Journal
BIPOLAR DISORDERS
Volume 20, Issue 4, Pages 334-348Publisher
WILEY
DOI: 10.1111/bdi.12622
Keywords
bipolar disorder; mood disorders; neurocognitive models; suicide; suicide models; suicide process
Categories
Funding
- Australian Rotary Health
- Sydney Medical School Foundation
- SPARK Sydney
- Ramsay Health Research and Teaching Fund
- NHMRC [APP1073041]
- American Foundation for Suicide Prevention [PRG-0-090-14, SRG-0-089-16]
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IntroductionSuicide is a multicausal human behavior, with devastating and immensely distressing consequences. Its prevalence is estimated to be 20-30 times greater in patients with bipolar disorders than in the general population. The burden of suicide and its high prevalence in bipolar disorders make it imperative that our current understanding be improved to facilitate prediction of suicide and its prevention. In this review, we provide a new perspective on the process of suicide in bipolar disorder, in the form of a novel integrated model that is derived from extant knowledge and recent evidence. MethodsA literature search of articles on suicide in bipolar disorder was conducted in recognized databases such as Scopus, PubMed, and PsycINFO using the keywords suicide, suicide in bipolar disorders, suicide process, suicide risk, neurobiology of suicide and suicide models. Bibliographies of identified articles were further scrutinized for papers and book chapters of relevance. ResultsRisk factors for suicide in bipolar disorders are well described, and provide a basis for a framework of epigenetic mechanisms, moderated by neurobiological substrates, neurocognitive functioning, and social inferences within the environment. Relevant models and theories include the diathesis-stress model, the bipolar model of suicide and the ideation-to-action models, the interpersonal theory of suicide, the integrated motivational-volitional model, and the three-step theory. Together, these models provide a basis for the generation of an integrated model that illuminates the suicidal process, from ideation to action. ConclusionSuicide is complex, and it is evident that a multidimensional and integrated approach is required to reduce its prevalence. The proposed model exposes and provides access to components of the suicide process that are potentially measurable and may serve as novel and specific therapeutic targets for interventions in the context of bipolar disorder. Thus, this model is useful not only for research purposes, but also for future real-world clinical practice.
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