オペラント学習中に見られる、報酬に関連した海馬リップル波

カテゴリ: 部門大会

論文No: TC3-20

グループ名: 【C】平成24年電気学会電子・情報・システム部門大会講演論文集

発行日: 2012/09/05

タイトル(英語): Hippocampal ripples during operant task relative to the reward in rats.

著者名: 藤原清 悦(聖マリアンナ医科大学),伊崎 義憲(聖マリアンナ医科大学),舩橋 利也(聖マリアンナ医科大学),明間 立雄(聖マリアンナ医科大学)

著者名(英語): Sei Etsu Fujiwara (St. Marianna University),Yoshinori Izaki(St. Marianna University),Toshiya Funabashi(St. Marianna University),Tatsuo Akema(St. Marianna University)

キーワード: 局所集合電位|記憶|海馬|リップル|Local field potential|Memory|Hippocampus|Ripple

要約(日本語): The hippocampal ripples are component of the local field potential thought to correlate with memory function that characterized short oscillatory activity at high frequency (about 100-250Hz) during slow wave sleep or quiescent state. To investigate the ripples during learning state, we analyzed the ripples during delayed reinforcement task as a kind of memory retention test. In the correct trials, the occurrence of the ripple just before reward cue was increased. The peaks of the occurrence were correlated with performance of the task significantly. In contrast, the occurrence of ripples during incorrect trials showed no significant change. The ripples before reward cue may reflect the neuronal activities for prediction of a reward involving memory recall.

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