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Preventing schizophrenia and psychotic behaviour: definitions and methodological issues.
Stephen V Faraone1, C Hendricks Brown, Stephen J Glatt
1Department of Psychiatry, Harvard Medical School, Massachusetts General Hospital, Boston, Massachusetts, USA.
Canadian Journal of Psychiatry. Revue Canadienne De Psychiatrie
|September 6, 2002
Summary
Preventing schizophrenia requires identifying individuals at risk early in life. Research into genetic, environmental, and developmental factors is crucial for developing effective early interventions and treatments for schizophrenia.
Area of Science:
- Neuroscience
- Psychiatry
- Developmental Psychology
Background:
- Schizophrenia typically emerges in late adolescence or early adulthood.
- Onset is linked to a neurodevelopmental process with aberrant brain functioning.
- Current schizophrenia therapies are not fully effective, necessitating preventive strategies.
Purpose of the Study:
- To review methodological challenges in creating effective schizophrenia preventive interventions.
- To identify risk factors for selecting at-risk populations for prevention.
- To discuss different types of prevention programs for schizophrenia.
Main Methods:
- Review of identified schizophrenia risk factors: genetic, psychosocial, perinatal complications, and viral infections.
- Analysis of universal, indicated, and selective prevention program types.
- Distinguishing between prevention targeting prodromal cases and premorbid precursors.
Main Results:
- Effective prevention requires defining target populations through risk factor identification.
- Several risk factors are known, including genes, psychosocial elements, and perinatal issues.
- Prevention strategies must differentiate between targeting early symptoms and addressing premorbid stages.
Conclusions:
- Truly preventive treatments for schizophrenia necessitate studies focusing on premorbid individuals.
- Targeting prodromal cases aids early treatment but is not sufficient for primary prevention.
- Overcoming methodological challenges is key to developing successful schizophrenia prevention.