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Published on: November 21, 2013
Critical periods of suicide risk in Huntington's disease
Jane S Paulsen1, Karin Ferneyhough Hoth, Carissa Nehl
1Department of Psychology, University of Iowa, Roy J. and Lucille A. Carver College of Medicine, 1-305 Medical Education Bldg., Iowa City, IA 52241-1000, USA. jane-paulsen@uiowa.edu
Insights
Contrary to popular belief, a Huntington's disease diagnosis may not increase suicide risk. Suicidal ideation is highest before diagnosis and early in the disease, suggesting critical periods for intervention.
Area of Science:
- Neuroscience
- Psychiatry
- Genetics
Background:
- Huntington's disease is a fatal neurodegenerative disorder.
- Suicidal ideation is a significant concern in neurodegenerative diseases.
- Previous research has not clearly identified periods of heightened suicide risk in Huntington's disease.
Purpose of the Study:
- To examine suicidal ideation in individuals at risk for and diagnosed with Huntington's disease.
- To identify critical periods associated with increased suicide risk in Huntington's disease.
Main Methods:
- Analysis of data from 4,171 individuals in the Huntington Study Group database.
- Categorization of participants based on neurological examination (0-3) and Huntington's disease stage (1-5).
- Assessment of suicidal ideation frequency across different stages of disease risk and diagnosis.
Main Results:
- Suicidal ideation increased from 9.1% in at-risk individuals with normal exams to 23.5% in those with possible Huntington's disease.
- In diagnosed patients, suicidal ideation was 16.7% in stage 1 and 21.6% in stage 2, decreasing in later stages.
- Two critical periods for elevated suicide risk were identified: pre-diagnosis and stage 2 of Huntington's disease.
Conclusions:
- The risk of suicidal ideation in Huntington's disease is not constant and appears highest before diagnosis and in early symptomatic stages.
- Healthcare providers should be aware of these critical periods to implement timely interventions.
- Further research is needed to understand the mechanisms underlying suicidal ideation in Huntington's disease.
Abstract:
Contrary to popular belief, receiving a diagnosis of a devastating fatal disease does not exacerbate, and may even alleviate, the risk of suicide. Suicidal ideation was examined in 4,171 individuals in the Huntington Study Group database. Participants were grouped according to a standardized neurological examination from 0 (i.e., normal examination) to 3 (definite Huntington's disease). Patients with an unequivocal diagnosis of Huntington's disease were further divided by stage of disease, from stage 1 (early) to stage 5 (end stage). Findings showed that the frequency of suicidal ideation doubled from 9.1% in at-risk persons with a normal neurological examination to 19.8% in at-risk persons with soft neurological signs and increased to 23.5% in persons with "possible Huntington's disease." In persons with a diagnosis of Huntington's disease, 16.7% had suicidal ideation in stage 1, and 21.6% had suicidal ideation in stage 2, whereas the proportion of Huntington's disease patients with suicidal ideation diminished thereafter. Findings suggest two critical periods for increased risk of suicide in Huntington's disease. The first critical period is immediately before receiving a formal diagnosis of Huntington's disease, and the second is in stage 2 of the disease, when independence diminishes. Although the underlying mechanisms of suicidal ideation in Huntington's disease are poorly understood, it is critical for health care providers to be aware of periods during which patients may be at an increased risk.
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