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Poststroke delusions: What about the neuroanatomical and neurofunctional basis?
Michele Torrisi1, Rosaria De Luca1, Patrizia Pollicino1
1a IRCCS Centro Neurolesi "Bonino Pulejo" , Messina , Italy.
Applied Neuropsychology. Adult
|January 20, 2018
Summary
Stroke can cause uncommon psychotic symptoms like delusions. Simultaneous damage to the right temporal lobe, basal ganglia, and insula may underlie these persistent post-stroke delusions.
Area of Science:
- Neuroscience
- Psychiatry
- Neurology
Background:
- Stroke is known to cause psychiatric effects, but psychotic symptoms, particularly delusions, are infrequent.
- Commonly studied post-stroke delusions include paranoid, nihilistic, and Fregoli syndrome.
Observation:
- This study details two patients who developed persistent delusion symptoms (Cotard-like and erotomanic) after a stroke.
- The stroke affected the right temporal lobe, basal ganglia, and insular region in both patients.
Findings:
- The observed delusions persisted long after the stroke onset.
- The simultaneous involvement of the right temporal lobe, basal ganglia, and insula is hypothesized to be the neuroanatomical basis for these delusions.
Implications:
- This suggests a potential neuroanatomical correlate for specific delusion types following stroke.
- Neurofunctional evaluation supports the link between the affected brain regions and the development of delusions.
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