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The Relationship Between Suicidal Behavior, Neurocognitive Functions, and Insight in Patients with Schizophrenia
Sumeyye Yasemin Calli1, Yagmur Sever Fidan1, Engin Emrem Bestepe1
1Erenköy Mental and Nervous Diseases Training and Research Hospital, Istanbul, Turkey.
Psychiatry and Clinical Psychopharmacology
|May 20, 2024
Summary
Cognitive insight and impulsivity are linked to suicide attempts in schizophrenia patients. Lower self-certainty and higher risk-taking behaviors in schizophrenia increase suicide risk.
Area of Science:
- Psychiatry
- Neuroscience
- Cognitive Psychology
Background:
- The link between suicidal behavior and cognitive function in schizophrenia remains unclear.
- Schizophrenia patients exhibit varied cognitive profiles, impacting suicide risk assessment.
Purpose of the Study:
- To investigate cognitive functions and insight in schizophrenia patients with a history of suicide attempts versus those without.
- To identify cognitive factors associated with increased suicide risk in schizophrenia.
Main Methods:
- A cohort of 77 schizophrenia patients was assessed, divided into those with (n=36) and without (n=41) suicide attempts.
- Evaluations included sociodemographic data, the Beck Cognitive Insight Scale, and the Cambridge Neurophysiological Assessment Battery (CNAB).
Main Results:
- Patients with suicide attempts showed higher self-reflectiveness and total scores, but lower self-certainty on the Beck Cognitive Insight Scale.
- CNAB Cambridge gambling task revealed higher delay aversion and risk-taking scores in the suicide attempt group.
- Logistic regression indicated that increased hospitalizations, CNAB delay aversion, and lower Beck Cognitive Insight Scale self-certainty significantly predicted suicide attempts.
Conclusions:
- Cognitive insight, particularly self-certainty, is significantly associated with suicide attempts in schizophrenia.
- Cognitive impulsivity, as indicated by delay aversion and risk-taking, is linked to suicidal behavior in this population.
- Further research is needed to elucidate the complex relationship between cognition and suicidality in schizophrenia.
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