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Pedophilia and temporal lobe disturbances
M F Mendez1, T Chow, J Ringman
1Department of Neurology, University of California at Los Angeles, USA. mmendez@UCLA.edu
Summary
Brain disease may trigger paraphilias. Two patients with frontotemporal dementia and hippocampal sclerosis showed increased sexual interest, suggesting neurological conditions can unmask pedophilia.
Area of Science:
- Neuroscience
- Psychiatry
- Neuropathology
Background:
- The relationship between brain disease and paraphilias remains poorly understood.
- Paraphilias, including pedophilia, are complex behavioral conditions.
- Neurological disorders can manifest with diverse behavioral changes.
Observation:
- Two male patients presented with late-life homosexual pedophilia and hypersexuality.
- One patient was diagnosed with frontotemporal dementia; the other had bilateral hippocampal sclerosis.
- Both patients exhibited prominent right temporal lobe hypometabolism on 18-fluorodeoxyglucose positron emission tomography.
Findings:
- Bilateral anterior temporal lobe disease, particularly affecting the right hemisphere more than the left, may increase sexual interest.
- Brain disease-induced hypersexuality can potentially unmask an underlying predisposition to pedophilia.
- These findings suggest a link between specific patterns of brain pathology and the emergence of paraphilic behaviors.
Implications:
- These observations suggest that certain neurological conditions can precipitate or unmask paraphilias.
- Understanding the neuropathological underpinnings of paraphilias is crucial for diagnosis and treatment.
- Further research into neurologically based paraphilias may reveal broader implications for understanding behavioral changes in brain disease.