After qualifying as a Clinical Psychologist from Surrey in 1980 I worked in London and the South East in various clinical and academic posts. I worked as a Consultant Clinical Psychologist and Specialist Lead for many years in several NHS mental health services in London providing treatments for addiction problems and I continue to practice as an independent consultant. My work has focused on the psychology of addictions, adult mental health and older adults and I provides training courses both in the UK and abroad on treatment interventions. I have held a number of national advisory roles within health and criminal justice bodies working on policy and guidelines development. I've been associated with Clinical Psychology training and examining at various UK Universities and I re-joined the training programme at Surrey in 2010.
Current and future research includes caring for older adults and their carers, interventions in problem alcohol and drug misuse, neuropsychology and addiction, shame and guilt as both relapse triggers and protective factors for abstinence as well as problem alcohol use in older age.
I collaborate with colleagues at University College London, Kings College London and have held several UK multicentre research grants incorporating a number of NHS Trusts.
Responsible for Adults in Later Life Unit, and Addictions Teaching, Psych D in Clinical Psychology.
Research supervisor for the Psych D in Clinical Psychology
Academic Integrity Officer, Department for Psychological Practice and Intervention
Health and Care Professions Council, PYL03467, October 2010; Ends 31 May 2018.
BPS Registered Applied Psychology Practice Supervisor. Ends 31 December 2020.
External reviewer NIHR and External Examiner for UEL Doctorate Course in Clinical Psychology
Associate Fellow, BPS.
Member of DCP.
Member of the DCP Faculty of Addiction Committee.
Member of BABCP and the Society for the Study of Addiction.
Davis, P.E. (2012) Working with substance misuse in the context of mental health problems. Symposium Chair and Convenor, BPS Division of Clinical Psychology Annual Conference. University of Oxford, December 2012.
Davis, P.E. (2011) Behavioural Couples Therapy for substance misuse. Invited speaker at BPS Faculty of Addiction Study Day, London
Davis, P.E. (2010) Contingency Management with Substance Misusers. Invited speaker at BPS Faculty of Addiction Study Day, London
Davis, P.E. (2007) Contingency Management with Drug Users. Invited paper at Seventh Annual Conference of CARES (Centre for Addiction Research and Education Scotland), University of Dundee, June 2007.
Davis, P.E. (2005) Delivering Cognitive Behavioural Therapies in Substance Misuse Services. Invited paper presented at the Second Annual Conference of SCAN, Royal College of Psychiatrists and Dept of Health, September 2005
Davis, P.E. (2004) Psychological Interventions in the Treatment of Problem Alcohol and Drug Use. Invited paper presented at the Inaugural Conference of SCAN, Royal College of Psychiatrists and Dept of Health, September 2004
Davis, P.E. and Drummond, C. (2004) CBT in the Treatment of Opiate Misusers in Methadone Maintenance Programmes: An Overview and Results from the UKCBTMM Trial. Symposium organiser, chair and discussant with Abstracts published in Conference Proceedings, European Association for Behavioural and Cognitive Psychotherapies Annual Conference, University of Manchester Institute of Science and Technology, Manchester, September 2004
Davis, P.E. (2004) Overview and design of the UKCBT Trial in Methadone Maintenance Programmes. Paper presented at the European Association for Behavioural and Cognitive Psychotherapies Annual Conference, University of Manchester Institute of Science and Technology, Manchester, September 2004. Abstract published in Conference ProceedingsDavis, P E. (2003) Cognitive-Behavioural Relapse Prevention with Alcohol and Drug Users. Trastornos Adictivos, 5(2), p139. Abstract of invited paper presented at the European Congress of Addictive Disorders, Sociedad Espanola de Toxicomanias, Alicante, Spain, March 2003.
Davis, P.E., (2002) Won't Stop Can't Stop: A review of Cognitive-Behavioural Relapse Prevention in the treatment of addictive behaviours. Behavioural Pharmacology, 13, (Nos 5&6), p480. Abstract of invited paper presented at the European Behavioural Pharmacology Society and British Association for Behavioural Pharmacology Annual Conference, “New Advances in the Understanding and Treatment of Addiction”, University of Sussex, Brighton, UK, September 2002.Finch, E., Campbell, A., Davis, P. and Brotchie, J. (2006) The International Treatment Effectiveness Project: Evaluation of Training for Drug Workers in Psychological Treatment Interventions. Paper presented at the Society for the Study of Addiction Annual Conference, York, October 2006. Abstract published in Addiction Biology, January 2007. Reviewed by the conference scientific panel
Love, B, Davis, P and Vetere, A (2015) The cycle of relapse and recovery of community based drug misusing offenders: The impact of childhood, trauma, relationships & psychological health. Presented at the Society for the Study of Addiction Annual Conference, York, Nov 2015.
