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Criminal Behavior in Early Onset Neurodegenerative Diseases
Helmi Soppela1, Mikko Aaltonen2, Kalle Aho1
1Institute of Clinical Medicine - Neurology, University of Eastern Finland, Kuopio, Finland.
European Journal of Neurology
|April 8, 2025
Summary
Criminal behavior was more common in individuals with frontotemporal dementia (FTD) before diagnosis. This suggests that unexplained criminal acts in late adulthood may signal early neurodegenerative disease.
Area of Science:
- Neuroscience
- Criminology
- Geriatrics
Background:
- Limited research exists on criminal behavior preceding neurodegenerative disease diagnoses.
- Some studies indicate elevated crime rates in individuals with frontotemporal dementia (FTD).
Purpose of the Study:
- To investigate the association between neurodegenerative diseases and criminal behavior.
- To determine if criminal behavior occurs before the diagnosis of neurodegenerative conditions, particularly FTD.
Main Methods:
- A cohort of patients with neurodegenerative diseases was identified from university hospitals.
- Patient data were compared with national population data and linked to criminal records.
- A total of 2424 neurodegenerative disease patients were included in the analysis.
Main Results:
- Overall crime rates were significantly higher in FTD patients the year before diagnosis compared to controls (9.4% vs. 6.3%).
- FTD patients showed a substantial decrease in criminal rates three years post-diagnosis (4.7% vs. 12.3% in controls).
Conclusions:
- Criminal behavior is overrepresented in FTD patients prior to diagnosis.
- Unexplained criminal behavior in late adulthood may indicate a potential early symptom of neurodegenerative disease, warranting further investigation.
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