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Somatoparaphrenia: evolving theories and concepts.
Todd E Feinberg1, Annalena Venneri2
1Departments of Psychiatry and Neurology, Icahn School of Medicine at Mount Sinai and the Yarmon Neurobehavior and Alzheimer's Disease Center, Mount Sinai Beth Israel, New York, NY, USA.
Summary
Somatoparaphrenia is a neurological disorder where individuals lack ownership of body parts, often experiencing delusions and confabulations. Future research should explore brain connectivity and functional networks to understand this condition.
Area of Science:
- Neuroscience
- Psychiatry
- Cognitive Psychology
Background:
- Somatoparaphrenia is characterized by unawareness of body part ownership.
- It often includes delusional misidentification and confabulation.
Purpose of the Study:
- To review the clinical and neuroanatomical features of somatoparaphrenia.
- To highlight its delusional and confabulatory aspects.
- To explore theoretical frameworks including cognitive, psychodynamic, and philosophical views.
Main Methods:
- Literature review of clinical and neuroanatomical studies.
- Analysis of theoretical frameworks.
- Discussion of potential future research directions.
Main Results:
- Somatoparaphrenia presents with a lack of body ownership and often involves delusions and confabulations.
- Existing theoretical frameworks offer partial explanations for the syndrome.
- Structural and functional brain connectivity alterations are implicated.
Conclusions:
- Further research into structural and functional connectivity is needed.
- Investigating the interplay between brain networks like default mode and salience networks is crucial.
- Motivational variables may also play a role in somatoparaphrenia.
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