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論文
- タイトル
- タイトル(英)
- Memory reconsolidation and extinction have distinct temporal and biochemical signatures
- 参照URL
- https://researchmap.jp/suzukia/published_papers/13492643
- 著者
- 著者(英)
- A Suzuki,SA Josselyn,PW Frankland,S Masushige,AJ Silva,S Kida
- 担当区分
- 概要
- 概要(英)
- Memory retrieval is not a passive phenomenon. Instead, it triggers a number of processes that either reinforce or alter stored information. Retrieval is thought to activate a second memory consolidation cascade (reconsolidation) that requires protein synthesis. Here, we show that the temporal dynamics of memory reconsolidation are dependent on the strength and age of the memory, such that younger and weaker memories are more easily reconsolidated than older and stronger memories. We also report that reconsolidation and extinction, two opposing processes triggered by memory retrieval, have distinct biochemical signatures: pharmacological antagonism of either cannabinoid receptor 1 or L-type voltage-gated calcium channels blocks extinction but not reconsolidation. These studies demonstrate the dynamic nature of memory processing after retrieval and represent a first step toward a molecular dissection of underlying mechanisms.
- 出版者・発行元
- 出版者・発行元(英)
- SOC NEUROSCIENCE
- 誌名
- 誌名(英)
- JOURNAL OF NEUROSCIENCE
- 巻
- 24
- 号
- 20
- 開始ページ
- 4787
- 終了ページ
- 4795
- 出版年月
- 2004年5月
- 査読の有無
- 査読有り
- 招待の有無
- 掲載種別
- 研究論文(学術雑誌)
- ISSN
- 0270-6474
- DOI URL
- https://doi.org/10.1523/JNEUROSCI.5491-03.2004
- 共同研究・競争的資金等の研究課題
研究者
鈴木 章円
(スズキ アキノブ)