The British Journal of Psychiatry (2007) 191: s63-s68. doi: 10.1192/bjp.191.51.s63
© 2007 The Royal College of Psychiatrists
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Virtual reality and paranoid ideations in people with an ‘at-risk mental state’ for psychosis

LUCIA R. VALMAGGIA, PhD

Department of Psychological Medicine and OASIS, Institute of Psychiatry, King’s College London and Department of Psychiatry and Neuropsychology, Maastricht University, Maastricht, the Netherlands

DANIEL FREEMAN, PhD, CATHERINE GREEN, PhD and PHILIPPA GARETY, PhD

Department of Psychology, Institute of Psychiatry, King’s College London

DAVID SWAPP, MSc and ANGUS ANTLEY, MSc

Department of Computer Science, University College London

CORINNE PRESCOTT, BA

Department of Psychological Medicine and OASIS, Institute of Psychiatry, King’s College London

DAVID FOWLER, PhD

School of Medicine, Health Policy and Practice, University of East Anglia, Norwich, UK

ELIZABETH KUIPERS, PhD

Department of Psychology, Institute of Psychiatry, King’s College London

PAUL BEBBINGTON, MD, PhD

University College London, Department of Mental Health Sciences, London and Camden and Islington Mental Health and Social Care NHS Trust, London

MEL SLATER, MD

Department of Computer Science, University College London and ICREA-Virtual Reality Centre of Barcelona, Universitat Politècnica de Catalunya, Spain

MATTHEW BROOME, DSc and PHILIP K. McGUIRE, MD, PhD

Department of Psychological Medicine and OASIS, Institute of Psychiatry, King’s College London, London, UK

Correspondence: Lucia R.Valmaggia, PhD, Department of Psychological Medicine, PO 67, Institute of Psychiatry, De Crespigny Park, London SE5 8AF, UK. Email: L.Valmaggia{at}iop.kcl.ac.uk

Declaration of interest None.

Background Virtual reality provides a means of studying paranoid thinking in controlled laboratory conditions. However, this method has not been used with a clinical group.

Aims To establish the feasibility and safety of using virtual reality methodology in people with an at-risk mental state and to investigate the applicability of a cognitive model of paranoia to this group.

Method Twenty-one participants with an at-risk mental state were assessed before and after entering a virtual reality environment depicting the inside of an underground train.

Results Virtual reality did not raise levels of distress at the time of testing or cause adverse experiences over the subsequent week. Individuals attributed mental states to virtual reality characters including hostile intent. Persecutory ideation in virtual reality was predicted by higher levels of trait paranoia, anxiety, stress, immersion in virtual reality, perseveration and interpersonal sensitivity.

Conclusions Virtual reality is an acceptable experimental technique for use with individuals with at-risk mental states. Paranoia in virtual reality was understandable in terms of the cognitive model of persecutory delusions.




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