Psychopathology
2026
Elisavet Pappa, Nichola Raihani, Vaughan Bell
Delusions frequently involve strong beliefs about, or interactions with, illusory social agents. Although such agents have been systematically described in hallucinations, few studies have investigated their nature and identity in delusions. We identified 205 electronic mental health records describing the content of delusions from the Clinical Record Interactive Search platform at South London...
Cognitive Neuropsychiatry
April 10, 2022
Prabitha Urwyler, Marieke Begemann, Vaughan Bell
Hallucinations are deeply intriguing phenomena but conducting research on them can be challenging. Ineffable experiences can test the limits of traditional research methods and can rely on individu...
bioRxiv (Cold Spring Harbor Laboratory)
December 19, 2019
J.M. Barnby, Vaughan Bell, Quinton Deeley et al.
4 citations
preprint
Abstract Altered dopamine transmission is thought to influence the formation of persecutory delusions. However, despite extensive evidence from clinical studies there is little experimental evidence on how modulating the dopamine system changes social attributions related to paranoia, and the salience of beliefs more generally. 27 healthy male participants received 150mg L-DOPA, 3mg...
Schizophrenia Bulletin
August 8, 2018
Tanya M Luhrmann, Ben Alderson-Day, Vaughan Bell et al.
74 citations
That trauma can play a significant role in the onset and maintenance of voice-hearing is one of the most striking and important developments in the recent study of psychosis. Yet the finding that trauma increases the risk for hallucination and for psychosis is quite different from the claim that trauma is necessary for either to occur. Trauma is often but not always associated with...
Clinical psychological science : a journal of the Association for Psychological Science
June 20, 2017
Vaughan Bell, K. Mills, G. Modinos et al.
Poletti, Gebhardt, Krueger, and Raballo (2017) raise the important issue of a careful phenomenological approach in understanding the experience of psychosis in their helpful commentary on our recent article (Bell, Mills, Modinos, & Wilkinson, 2017). To summarize their main concern, they argue that the breadth of subjective and intersubjective experience in psychosis cannot be reduced to...
Cortex; a journal devoted to the study of the nervous system and behavior
April 1, 2014
Quinton Deeley, David A Oakley, Eamonn Walsh et al.
75 citations
Involuntary movements occur in a variety of neuropsychiatric disorders and culturally influenced dissociative states (e.g., delusions of alien control and attributions of spirit possession). However, the underlying brain processes are poorly understood. We combined suggestion and fMRI in 15 highly hypnotically susceptible volunteers to investigate changes in brain activity accompanying...
PLoS One
2013
Quinton Deeley, Eamonn Walsh, David A Oakley et al.
48 citations
The feeling of voluntary control and awareness of movement is fundamental to our notions of selfhood and responsibility for actions, yet can be lost in neuropsychiatric syndromes (e.g. delusions of control, non-epileptic seizures) and culturally influenced dissociative states (e.g. attributions of spirit possession). The brain processes involved remain poorly understood. We used suggestion and...