorder, when delivered with standardized preparation and support, may allow patients to engage with trauma-related material indirectly through affective, somatic, and self-transcendent experiences, such as feelings of unity or dissolution of self, rather than requiring direct confrontation with traumatic memories as in standard therapies. This qualitative study, nested within a phase 2 trial involving 21 adults with PTSD, identified four core themes: non-pharmacological factors for psychological safety and trust, the experiential nature of psilocybin treatment, engagement with trauma-related material, and comparative reflections on prior therapies. The findings suggest psilocybin offers a meaningful therapeutic opportunity, but larger controlled studies are needed.

Clinical conceptualisation of PTSD in psilocybin treatment: disrupting a pre-determined and over-determined maladaptive interpretive framework

Therapeutic Advances in Psychopharmacology June 8, 2025 Nadav Liam Modlin, Victoria Williamson, Carolina Maggio et al. 1 citation

PTSD is a common and debilitating condition that current treatments only partially address. This review examines psilocybin, a classical psychedelic, as a potential therapeutic agent. It synthesizes recent literature on psychedelic therapies for trauma-related conditions, including treatment-resistant depression and end-of-life anxiety. The authors propose a conceptual framework viewing PTSD as a maladaptive interpretive framework that psilocybin may disrupt through its psychopharmacological properties and subjective effects. A clinical narrative illustrates this process. Recommendations emphasize rigorous, trauma-informed protocols for safe administration in medical research settings.

Perspectives on Trauma Treatment, Self-Management Strategies, and Attitudes Toward Psychedelic Therapies in Individuals with Psychological Trauma Symptoms

Psychiatry and Clinical Psychopharmacology August 14, 2025 Nadav Liam Modlin, Jessica L. Maples‐keller, Maria Sarang et al.

Among 873 people who reported trauma symptoms or a PTSD/CPTSD diagnosis, 94.8% had experienced psychological trauma and 73.4% had a formal diagnosis. Many had tried multiple medications and psychotherapies but were highly dissatisfied. Significant numbers used marijuana, psychedelics, or MDMA on their own to manage symptoms, with few physical or psychological complications. After learning about MDMA and psilocybin therapies, willingness to try them was high (0.81 and 0.83, respectively). Women and heterosexual individuals showed lower willingness, while younger and more educated respondents were more willing. The findings point to a need for further clinical research and public education about risks and harm reduction.