A classic study conducted in the 1970s highlighted the connection between serotonin levels and suicidal behavior. The research discovered that patients diagnosed with major depressive disorder who exhibited very low levels of serotonin were more likely to attempt suicide, and to do so more violently, than depressed patients with higher serotonin levels.

Study on Low Serotonin and Violent Suicide Attempts in Depressed Patients

Analyze the following clinical profile. Based on the combination of symptoms presented, explain how a dysfunction in a single neurotransmitter system could account for all three behavioral patterns and why this specific combination indicates a particularly high risk for self-harm.

Neurochemical Profile and Risk Assessment

Serotonin dysfunction is a known factor in depression and has also been associated with higher levels of aggression and impulsivity. The combination of these three traits—depression, aggression, and impulsivity—can create a psychological profile that significantly increases the likelihood of suicide, especially violent forms of suicide.

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Brain chemistry is considered a potential contributing factor to suicide. Neurological studies have established a link between suicidal behavior and disruptions in the functioning of the neurotransmitter serotonin. Evidence shows that low serotonin levels can predict future suicide attempts and have been observed in post-mortem analyses of individuals who have died by suicide.

Serotonin Dysfunction as a Biological Factor in Suicide

Spielman, R. M., Jenkins, W. J., & Lovett, M. D. (2020, April 22). Psychology (2nd ed.). OpenStax. https://openstax.org/books/psychology-2e/pages/1-introduction

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