Daley, Claudia and Palmier-Claus, Jasper and Sellwood, Bill (2024) Exploring Mental Imagery in Psychosis: Systematic Review and Lessons Learned from a Pilot Study Intervention for Suicidal Ideation. PhD thesis, Lancaster University.
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Abstract
This thesis explores the role of mental imagery in psychosis, encompassing both a systematic review and a pilot feasibility study. Section One presents a systematic review aimed at exploring the relationship between mental imagery and psychosis. A comprehensive search of four academic databases was conducted, utilising keywords related to mental imagery and psychosis. The review highlights that mental imagery appears to be altered in people with psychosis. Results suggested that the apparent alterations in mental imagery may influence symptomology, but the relationship requires further investigation. Section Two details a pilot feasibility study exploring the application of a positive mental imagery intervention targeting suicidal ideation in a small sample of individuals with psychosis who were also experiencing suicidal thoughts. Due to recruitment barriers, the study shifted its focus to lessons learned about conducting research within this population group. Results showed that participants enjoyed the intervention and rated the intervention as acceptable and feasible. However, the results are inconclusive due to the low sample size and attrition rate. Apparent adaptations that were helpful within the study are discussed. It is recommended that a more extensive feasibility study should be explored in further research to determine the acceptability and feasibility of this approach. Section Three critically appraises the research process, reflecting on the methodological decisions, challenges faced, and implications of the findings for clinical practice and future research.