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'Jumping to conclusions' in first-episode psychosis: a longitudinal study

Lookup NU author(s): Dr Rob DudleyORCiD, Kate Daley, Dr Marsha Cochrane, Debra Shaftoe, Helen Spencer, Dr Kate Cavanagh, Professor Mark FreestonORCiD


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Objectives: People with psychotic symptoms are reported to have a characteristic reasoning style in which they jump to conclusions (JTC). To date little research has been conducted to investigate if this style changes over time and is associated with improvements or worsening of symptoms. This study considered these questions. Methods: 31 service users were recruited from a first episode service and completed measures of reasoning, psychotic and non psychotic symptomatology at two time points over two years. Results: Over time, people with psychosis generally became less hasty in their decision making. Those who became less hasty in their reasoning were less symptomatic. For those that remained very hasty in their reasoning this was associated with a worsening specifically of the delusional beliefs. Conclusions: This work supports the notion that there is a critical time in the first few years of psychosis during which symptoms and reasoning can change. However, where reasoning style does not change this may be associated with greater difficulties associated with delusional beliefs.

Publication metadata

Author(s): Dudley R, Daley K, Nicholson M, Shaftoe D, Spencer H, Cavanagh K, Freeston M

Publication type: Article

Publication status: Published

Journal: British Journal of Clinical Psychology

Year: 2013

Volume: 52

Issue: 4

Pages: 380-393

Print publication date: 01/11/2013

Online publication date: 19/07/2013

ISSN (print): 0144-6657

ISSN (electronic): 2044-8260

Publisher: John Wiley & Sons Ltd


DOI: 10.1111/bjc.12023


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