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相关概念视频

Hindsight Biases01:12

Hindsight Biases

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Hindsight bias leads you to believe that the event you just experienced was predictable, even though it really wasn’t. In other words, you knew all along that things would turn out the way they did. Can you relate this to the phrase "Hindsight is 20/20" now? 
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Purposive Learning01:22

Purposive Learning

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E. C. Tolman emphasized the purposiveness of behavior — the idea that much of our behavior is goal-directed. For instance, employees who aim for a promotion work diligently to meet their targets. Tolman argued that when classical conditioning and operant conditioning occur, the organism acquires certain expectations. In classical conditioning, a child might fear a dog because they expect it to bite. In operant conditioning, a person might consistently work overtime because they expect a...
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Avoidance Learning and Learned Helplessness01:14

Avoidance Learning and Learned Helplessness

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Avoidance learning and learned helplessness are critical concepts in understanding behavioral responses to negative stimuli.
Avoidance learning occurs when an organism learns that a specific behavior can prevent an unpleasant outcome. For example, a student who receives a bad grade may start studying harder to avoid future poor grades. This behavior persists even when the negative outcome is no longer present. Avoidance learning is powerful because it maintains behavior in the absence of the...
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Long-term Potentiation01:35

Long-term Potentiation

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Long-term potentiation, or LTP, is one of the ways by which synaptic plasticity—changes in the strength of chemical synapses—can occur in the brain. LTP is the process of synaptic strengthening that occurs over time between pre- and postsynaptic neuronal connections. The synaptic strengthening of LTP works in opposition to the synaptic weakening of long-term depression (LTD) and together are the main mechanisms that underlie learning and memory.
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Steps in the Modeling Process01:14

Steps in the Modeling Process

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Albert Bandura's theory of observational learning identifies four critical processes: attention, retention, motor reproduction, and reinforcement or motivation.
Attention is the first necessary component for observational learning. It involves focusing on what the model is doing and saying. For example, if you decide to take a drawing class to enhance your skills, you need to pay close attention to the instructor's words and hand movements. The characteristics of the model significantly...
201
Generalization, Discrimination, and Extinction01:24

Generalization, Discrimination, and Extinction

545
Generalization, discrimination, and extinction are key concepts in operant conditioning that influence how behaviors are learned and maintained.
Generalization occurs when a behavior reinforced in one context is performed in similar situations. For instance, a student who studies diligently for calculus and receives excellent grades might apply the same study habits to psychology and history, expecting similar results. Generalization shows how learning in one setting can influence behavior in...
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相关实验视频

Updated: Jun 28, 2025

Study Motor Skill Learning by Single-pellet Reaching Tasks in Mice
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Study Motor Skill Learning by Single-pellet Reaching Tasks in Mice

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坚持不的教训

Jennifer Couzin-Frankel

    Science (New York, N.Y.)
    |April 11, 2024
    PubMed
    概括
    此摘要是机器生成的。

    新的临床试验正在研究消除长期Covid患者的持续病毒的方法. 这些研究旨在为患有这种衰弱疾病的人提供急需的缓解和康复.

    科学领域:

    • 病毒学
    • 免疫学
    • 临床医学

    背景情况:

    • 长期Covid是一种后病毒综合征,影响全球众多个体.
    • 持续的病毒储存被假设为持续的症状.

    研究的目的:

    • 评估针对长期Covid病毒持续性的新疗法.
    • 评估这些干预措施在缓解长期COVID症状和改善患者结果方面的有效性.

    主要方法:

    • 开始使用特定抗病毒或免疫调节剂的新临床试验.
    • 监测参与者的病毒载量,免疫标志物和症状严重程度.

    主要成果:

    • 目前正在收集正在进行的试验的初步数据,以评估治疗反应.
    • 需要进一步分析以确定对病毒清除和症状缓解的影响.

    结论:

    • 新型治疗方法正在研究长期Covid,专注于病毒的持续性.
    • 这些试验是针对未满足医疗需求的患者开发向治疗的关键一步.

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