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Early auditory processing dysfunction in schizophrenia: Mechanisms and implications.

Clément Dondé1, Joshua T Kantrowitz2, Alice Medalia3

  • 1Univ. Grenoble Alpes, F-38000 Grenoble, France; INSERM, U1216, F-38000 Grenoble, France; Psychiatry Department, CHU Grenoble Alpes, F-38000 Grenoble, France; Psychiatry Department, CH Alpes-Isère, F-38000 Saint-Egrève, France.

Neuroscience and Biobehavioral Reviews
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Early auditory processing deficits are central to schizophrenia, impacting cognition and social function. These impairments offer potential targets for new treatments and understanding the disorder's causes.

Keywords:
AuditoryEvent-related potentialsNMDA receptorSchizophreniaTone-matching

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Area of Science:

  • Neuroscience
  • Psychiatry
  • Cognitive Science

Background:

  • Schizophrenia affects 1% of the global population, characterized by cognitive deficits and disability.
  • Impaired early auditory perception is a well-documented feature in schizophrenia.
  • Auditory dysfunction is linked to higher-order cognitive and social cognitive deficits.

Purpose of the Study:

  • To review early auditory dysfunction in schizophrenia from behavioral and neurophysiological viewpoints.
  • To explore the link between auditory processing, cognitive functions, and social cognition.
  • To discuss the role of glutamatergic and N-methyl-D-aspartate receptor (NMDAR) dysfunction in schizophrenia pathophysiology.
  • To examine the potential of auditory measures as treatment targets and biomarkers.

Main Methods:

  • Literature review synthesizing behavioral and neurophysiological findings.
  • Analysis of the relationship between early auditory processing and cognitive/social deficits.
  • Examination of pathological mechanisms, focusing on glutamatergic and NMDAR pathways.
  • Discussion of translational applications of auditory measures.

Main Results:

  • Early auditory deficits are consistently observed in schizophrenia patients.
  • These deficits correlate with impairments in complex cognition and social cognition.
  • Glutamatergic and NMDAR dysfunction are implicated in the underlying pathology.
  • Early auditory measures show promise as biomarkers and therapeutic targets.

Conclusions:

  • Early auditory deficits play a critical role in schizophrenia pathophysiology.
  • Addressing auditory processing offers a promising avenue for precision intervention.
  • Auditory measures are valuable for etiological research and biomarker development.