From ideation to action: recent advances in understanding suicide capability

Area of Science:

• Psychology
• Psychiatry
• Suicidology

Background:

• Suicide capability is a significant risk factor for suicide attempts in individuals experiencing suicidal ideation.
• The Interpersonal Psychological Theory of Suicide introduced the concept of acquired capability, referring to the ability to endure the fear and pain associated with death.
• Understanding of suicide capability has expanded over the past decade.

Purpose of the Study:

• To review the multifaceted nature of suicide capability.
• To explore the mechanisms through which different contributors influence suicide capability.
• To highlight the need for improved measurement of suicide capability.

Main Methods:

• Literature review and theoretical synthesis.
• Examination of factors contributing to suicide capability, including acquired, dispositional, and practical elements.
• Discussion of mechanisms like fear of death, pain persistence, and method familiarity.

Main Results:

• Suicide capability is influenced by acquired factors (e.g., non-suicidal self-injury), dispositional factors (e.g., genetics), and practical factors (e.g., access to lethal means).
• These contributors operate through mechanisms such as reducing fear of death, increasing pain tolerance, and familiarity with suicide methods.
• Existing self-report measures for suicide capability have yielded inconsistent results.

Conclusions:

• Suicide capability is a complex construct influenced by multiple factors.
• There is a critical need to develop and validate behavioral measures to accurately assess suicide capability.
• Advancing measurement of suicide capability is crucial for improving suicide risk assessment and prevention strategies.