Ethological Problems with the Interpersonal Theory of Suicide

Author:

Soper C. A.1ORCID

Affiliation:

1. Private Practice, Lisbon, Portugal

Abstract

Joiner and colleagues’ Interpersonal Theory of Suicide (IPTS), a prominent “desire-capability” model of suicide—based on the common-sense idea that people take their own lives because they want to, and can—is critiqued from a biological perspective. Tinbergen’s ethological “four questions” guide the analysis: evolution, survival value, ontogeny, and proximate causation, each addressing a different aspect of biological understanding. Problems for IPTS emerge with all four. As a parsimonious solution, the desire-capability hypothesis is reconceived as an ultimate, instead of proximate, mode of explanation. By this light, desire and capability for suicide combined in our species’ ancestral past, thus making suicide a recurrent survival threat, and driving the evolution of special-purpose defensive adaptations. This stance tallies with the pain-brain theory of the evolution of suicide, and with Joiner and colleagues’ own investigation into organismic anti-suicide defenses, which appears to conflict conceptually with IPTS. These defenses’ evolved algorithm may make suicide an intrinsically aleatory phenomenon, opaque to usefully accurate prediction. Positive implications for prevention and research are proposed.

Publisher

SAGE Publications

Subject

Life-span and Life-course Studies,Critical Care and Intensive Care Medicine,Health (social science)

Cited by 2 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

1. An Integrated General Theory of Psychopathology and Suicide;Evolutionary Psychological Science;2023-11-02

2. On the Randomness of Suicide;Evolutionary Psychiatry;2022-09-29

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