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Photo of Dr Claudia Hallett

Dr Claudia Hallett

Job title Clinical Psychologist

Areas of expertise: 

  • Depersonalisation and Derealisation Disorders
  • Anxiety and Trauma Disorders


Dr Claudia Hallett is the Clinical lead of the Depersonalisation Disorder Service, based at the Centre for Anxiety Disorders and Trauma (CADAT). As part of her role, she is responsible for the research and development of a Cognitive Behavioural model of treatment for individuals with Depersonalisation Disorder (DPD).

Dr Hallett is involved in the teaching of anxiety disorders on the Clinical Psychology Doctorate course at the IOPPN, as well as providing clinical placements and supervision for clinical psychology trainees, IAPT colleagues and MSc students.

In addition to her DPD work, Dr Hallett has a longstanding clinical and research interest in Cognitive Behavioural Therapy for perinatal anxiety, trauma and depression.

Education and Training: 

Dr Hallett received a First Class BSc (Hons) in Psychology from the University of Bristol. She started her career as a research psychologist specialising in psychosis in the Unit for Social and Community Psychiatry, a World Health Organisation Collaborating Centre operated jointly by Queen Mary University of London and East London NHS Foundation Trust. Dr Hallett completed her Doctorate in Clinical Psychology (DClinPsy) at the Institute of Psychiatry, Psychology and Neuroscience (IOPPN). Her DClinPsy research project was focused on cognitive mechanisms of change in Post Traumatic Stress Disorder (PTSD). She went on to specialise in Cognitive Behavioural Therapy (CBT) undertaking a Postgraduate Diploma in Cognitive Behavioural Therapies at the IOPPN.


Miles, S., Brown, G., Corfe, A., Hallett, C., Wingrove, J., Wheatley, J., and Veale, D (2019). Time-intensive behavioural activation for depression: A multiple baseline study. Journal of Behavior Therapy and Experimental Psychiatry, 63, 36-47 https://doi.org/10.1016/j.jbtep.2018.12.008

Hallett, C., Gupta, S., and Priebe, S. (2013). What do outpatients with schizophrenia and mood disorders want to learn about their illness? Psychiatric Services, 64 (8) https://doi.org/10.1176/appi.ps.201200382

Hallett, C., Klug, G., Lauber, C., and Priebe, S (2012). Volunteering in the care of people with severe mental illness: a systematic review. BMC Psychiatry, 12 (226) https://doi.org/10.1186/1471-244X-12-226

Book contributions

Life on Autopilot: A Guide to Living with Depersonalization Disorder. Perkins, J. Jessica Kingsley Publishers. 2021

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