Virtual reality and persecutory delusions: Safety and feasibility

Fornells-Ambrojo, Miriam; Barker, Chris; Swapp, David; Slater, Mel; Antley, Angus; Freeman, Daniel

doi:10.1016/j.schres.2008.05.013

Cited by 70 publications

(79 citation statements)

References 22 publications

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“…The Virtual Reality (VR) environment (developed by the Department of Computer Science at University College London) used in this study to assess paranoid ideation was identical to that used in previous research (Fornells-Ambrojo et al , 2008;Freeman, 2008;Valmaggia et al , 2007). The environment was designed to be perceived neutral by the majority of the general population and was a tube train ride modelled on the interior of a London Underground train carriage.…”

Section: Virtual Reality Paradigmmentioning

confidence: 99%

Perceived ethnic discrimination and persecutory paranoia in individuals at ultra-high risk for psychosis

Shaikh

Ellett

Dutt

et al. 2016

Psychiatry Research

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Despite a consensus that psychosocial adversity plays a role in the onset of psychosis, the nature of this role in relation to persecutory paranoia remains unclear.This study examined the complex relationship between perceived ethnic discrimination and paranoid ideation in individuals at Ultra High Risk (UHR) for psychosis using a virtual reality paradigm to objectively measure paranoia. Data from 64 UHR participants and 43 healthy volunteers were analysed to investigate the relationship between perceived ethnic discrimination and persecutory ideation in a virtual reality environment. Perceived ethnic discrimination was higher in young adults at UHR in comparison to healthy controls. A positive correlation was observed between perceived ethnic discrimination and paranoid persecutory ideation in the whole sample. Perceived ethnic discrimination was not a significant predictor of paranoid persecutory ideation in the VR environment. Elevated levels of perceived ethnic discrimination are present in individuals at UHR and are consistent with current biopsychosocial models in which psychosocial adversity plays a key role in the development of psychosis and attenuated symptomatology.

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Section: Virtual Reality Paradigmmentioning

confidence: 99%

Perceived ethnic discrimination and persecutory paranoia in individuals at ultra-high risk for psychosis

Shaikh

Ellett

Dutt

et al. 2016

Psychiatry Research

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“…The VR scenario was modelled on a London Underground tube train ride (developed by the Department of Computer Science at University College London), as used in previous studies (Fornells-Ambrojo et al, 2008 …”

Section: Virtual Reality Environmentmentioning

confidence: 99%

“…Psychotic symptoms can be evaluated in a more standardised way by using a Virtual Reality (VR) environment, which provides an ecologically valid and controlled setting that can elicit paranoid experiences (Freeman et al, 2005. VR environments such as a busy train carriage have been shown to induce paranoid ideation in healthy participants (Freeman et al, 2003, Green et al, 2011, people at UHR for psychosis , and individuals with persecutory delusions (Fornells-Ambrojo et al, 2008, Veling et al, 2014. The environmental stimulus is identical in all participants, and their response can be evaluated as soon as they exit the environment, maximising the likelihood of obtaining an accurate assessment of their experiences.…”

Section: Introductionmentioning

confidence: 99%

Bullying victimisation and paranoid ideation in people at ultra high risk for psychosis

Valmaggia

Day

Kroll

et al. 2015

Schizophrenia Research

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“…TCO symptoms include beliefs that others are out to harm you, that forces beyond your control affect your actions, or that your thoughts are not your own. In addition, adults with TCO symptoms show a greater disposition to misattribute hostility in others and find neutral events threatening (Fornells-Ambrojo et al, 2008;Freeman et al, 2008). As suggested in adult cognitive models linking TCO PLEs with externalising symptoms (Link et al, 1998;Mojtabai, 2006), we hypothesise that 'threat' PLEs might increase a child's risk of misattribution bias, whilst 'control-override' PLEs may reduce their ability to inhibit a restless, aggressive, or defiant response, consequently increasing the risk of externalising psychopathology (Crick and Dodge, 1994;Muris et al, 2007a,b).…”

Section: Possible Mechanisms Linking Persisting Ples With Internalisimentioning

confidence: 99%

Persisting psychotic-like experiences are associated with both externalising and internalising psychopathology in a longitudinal general population child cohort

Downs

Cullen

Barragán

et al. 2013

Schizophrenia Research

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Downs, J. (2013). Persisting psychotic-like experiences are associated with both externalising and internalising psychopathology in a longitudinal general population child cohort. Schizophrenia Research, 144(1-3), 99-104. https://doi.org/10.1016/j.schres.2012.12.009Citing this paper Please note that where the full-text provided on King's Research Portal is the Author Accepted Manuscript or Post-Print version this may differ from the final Published version. If citing, it is advised that you check and use the publisher's definitive version for pagination, volume/issue, and date of publication details. And where the final published version is provided on the Research Portal, if citing you are again advised to check the publisher's website for any subsequent corrections. General rightsCopyright and moral rights for the publications made accessible in the Research Portal are retained by the authors and/or other copyright owners and it is a condition of accessing publications that users recognize and abide by the legal requirements associated with these rights.•Users may download and print one copy of any publication from the Research Portal for the purpose of private study or research.•You may not further distribute the material or use it for any profit-making activity or commercial gain •You may freely distribute the URL identifying the publication in the Research Portal Take down policy If you believe that this document breaches copyright please contact librarypure@kcl.ac.uk providing details, and we will remove access to the work immediately and investigate your claim. Background: Persisting psychotic-like experiences (PLEs) are associated with an increased risk of internalising symptoms in adolescence. Whether this association holds similarly for externalising symptoms, and from mid-childhood, is unclear. This prospective study investigated the extent to which PLE persistence was associated with internalising and externalising psychopathology in a community sample of children aged 9-11 years at study commencement. Methods: 8099 children (mean age 10.4 years) completed questionnaires assessing PLEs, externalising and internalising symptoms. A subsample of 547 children completed reassessment, on average, two years later. Results: Two-thirds (66%) of children reported PLEs at baseline. Approximately two years later, PLEs persisted in 39% of those children. After adjustment for previous psychopathology and other potential confounds, children with persisting PLEs were at higher risk for internalising (odds ratio [OR]=1.94; 95% confidence interval [CI] 1.13-3.34) and externalising (OR=1.97; 95% CI 1.19-3.26) psychopathology than children whose PLEs remitted; and, than children who never presented PLEs. Conclusions: Persistent PLEs from mid-childhood are associated with later internalising and externalising psychopathology in the general population, whereas transitory PLEs may be part of a spectrum of normative childhood development. Interventions that target persistent PLEs may contribute to a reduction in common chi...

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Virtual reality and persecutory delusions: Safety and feasibility

Cited by 70 publications

References 22 publications

Perceived ethnic discrimination and persecutory paranoia in individuals at ultra-high risk for psychosis

Perceived ethnic discrimination and persecutory paranoia in individuals at ultra-high risk for psychosis

Bullying victimisation and paranoid ideation in people at ultra high risk for psychosis

Persisting psychotic-like experiences are associated with both externalising and internalising psychopathology in a longitudinal general population child cohort

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