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Related Concept Videos

Positive Symptoms Schizophrenia: Hallucinations and Delusions01:26

Positive Symptoms Schizophrenia: Hallucinations and Delusions

Schizophrenia is a complex psychiatric disorder characterized by a range of symptoms that significantly impact cognition, behavior, and emotional regulation. Among these, the positive symptoms stand out as they involve the addition or exaggeration of normal mental functions, deviating markedly from typical behavior and perception. Hallucinations and delusions are prominent positive symptoms, each profoundly affecting the individual's experience of reality.
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Schizophrenia is a complex mental health disorder that can manifest with various positive symptoms, including thought, movement, and behavior disorders. These symptoms significantly disrupt cognitive and motor functions, leading to profound effects on an individual's ability to engage with the world.
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Musical hallucinations.

Stefan Evers1

  • 1Department of Neurology, University of Münster, Albert-Schweitzer-Str. 33, 48129 Münster, Germany. everss@uni-muenster.de

Current Psychiatry Reports
|October 13, 2009
PubMed
Summary

Musical hallucinations, often occurring in older adults with hearing loss, are linked to various causes like brain lesions or psychiatric conditions. Treatment may involve anticonvulsants or antidepressants.

Area of Science:

  • Neurology
  • Psychiatry
  • Otolaryngology

Background:

  • Musical hallucinations are complex auditory phenomena with an unclear pathophysiologic basis.
  • They are observed across various neurological and psychiatric patient populations.
  • Existing literature lacks a comprehensive understanding of their underlying mechanisms.

Purpose of the Study:

  • To analyze published cases of musical hallucinations to identify etiological subgroups and demographic patterns.
  • To explore potential pathophysiologic theories underlying musical hallucinations.
  • To review treatment efficacy for musical hallucinations.

Main Methods:

  • Systematic review and analysis of published case reports on musical hallucinations.
  • Categorization of cases based on etiology: hypacusis, psychiatric disorders, focal brain lesions, epilepsy, and intoxication.

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  • Examination of patient demographics, including age, sex, and hemispheric dominance.

    • Main Results:

    • Five etiological subgroups were identified: hypacusis, psychiatric disorders, focal brain lesions, epilepsy, and intoxication.
    • A female preponderance (approx. 70%) was observed.
    • Musical hallucinations predominantly affect individuals over 60, though focal brain lesions are associated with younger patients; hypacusis is common across groups.

    Conclusions:

    • Musical hallucinations are heterogeneous, with diverse etiologies and demographic profiles.
    • Hypacusis is a significant contributing factor in the majority of cases.
    • Pathophysiologic theories include deafferentation, sensory deprivation, parasitic memory, and spontaneous neural network activity; anticonvulsant and antidepressant therapies show promise.