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Chris R Brewin

Clinical, Educational & Health Psychology, University College London, London, UK.

2 papers in the library · 75 citations · publishing 2022-2025

Papers

Post-traumatic stress disorder: evolving conceptualization and evidence, and future research directions.

World psychiatry : official journal of the World Psychiatric Association (WPA) February 1, 2025 Chris R Brewin, Lukoye Atwoli, Jonathan I Bisson et al. 73 citations

The diagnosis of post-traumatic stress disorder (PTSD) has shaped understanding of trauma responses. Early diagnostic criteria and epidemiological findings, including sociocultural differences, are reviewed. Evidence shows post-traumatic reactions occur in contexts not previously defined as traumatic. Recent developments such as the DSM-5 dissociative subtype and ICD-11 complex PTSD indicate several distinct PTSD phenotypes. Psychological foundations involve disturbances to memory and identity, with a broader focus on identity accommodating group and communal influences. Biological foundations include genetic and neuroimaging studies. While prevention progress has been disappointing, psychological treatments like trauma-focused cognitive behavior therapy, EMDR, and non-trauma-focused therapies are effective. Emerging identity-based approaches and MDMA-assisted psychotherapy show promise. Adapting interventions in resource-limited settings and community-based approaches are priorities.

Multiplicity in the experience of voice-hearing: A phenomenological inquiry.

Journal of psychiatric research December 1, 2022 Chris R Brewin, Kirsty Phillips, John Morton et al. 2 citations

Voice-hearers typically report about four distinct voices, most perceived as male and with negative content. Child-aged voices are significantly less negative than other voices except those perceived as elderly. Variability in voice characteristics is greater between different voices within an individual than between different utterances of the same voice. These findings are inconsistent with cognitive models that attribute voices to misattributed inner speech and better support a dissociation model of voice-hearing. The results suggest that classifying voices by subtype or dimensional methods may be useful, and that clinical assessment should more systematically evaluate the multiplicity of voices.