Dr Claudia Hallett

BSc (Hons), DClinPsy, PgDip CBT

Dr Claudia HallettDr Claudia Hallett is the Clinical Lead of the Depersonalisation Disorder Service. She is passionate about helping to meet the needs of those with Depersonalisation Disorder (DPD), Derealisation and Feelings of Unreality through psychological therapy. Dr Hallett’s prior experience includes working with adults with anxiety, trauma and depressive disorders in the Centre for Anxiety Disorders and Trauma (CADAT), and in the Improving Access To Talking Therapies (IAPT) service in Southwark.


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 then 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.

Dr Hallett is registered with the Health Care and Professions Council (HCPC) as a Practitioner Psychologist as well as with the British Psychology Society (BPS) as a Chartered Clinical Psychologist with the Division of Clinical Psychology. She is professionally accredited as a Cognitive Behavioural Psychotherapist with the British Association of Behavioural and Cognitive Psychotherapies (BABCP).

Dr Hallett has a longstanding clinical and research interest in CBT for PTSD, and is looking forward to adding to the research literature on CBT for DPD. Other areas of clinical interest include CBT for perinatal anxiety, PTSD from traumatic birth and postnatal depression.

Other Roles

Dr Hallett is involved in the teaching of anxiety disorders on the Clinical Psychology Doctorate course at the Institute of Psychiatry, Psychology and Neuropsychiatry (IOPPN), as well as providing clinical placements and CBT supervision for IOPPN clinical psychology trainees and MSc students.


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 

Hallet, 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

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