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Related Experiment Videos

Are auditory-verbal hallucinations associated with auditory affective processing deficits?

Susan L Rossell1, Catherine L Boundy

  • 1Macquarie Centre for Cognitive Science (MACCS), Macquarie University, Sydney, NSW 2109, Australia. srossell@mhri.edu.au

Schizophrenia Research
|July 12, 2005
PubMed
Summary

Patients with auditory-verbal hallucinations (AVH) show deficits in perceiving auditory affect, especially with non-verbal environmental sounds. These findings highlight auditory affect perception impairments in schizophrenia with AVH.

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Area of Science:

  • Neuroscience
  • Psychology
  • Psychiatry

Background:

  • Auditory-verbal hallucinations (AVH) are a core symptom of schizophrenia.
  • The relationship between AVH and auditory affect perception remains unclear.

Purpose of the Study:

  • To investigate if AVH is associated with impaired auditory affect perception.
  • To differentiate deficits related to AVH from general schizophrenia-related impairments.

Main Methods:

  • Compared controls, schizophrenia patients with AVH, and schizophrenia patients without AVH (NAVH).
  • Administered four auditory affect perception tasks using non-verbal/non-semantic and verbal/semantic stimuli.
  • Included a dichotic listening task to assess auditory processing.

Main Results:

Related Experiment Videos

  • AVH patients exhibited significant impairments in recognizing affective environmental sounds.
  • AVH patients showed reduced right ear performance on dichotic listening.
  • Both patient groups were impaired on verbal/semantic auditory affect tasks, possibly due to semantic processing deficits.

Conclusions:

  • AVH is linked to specific deficits in auditory affect perception, particularly with non-verbal stimuli.
  • Schizophrenia patients with AVH have an increased susceptibility to auditory affect perception deficits.
  • Semantic processing impairments in schizophrenia may mask AVH-related auditory affect deficits.