Love, B, Davis, P and Vetere, A (2015) The cycle of relapse and recovery of substance misusing offenders on a community rehabilitation management programme (The impact of childhood, trauma, relationships & psychological health) Presented at BPS Division of Forensic Psychology Annual Conference, July 2015.
Love, B, Davis, P and Vetere, A (2016) Relapse and recovery of substance misusing offenders: The impact of childhood, trauma, relationships & psychological health. Presented at the Society for the Study of Addiction Annual Conference, York, Nov 2016.
Nunn, K and Davis P (2014) Journeys through Rehabilitative Dance for Five Male Young Offenders: An Interpretive Phenomenological Analysis. Presented at the BPS Faculty for Children, Young People and their Families Annual Conference, Cambridge.
Sawer, F., Gleeson, K and Davis P. (2016) The Role of Shame in Alcohol dependence; Narratives from those in Recovery. Presented at the Society for the Study of Addiction Annual Conference, York, Nov 2016 and in preparation for submission to the journal Addiction.
Trigeorgis, C. And Davis, P (2013) An investigation of the relationship between shame and substance use: Aggression, disclosure and self-related constructs in clients with drug dependence. Presented at the Society for the Study of Addiction Annual Conference, York, Nov 2013.
Turton, E., MacDonald, B. And Davis P. (2013) A brief model of CBT appropriate for acute care. Paper presented at British Association for Cognitive and Behavioural Psychotherapy Annual Conference, July 2013.
Kouimtsidis, C., Reynolds, M., Drummond, C., Davis, P. and Tarrier, N. (2007) Cognitive-Behavioural Therapy in the Treatment of Addiction: A Treatment Planner for Clinicians. John Wiley & Sons, England. Published July, 2007.Davis, P, Patton, R and Jackson, S. (2017) (Eds) Addiction: Psychology and Treatment. To be published by Wiley, April 2017.
Journal articles from last ten years
Abou-Saleh, M., Davis, P., Rice, P., Checinski, K., Drummond, C., Maxwell, D., Godfrey, C., John, C., Corrin, B., Tibbs, C., Oyefeso, A., DeRuiter, M., and Ghodse, A.H. (2008) The effectiveness of behavioural interventions in the primary prevention of Hepatitis C amongst injecting drug users: a randomised controlled trial and lessons learned. Harm Reduction Journal, 5:25doi:10.1186/1477-7517-5-25
Battistella, S., Constantinou, N., Morgan, C., Davis, P., O'Ryan, D. and Curran, H.V. (2012) Semantic priming and verbal learning in current opiate users, ex-usersand non-user controls. Human Psychopharmacology: Clinical and Experimental. 27, 499-506.
Campbell, A., Finch, E., Brotchie, J. and Davis, P. (2007) The International Treatment Effectiveness Project: Implementing psychosocial interventions for adult drug misusers. NTA Research Briefing. www.nta.nhs.uk
Clair, J., Martin, L., Bond,A.J., O'Ryan, D., Davis, P. and Curran, H.V. (2009) An experimental study of aggressive and neutral interpretative bias in opiate-dependent and opiate-abstinent men. Journal of Psychopharmacology, 23(4), 428-435.
Constantinou, N., Morgan, C., Battista, S., O'Ryan, D., Davis, P. and Curran, H.V. (2010) Attentional bias, inhibitory control and acute stress in current and former opiate addicts. Drug and Alcohol Dependence, 109, 220-5
Davis, P. (2009) Brief Interventions with Problem Drinkers in Acute General Hospital Settings: A Treatment Manual. National Treatment Agency Psychosocial Interventions Resource Library. www.nta.nhs.uk
Davis, P. (2009) Brief Interventions with Young People: A Treatment Manual. National Treatment Agency Psychosocial Interventions Resource Library. www.nta.nhs.uk
Davis, P. (2010) Clinical conundrums: the clinical psychologist's response. SCAN (Specialist Clinical Addiction Network) Newsletter, 6(4), 10-11.
Davis, P. (2016) Guest Editor for the BPS Clinical Psychology Forum Special Edition on Addictions, February, 2016Davis, P. and Abou-Saleh, M. (2008) Developing an Enhanced Counselling Intervention for the Primary Prevention of Hepatitis C amongst injection drug users. Addictive Disorders and Their Treatment, 7(2), 65-75, June 2008.
Davis, P, Kemp, R and Mitcheson, L (2016) Within and between: understanding and treating addiction problems in diverse clinical settings. BPS Clinical Psychology Forum Special Edition on Addictions, February, 2016
Dunn, J., Robertson, D., Davis, P., Khosrawan, B & Christian, S. (2006) Setting Up a Methadone Maintenance Clinic in a Hostel in London's West End. Psychiatric Bulletin Vol 30, 337-339.
Groves, P., Pick, S., Davis, P., Cloudsley, R., Cooke, R., Forsythe, M. and Pilling, S. (2009) Routine alcohol screening and brief interventions in general hospital in-patient wards: Acceptability and barriers. Drugs Education, Prevention and Policy, May 2009.
