Auditory gating deficit to human voices in schizophrenia: A MEG study

Yoji Hirano, Shogo Hirano, Toshihiko Maekawa, Choji Obayashi, Naoya Oribe, Akira Monji, Kiyoto Kasai, Shigenobu Kanba, Toshiaki Onitsuka

研究成果: Contribution to journalArticle査読

36 被引用数 (Scopus)

抄録

Background: Patients with schizophrenia have auditory gating deficits; however, little is known about P50 auditory gating to human voices and its association with clinical symptoms. We examined the functioning of auditory gating and its relationship with the clinical symptoms in schizophrenia. Methods: Auditory evoked magnetoencephalography responses to the first and the second voices stimuli were recorded in 22 schizophrenia patients and 28 normal control subjects. The auditory gating ratios of P50m and N100m were investigated and P50m-symptom correlations were also investigated. Results: Patients showed significantly higher P50m gating ratios to human voices specifically in the left hemisphere. Moreover, patients with higher left P50m gating ratios showed more severe auditory hallucinations, while patients with higher right P50m gating ratios showed more severe negative symptoms. Conclusions: The present study suggests that schizophrenia patients have auditory gating deficits to human voices, specifically in the left hemisphere and auditory hallucinations of schizophrenia may be associated with sensory overload to human voices in the auditory cortex.

本文言語英語
ページ(範囲)61-67
ページ数7
ジャーナルSchizophrenia research
117
1
DOI
出版ステータス出版済み - 3 2010

All Science Journal Classification (ASJC) codes

  • 精神医学および精神衛生
  • 生物学的精神医学

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