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Updated: Jul 13, 2026

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Pressure-polishing Pipettes for Improved Patch-clamp Recording
Published on: October 22, 2008
ストレスによる古典的コンディショニングの促進
T J Shors1, C Weiss, R F Thompson
1Department of Psychology, Princeton University, NJ 08544.
まとめ
ストレスは,典型的な学習欠陥とは対照的に,ネズミの古典的条件付けを驚くほど強化しました. ストレスを受けたネズミは,より多く,より強い条件付きの瞬き反応を示し,ストレスが離散応答の獲得を促進することを示唆しました.
科学分野:
- 神経科学は神経科学である.
- 行動心理学 行動心理学
- 動物の学習 動物の学習
背景:
- ストレスが学習や記憶に悪影響を及ぼすことが知られている.
- クラシック・コンディショニングは,関連学習の基本的な形態である.
- 過去の研究では,ストレスにさらされた後の学習障害がしばしば示されている.
研究 の 目的:
- クラシックコンディショニングの習得に対する急性ストレスの影響を調査する.
- ストレスは,離散的条件付き反応の学習を損なうか,強化するかを判断する.
主な方法:
- ネズミは避けられない,低強度の尻尾ショック (ストレッサー) に晒されました.
- ストレスを受けた後のラットは,周回軌道ショック (無条件刺激) とホワイトノイズ (有条件刺激) を使って古典的条件付けを受けた.
- 条件付きの瞬き応答は,自由に動く条件下で測定されました.
主要な成果:
- ストレスを受けたネズミは,条件付きの目まぐれ反応の数が著しく高かった.
- ストレスを受けたラットでは,個々の条件付き反応の大きさが増加した.
- これらの発見は,予想される学習赤字と対照的です.
結論:
- 急性ストレスは,障害ではなく,特異的な条件付き反応の獲得を高めることができます.
- ストレスは特定の条件下で,関連学習を容易にする可能性があります.
- この結果は,ストレスに起因する学習欠陥に関する一般的な見解に異議を唱えている.
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