Journal Article


Richard Bentall
Ask Elklit
Mogens Christoffersen
Philip Hyland
Mark Shevlin
Jamie Murphy



epidemiological survey psychosis survey data drive association suicidal behaviour suicidal ideation suicide

Reconsidering the association between psychosis and suicide: a suicidal drive hypothesis (2018)

Abstract Suicidal ideation/behaviour (SIB) and psychosis are highly associated phenomena. We propose that psychosis, for some, may be consequential to SIB. More specifically we hypothesise that psychosis may serve to externalise internally generated and self-directed threat among those experiencing SIB. Using prospective data from a Danish population cohort, we first sought to test the temporal occurrence of suicidal behaviour and psychotic disorder. Next, using cross-sectional epidemiological survey data (UK), we sought to demonstrate that psychotic experiences (PEs) were more commonly reported by those who experienced SIB and that the strength of the association varied according to (i) SIB recency and (ii) severity. Chi-square comparison tests on the Danish data revealed that suicidal behaviour was statistically more likely to precede (41.4%) rather than follow psychotic disorder (20.7%). Regression analyses of the UK data indicated that individuals who thought about suicide in their lifetime were up to eight times more likely to experience specific PEs while those who thought about and attempted suicide in their lifetime and in the year of assessment were up to 48 times more likely to experience PEs, compared to SIB free members of the population. The findings provide preliminary support for a novel suicidal drive hypothesis for psychosis.
Collections Ireland -> Maynooth University -> Academic Unit = Faculty of Science and Engineering: Psychology
Ireland -> Maynooth University -> Type = Article
Ireland -> Maynooth University -> Status = Published

Full list of authors on original publication

Richard Bentall, Ask Elklit, Mogens Christoffersen, Philip Hyland, Mark Shevlin, Jamie Murphy

Experts in our system

Ask Elklit
National College of Ireland
Total Publications: 46
Mogens Nygaard Christoffersen
National College Ireland
Total Publications: 13
Philip Hyland
National College of Ireland
Total Publications: 231
Mark Shevlin
National College of Ireland
Total Publications: 125
Jamie Murphy
National College of Ireland
Total Publications: 43