V2EX long-term depression

Long-term Depression

释义 Definition

long-term depression(短语)常见有两类用法:

  1. 长期抑郁(情绪/临床):持续时间较长的抑郁状态或抑郁障碍(口语或科普语境中常见)。
  2. 长时程抑制(神经科学,常写作 LTD):一种突触可塑性现象,指神经元之间的突触传递效率在较长时间内减弱,常与学习和记忆机制相关。
    (具体含义通常由上下文决定。)

发音 Pronunciation (IPA)

/ltrm dprn/

例句 Examples

She has struggled with long-term depression.
她一直在与长期抑郁作斗争。

In the hippocampus, long-term depression can weaken synaptic connections and may contribute to learning and memory.
在海马体中,长时程抑制会削弱突触连接,并可能参与学习与记忆过程。

词源 Etymology

这是由 long-term(长期的)+ depression(抑制/抑郁)构成的复合短语。depression 源自拉丁语 depressio(“压下、降低”之意),因此它既可指心理层面的“情绪低落”,也可指生理/系统层面的“功能减弱(抑制)”。神经科学中的 “long-term depression” 由此引申为“长期的(突触)减弱”。

相关词 Related Words

文学与经典著作 Literary & Notable Works

  • Principles of Neural Science(Kandel 等):在突触可塑性章节中讨论 **long-term depression (LTD)**。
  • From Neuron to Brain(Nicholls 等):介绍 LTD 与神经回路可塑性。
  • The Noonday Demon: An Atlas of Depression(Andrew Solomon):讨论抑郁相关概念时可能出现 “long-term depression” 这一表述(偏情绪/临床语境)。
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