Jeffries, F. And Davis, P. (2013) What is the Role of Eye Movements in Eye Movement Desensitization and Reprocessing (EMDR) for Post-Traumatic Stress Disorder (PTSD)? A Review. Behavioural and Cognitive Psychotherapy, May 2013, 41/3, pp 290-300.
Kambamettu, C., Llewellyn, E., Longley, M. And Davis, P. (2010) Tackling problem drinking in an NHS alcohol service. Psychologist 23 (10), 818-19
National Collaborating Centre for Mental Health (2008) Drug Misuse: Opioid Detoxification. The NICE Guideline. Published by The British Psychological Society and The Royal College of Psychiatrists, National Clinical Practice Guideline Number 52.
Martin, L., Louise, Clair, J., Davis, P., O'Ryan, D., Hoshi, R. And Curran, H.V. (2006) Enhanced recognition of facial expressions of disgust in opiate users receiving maintenance treatment. Addiction, 101, 1598-1605.
Passetti F, Clark L, Davis P, Mehta MA, White S, Checinski K, King M, Abou-Saleh M (2011), Risky decision-making predicts short-term outcome of community but not residential treatment for opiate addiction. Implications for case management. Drug and Alcohol Dependence, Vol 116 pp12-18.Sherratt, K., Hoshi, R., Offord, E., Davis, P. and Dunn, J. (2008) Treatment works: outcome evaluation of a methadone maintenance drug treatment service. Clinical Psychology Forum, British Psychological Society, March 2008.
Whicher, E.V., Utku, F., Schirmer, G., Davis, P. And Abou-Saleh, M. (2012) Pilot project to evaluate the effectiveness and acceptability of single-session brief counselling for the prevention of substance misuse in pregnant adolescents. Addictive Disorders and their Treatment, Vol 11 (Issue 1), 43-49.
Other relevant publications
Birke, SA, Edelman, RJ and Davis, PE (1990) An analysis of the abstinence violation effect in a sample of illicit drug users. Br J Addict. 1990 Oct;85(10):1299-307.
Davis, P. (1996) From Toads to Toddies: An Overview of Addictive Behaviour. Chapter in Bonner, E. and Waterhouse, J (Eds.) Addictive Behaviour: Molecules to Mankind. Perspectives on the Nature of Addiction. MacMillan Press, London.
Davis, P. (1996) Cognitive and Behavioural Approaches to Changing Addictive Behaviour. Chapter in Bonner, E. and Waterhouse, J (Eds.) Addictive Behaviour: Molecules to Mankind. Perspectives on the Nature of Addiction. MacMillan Press, London.
Davis, P., Abou-Saleh, M. and Rubel, B. (2002) Stay Safe Therapy (SST) Programme for the Prevention of Hepatitis C Therapy Manual. A Clinical Research Guide for Therapists Treating Injecting Drug Users At Risk of Hepatitis C. ECPHC (The Efficacy of Enhanced Counselling in the Prevention of Hepatitis C Among Injecting Drug Users: a Randomised Controlled Trial) Project. Published by St. George's Hospital Medical School, London
Davis,P., Liddiard, H. and McMillan, T. (2002) Neuropsychological deficits and opiate abuse. Drug and Alcohol Dependence, 67, 105-108.
Giovazolias, T and Davis, P (2005) Matching therapeutic interventions to drug and alcohol abusers' stage of motivation: The clients' perspective. Counselling Psychology Quarterly, 18, 171-182.
Giovazolias, T and Davis, P (1999) Power imbalance and sexual contact in therapy:effects on clients and implications for ethical, legal and training issues Counselling Psychology Review 05/1999 14(2), 4-14
Murakami A, Edelmann RJ, Davis PE. (1996) Interrogative suggestibility in opiate users. Addiction 91(9):1365-73.
Sperlinger, D., Davis, P and Wanigaratne, S. (2003) Measuring treatment outcomes with drug misuse clients. Research and guidance booklet published by the British Psychological Society, Leicester.
UKCBTMM Project Group (Drummond, C., Kouimtsidis, C., Reynolds, M., Russell, I., Godfrey, C., McCusker, M., Coulton, S., Parrott, S., Davis, P. and others (2005) The effectiveness and cost-effectiveness of cognitive-behaviour therapy for opiate misusers in methadone maintenance treatment: A multicentre, randomised controlled trial. UKCBTMM Study: United Kingdom Cognitive Behaviour Therapy Study In Methadone Maintenance Treatment. Drugs Education, Prevention and Policy, Vol 12 (Supplement 1) 68-76.
Wanigaratne, S. Davis, P., Pryce, K. and Brotchie, J. (2005) The effectiveness of psychological therapies on drug misusing clients. National Treatment Agency Research Briefing No. 11. www.nta.nhs.uk