Peter Langdon


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Personal profile


Peter is a Professor within the Centre for Educational Development, Appraisal and Research at the University of Warwick.  He has held in excess of £6 million in competitive grant and fellowship income.  These projects include a randomised control trial of group cognitive behavioural therapy for people with Asperger Syndrome and high functioning autism who also have problems with anxiety (PAsSA Trial), and more recently, and together with colleagues, an HTA funded randomised control trial of EMDR for people with intellectual disabilities (Trauma-AID), and an HTA funded randomised control trial of sertraline for the treatment of anxiety disorders in autistic adults (STRATA), as well as an NIHR funded study examing hospital carepathways for adults with autism detained in hospital (mATCH Study).

Recent Grants

National Institute for Health Research - Health Technology Assessment, 2021 to 2023. Behavioural interventions to treat anxiety in adults with autism with moderate to severe intellectual disabilities (BEAMS-ID). Chief Investigator: Professor Peter Langdon. £197341.71.

National Institute for Health Research - Health Technology Assessment, 2021 to 2023. Specific phobias in children with learning disabilities (SPIRIT): An adaptation and feasibility study. Chief Investigator: Professor Kylie Gray. Co-applicant: Professor Peter Langdon. £199992.90

Youth Endowment Fund, 2019 to 2022 - REducing the risk of criminal exploitation using multi-SystEmic Therapy (RESET Study). Chief Investigator: Professor Peter Langdon. £299728.00

National Institute for Health Research - Health Services and Delivery Research
Mapping and evaluating services for children with learning disabilities and behaviours that challenge (MELD). Chief Investigator: Professor Richard Hastings. Co-Applicant: Professor Peter Langdon £1,245,271.00

National Institute for Health Research - Health Technology Assessment, 2019 to 2021- A multicentre double-blind placebo-controlled randomised trial of SerTRaline for AnxieTy in adults with Autism (STRATA) Chief Investigator: Dr Dheeraj Rai. Co-Applicant: Professor Peter Langdon. £1,669,262.68 (+ AUD $557,029.40 by NHMRC Australia to Leonard H, Starkstein S & Glasson E for Perth centre)

National Institute for Health Research - Health Technology Assessment, 2019-2022 - Eye movement desensitisation and reprocessing for symptoms of post-traumatic stress disorder in adults with intellectual disabilities (Trauma-AID). £1,258,097.68. Chief Investigator: Professor Paul Willner. Co-Applicant and Deputy Chief Investigator: Professor Peter Langdon 

National Institute for Health Research - Research for Patient Benefit, 2019-2022 - Making positive moves: What support do people with Learning Disabilities need to remain living in the community after moving under the Transforming Care Programme. A qualitative longitudinal study. Chief Investigator: Dr Louisa Roades.  Co-Applicant: Professor Peter Langdon.  £350,000 

Nuffield Foundation - 2018 to 2021- Development of an assent-based process for the inclusion of adults with impairments of capacity and/or communication in ethically sound research.  Chief Investigator:  Dr Karen Bunning. Co-Applicant: Professor Peter Langdon.  £378,204

National Institute for Health Research - Health Service and Delivery Research, 2017 to 2020 - Clinical and cost effectiveness of intensive support teams for adults with intellectual disabilities and challenging behaviour. Chief Investigator: Professor Angela Hassiotis. Co-applicant: Professor Peter Langdon. £763,483.97

Royal College of Psychiatrists and Health Education England 2016 - A systematic review of initiatives to reduce or close inpatient services for people with intellectual disabilities. £15,000

National Institute for Health Research - Research for Patient Benefit, 2015-2018. People with autism detained within hospitals: defining the population, understanding aetiology, and improving care pathways. £350,000.00


Professor Peter Langdon completed his undergraduate degree in psychology at Memorial University of Newfoundland.  He was awarded a Lord Rothermere Fellowship and qualified as a clinical psychologist in 2000 from the Institute of Psychiatry, King’s College, London.  He completed his PhD at the Tizard Centre, University of Kent as an NIHR Research Fellow.  He then completed an NIHR funded postdoctoral fellowship.  He has worked within secure mental healthcare services for offenders with intellectual and developmental disabilities for twenty years.  His research interests fall broadly within the area of developmental psychology and include the adaptation and evaluation of psychological therapies for people with intellectual and developmental disabilities.  He is a non-medical approved clinician as defined with the Mental Health Act.  He is registered as both a clinical and forensic psychologist, and is Honorary Associate Director of Research for Worcestershire Health and Care NHS Trust. 

External Activities

  • Associate Editor: Behavioural and Cognitive Psychotherapy
  • Editor-in-Chief: Journal of Applied Research in Intellectual Disabilities
  • Associate Editor: the Cognitive Behavioural Therapist
  • Trustee, Asperger East Anglia, Registered Charity No. 1074699
  • Advisory Group Panel Member, Quality Network for Inpatient Learning Disability Services, Royal College of Psychiatrists.
  • Panel Member, Transforming Care Stakeholder Roundtable, Mental Health, Dementia and Disabilities Directorate, Department of Health.
  • Chair, Mental Health and Challenging Behaviour Special Research Interest Group, International Association for the Scientific Study of Intellectual and Developmental Disabilities.

Areas of Expertise

Intellectual disabilities and vulnerable adults; sex offenders; forensic psychology.

Teaching Interests

My current PhD Students are:

Ms Verity Chester

Academic Background

Educational and Professional Qualifications 

  • BSc (Hons) (Memorial)
  • DClinPsy (London)
  • PhD (Kent)
  • AFBPsS 
  • CPsychol

Current Address

Centre for Educational Development, Appraisal and Research, New Education Building, Westwood Campus, University of Warwick, Coventry CV4 8UW  email:

Key Research Interests and Expertise

  • Neurodevelopmental disorders
  • Developmental psychology 
  • Attribution theory and expressed emotion
  • Forensic mental health
  • Psychological therapies with people who have neurodevelopmental disorders
  • Clinical trials with special populations


Research Group Membership

Peter is the co-convenor of RADiANT (ReseArch in DevelopmentAl  NeuropsychiaTry) together with Dr Regi Alexander, Hertfordshire Partnership University NHS Foundation Trust.  RADiANT is a consortium of NHS service providers which works in collaboration with academics in a number of universities. It seeks advice from service users, patients, families, charities, community leaders and a range of statutory bodies and organisations. RADiANT focuses on mental health and behavioural issues associated with five developmental conditions- Intellectual Disability (ID), Autistic Spectrum Disorders (ASD), Attention Deficit Hyperactivity Disorder (ADHD), Epilepsy (EPI) and Acquired Brain Injury (ABI). It is hosted by Hertfordshire Partnership University NHS Foundation Trust (HPFT).

Expertise related to UN Sustainable Devlopment Goals

In 2015, UN member states agreed to 17 global Sustainable Development Goals (SDGs) to end poverty, protect the planet and ensure prosperity for all. This person’s work contributes towards the following SDG(s):

  • SDG 3 - Good Health and Well-being
  • SDG 16 - Peace, Justice and Strong Institutions


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