Translating Interventional Neuroscience to Suicide: It's About Time

Area of Science:

• Neuroscience
• Psychiatry
• Psychology

Background:

• Suicide deaths have increased despite advances in psychiatric and psychological treatments.
• Neuroscience has yielded limited translational interventions for suicidal thoughts and behaviors.
• Limited integration of neurocircuitry models with suicide theory and the variable nature of suicide risk over time are key challenges.

Purpose of the Study:

• To review neurobiological perspectives on ideation-to-action theories of suicide.
• To describe neural correlates of suicide reduction following various interventions.
• To propose novel research designs integrating real-time, biologically based interventions for suicide reduction.

Main Methods:

• Review of contemporary ideation-to-action theories of suicide from a neurobiological perspective.
• Description of neural correlates of suicide reduction from circuit-specific, pharmacological, and psychological interventions.
• Introduction of novel strategies for real-time risk tracking using ecological momentary interventions.

Main Results:

• Valence and executive function circuits are key, modulated by state-induced factors within stressful contexts.
• Neural correlates of suicide reduction are observed with interventions like transcranial magnetic stimulation, ketamine, lithium, and brief cognitive therapy.
• Temporal fluctuations in suicide risk influence treatment efficacy and require consideration.

Conclusions:

• Integrating neurocircuitry models with suicide theory and accounting for temporal risk variability are crucial for developing effective interventions.
• Real-time monitoring and biologically based interventions hold promise for future suicide reduction research.
• Novel research designs are needed to bridge the gap between neuroscience insights and clinical application for suicide prevention.