Our staff and accreditations


All our clinical staff are experienced Consultant Psychologists, Consultant Psychotherapists and Specialist Counsellors/Therapeutic Support Workers and have extensive experience of working with complex trauma and dissociation. Many have completed advanced training in these areas and most are members of the International Society for the Study of Trauma & Dissociation (ISSTD) and its European counterpart, the ESTD. We have eight current SCID-D trained national assessors for the specialist assessment and diagnosis of the dissociative disorders.

All staff are fully DBS checked (enhanced) for work with vulnerable people.


Our clinical staff are fully trained and accredited mental health professionals, whose memberships include the following accrediting bodies:

  • British Psychoanalytic Council (BPC)
  • United Kingdom Council for Psychotherapy (UKCP)
  • British Association for Counselling & Psychotherapy (BACP)
  • Health and Care Professions Council (HCPC)
  • The Association of Child Psychotherapists (ACP)

Clinical psychotherapeutic and management staff are also full members of a variety of professional organisations including:

  • British Psychological Society
  • Institute of Psychoanalysis,
  • Tavistock Society of Psychotherapists
  • Royal College of Psychiatrists
  • British Association for Music Therapy

The core clinical team staff

The core clinical staff at the Clinic for Dissociative Studies have all had a psychoanalytically or psychodynamically orientated training. The Clinic additionally engages around 30 Consultant Psychotherapists and therapeutic support staff who work from the Clinic’s London base and across a variety of locations all over the UK, seeing Clinic patients under the management oversight of the core team.

Our specialist Consultant Clinic Psychotherapists come from various UK psychotherapy trainings across the country, according to the clinical needs of each patient. Different theoretical models include psychoanalytic / psychodynamic, person-centred, art, music and play psychotherapy and sensori-motor therapy.

Dr Rachel Thomas
Clinical Lead and Director

BA(Hons), BSc(Hons), PGCE,
DClinPsych, TQAP – Clinical

Dr Rachel Thomas is a Consultant Clinical Psychologist and Adult Psychoanalytic Psychotherapist.  She is an Associate Fellow of the British Psychological Society (AfBPsS) and registered with the HCPC and British Psychoanalytic Council. She is also an SCID-D National Assessor. She has worked as a Child and Adolescent and Adult Clinical Psychologist in the NHS since 2000 and as an Adult Psychoanalytic Psychotherapist in the NHS, voluntary sector and private practice since 2005.  From 2008-13 she was the Clinical Services Co-ordinator of the Women’s Therapy Centre, London.  She was also a Consultant Psychologist and Adult Psychotherapist at the Tavistock Clinic from 2009-13 and Research Clinician for the Tavistock Adult Depression Study, a major Randomised Control Trial of psychoanalytic psychotherapy for refractory adult depression.  She has specialised in the area of complex trauma since 1993, particularly working with survivors of childhood sexual abuse and domestic violence.

She is a qualified teacher and teaches and supervises widely in the areas of psychoanalytic psychotherapy, complex trauma and dissociation. She is a member of both the International Society for the Study of Trauma and Dissociation (ISSTD) and the European Society (ESTD) and has also worked extensively as an Expert Witness in court cases since 2002.

She has written and published in the areas of refractory adult depression and complex trauma. She is a SCID-D trained national assessor.

Mr Graeme Galton
Senior Consultant

BA, MA, UKCP Registered

Graeme Galton is a Consultant Psychoanalytic Psychotherapist and supervisor at the Clinic for Dissociative Studies.

He also works in private practice in London and teaches on the clinical training programme at The Bowlby Centre, where he is a registered member. He is an approved supervisor with the UK Council for Psychotherapy.

Graeme previously worked for 16 years in the National Health Service as a psychotherapist and supervisor in an outpatient psychotherapy service.

He edited “Touch Papers: Dialogues on Touch in the Psychoanalytic Space” (Karnac, 2006), as well as co-editing “Forensic Aspects of Dissociative Identity Disorder” with Adah Sachs (Karnac, 2008).  He is a SCID-D trained national assessor.

Ms Nancy Borrett
Consultant Psychotherapist

Reg MBACP Accred, HCPC Reg
Consultant Psychotherapist

Nancy Borrett is a counsellor, psychotherapist and music psychotherapist. She practises as a psychodynamic and integrative practitioner.

She has worked extensively with a variety of patient groups including children, adolescents and adults with learning disabilities and severe and enduring mental health problems in both the NHS and in private practice.

She has extensive experience of working with complex trauma and is additionally a trained Trauma-Focussed CBT psychotherapist and EMDR (Eye Movement Desensitisation and Re-processing) clinician. She is a SCID-D trained national assessor and a full member of the ESTD.

Clinic administrative, business and support staff

Annabel Horne, Operations Director

Annabel Horne has a degree in business and finance and is also a qualified occupational therapist. She is responsible for the daily running of the Clinic’s administration and finances

Leigh Loughran, Senior Administrator

Leigh Loughran is an experienced administrator and may be your first point of contact when phoning the Clinic.

Michael Curtis, Finance Officer

Specialist consultants and patrons

Dr Valerie Sinason, Founder and Consultant


Dr Valerie Sinason is an adult psychoanalyst and adult and child psychotherapist, specialising in disability, trauma and abuse. She is registered with the BPC, ACP and UKCP and is also an SCID-D National Assessor. She established the Clinic for Dissociative Studies in 1998, and retired as its Director in December 2016.

She is president of the IPD (Institute of Psychotherapy and Disability), patron of the Dorchester Trust and the Centre for Action on Rape and Abuse, Honorary Consultant Psychotherapist to the University of Cape Town’s Child Guidance Clinic and is acting chair of trustees of the Nieu Bethesda Arts Foundation and a council member for Norwood.

Dr Abby Seltzer, Consultant Psychiatrist


Dr Abby Seltzer is an independent Consultant Psychiatrist with over 30 years’ experience. For the last 16 years, she has specialised in the diagnosis and treatment of PTSD, complex trauma and dissociative disorders. She is a member of ETSS and ESTD and is trained in EMDR and sensorimotor psychotherapy. She provides expert psychiatric consultation to the Clinic and works in conjunction with the core Clinic team and local NHS Consultant Psychiatrists in the diagnosis and clinical management of our patients.

Dr Georgina Parkes, Consultant Psychiatrist

Dr Georgina Parkes is an independent Consultant Psychiatrist, specialising in intellectual disability.

Clive Driscoll, Police Liaison Consultant

Clive Driscoll is a former DCI with the Met Police, whose investigation led to the conviction of two of the men who murdered Stephen Lawrence and successful convictions in the “honour killing” of Surjit Athwal.

Sir Richard Bowlby, Patron

Sir Richard Bowlby is a longstanding supporter of the Clinic and is studying the work of his father, John Bowlby, the pioneer researcher on the impact of early attachment relationships between parents and their young children.

Professor John Morton, Patron

Professor John Morton conducts memory research on amnesia between alter-personalities at the Clinic for Dissociative Studies and elsewhere.