オドボール課題を用いたラットにおける事象関連電位の検討

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タイトル ( jpn )
オドボール課題を用いたラットにおける事象関連電位の検討
タイトル ( eng )
Event-related potentials of the rat during a passive auditory oddball task
作成者
小野田 慶一
高橋 絵理佳
寄与者 国立情報学研究所
収録物名
広島大学総合科学部紀要. IV, 理系編
Memoirs of the Faculty of Integrated Arts and Sciences, Hiroshima University. IV, Science reports
27
開始ページ 35
終了ページ 43
抄録
The purpose of this experiment was to examine event-related potentials (ERPs) recoreded from the rat's hippocampus and cerebellum during a passive auditory oddball task. It has beeen predicted that mismatch negativity like (MMN-like) and P3-like components are elicited by the infrequent stimuli in the hippocampus. Further it was questioned that whether MMN-like and P3-like components can be observed at the cerebellum. ERPs recorded from those regions consisted of P1,N1,P2,N2,and P3-like components. P3-like component was obscurely elicited by infrequent stimuli at the hippocampus and the cerebellum. In both regions, a significant difference in N2 amplitude between infrequent and frequent stimuli was observed. N2 component of the rat may correspond with MMN of the human. No significant differences of these components amplitude between infrequent and frequent stimuli were found for other components. N1 latency at the cerebellum was significantly shorter than those in the hippocampus. Correlation analysis revealed that the maximal correlation coefficient between the cerebellum and the hippocampus was obtained at -20.0ms (max : -56,min : -7). This finding suggests that information processing in the cerebellum may be carried out earlier than that in the hippocampus.
著者キーワード
event-related potentials
rat
hippocampus
cerebellum
passive oddball paradigm
言語
日本語
資源タイプ 紀要論文
出版者
広島大学総合科学部
発行日 2001-12
出版タイプ Version of Record(出版社版。早期公開を含む)
アクセス権 オープンアクセス
日付
[作成日] 2006-03-21
収録物識別子
[ISSN] 1340-8364
[NCID] AN10435936