Reduced word-repetition effect in the event-related potentials of thought-disordered patients with schizophrenia

Kazunori Matsumoto, Hisato Yamazaki, Masaki Nakamura, Hirotaka Sakai, Nobuyoshi Miura, Tomonori Kato, Shinya Miwa, Takashi Ueno, Hidemitsu Saito, Hiroo Matsuoka

研究成果: Article査読

6 被引用数 (Scopus)

抄録

Repetition effect in event-related potentials (ERPs) was studied in 10 non-thought-disordered (non-TD) patients with schizophrenia, 8 thought-disordered (TD) patients with schizophrenia, and 10 normal control subjects while they performed a semantic categorization task with incidental word repetitions. All patients were in a stable or partially remitted stage. Although both healthy control and non-TD groups produced more positive ERPs to the repeated words than to the new words (ERP repetition effect) for 250-500 ms, the TD group did not show the ERP repetition effect. These findings suggest that the abnormal attenuation of the ERP repetition effect during semantic processing may be more prominent in schizophrenic patients with thought disorder than in those without the symptom.

本文言語English
ページ(範囲)225-231
ページ数7
ジャーナルPsychiatry Research
134
3
DOI
出版ステータスPublished - 2005 4 30

ASJC Scopus subject areas

  • Psychiatry and Mental health
  • Biological Psychiatry

フィンガープリント 「Reduced word-repetition effect in the event-related potentials of thought-disordered patients with schizophrenia」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル