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Related Experiment Videos

Personality disorder and parietal lobe dysfunction

P C Horton

    The American Journal of Psychiatry
    |July 1, 1976
    PubMed
    Summary
    This summary is machine-generated.

    Difficulty relating transitionally, a key trait of personality disorder, may stem from the nondominant parietal lobe. This suggests parietal lobe dysfunction could be the brain basis for personality disorders.

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    Area of Science:

    • Neuroscience
    • Psychiatry
    • Cognitive Psychology

    Background:

    • Personality disorders are characterized by an inability to relate transitionally.
    • Transitional relatedness is developmentally independent of verbal-symbolic growth.
    • This function involves visual and tactile components and has an orienting role.

    Observation:

    • The characteristics of transitional relatedness suggest it is a function of the nondominant parietal lobe.
    • A common feature of both personality disorder and minor parietal lobe dysfunction is unawareness of illness (anosognosia) despite intact intellectual function.

    Findings:

    • The study hypothesizes that dysfunction in the nondominant parietal lobe is the cerebral analogue of personality disorder.
    • This hypothesis is supported by the shared symptom of anosognosia in both conditions.

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    Implications:

    • This research may lead to new diagnostic or therapeutic approaches for personality disorders by targeting the nondominant parietal lobe.
    • Understanding the neural basis of personality disorder could refine our understanding of brain-behavior relationships.
    • Further investigation into the role of the parietal lobe in social cognition and relatedness is warranted.