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Avoidance Learning and Learned Helplessness01:14

Avoidance Learning and Learned Helplessness

1.7K
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...
1.7K
Self-Discrepancy Theory02:45

Self-Discrepancy Theory

18.3K
One influential perspective on what motivates people's behavior is detailed in Tory Higgin's self-discrepancy theory (Higgins, 1987). He proposed that people hold disagreeing internal representations of themselves that lead to different emotional states.  
18.3K
Behavior Therapy01:22

Behavior Therapy

43
Behavior therapy incorporates diverse techniques rooted in classical conditioning principles to address maladaptive behaviors and anxiety disorders. These methods aim to reduce avoidance behaviors, foster adaptive coping mechanisms, and alter associations between stimuli and responses, making them effective in a wide range of therapeutic contexts.
Exposure therapy is a cornerstone of behavioral treatment for anxiety disorders. It involves systematic exposure to feared stimuli, either in real...
43
Timing and Consequences on Behavior01:08

Timing and Consequences on Behavior

82
In operant conditioning, the timing of reinforcement is crucial. For animals like rats and cats, immediate reinforcement (within a few seconds) is much more effective than delayed reinforcement. For example, a food reward for a rat needs to follow within 30 seconds of pressing a bar to be effective. 
Humans, however, can respond to delayed reinforcers. We often make decisions between immediate small rewards and delayed larger rewards. This ability to delay gratification is a significant...
82
Aggression01:47

Aggression

27.7K
Humans engage in aggression when they seek to cause harm or pain to another person. Aggression takes two forms depending on one’s motives: hostile or instrumental. Hostile aggression is motivated by feelings of anger with intent to cause pain; a fight in a bar with a stranger is an example of hostile aggression. In contrast, instrumental aggression is motivated by achieving a goal and does not necessarily involve intent to cause pain (Berkowitz, 1993); a contract killer who murders for...
27.7K
Instinctive Drift01:05

Instinctive Drift

188
Instinctive drift refers to the tendency of animals to revert to their innate behaviors despite repeated reinforcement. Breland and Breland demonstrated this concept in an experiment with a raccoon. The raccoon was trained to pick up two coins and place them in a container in exchange for food. Initially, the raccoon learned to associate the coins with food, making them a conditioned stimulus or a substitute for food. However, over time, the raccoon became less willing to put the coins into the...
188

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相关实验视频

Updated: Jun 7, 2025

Investigating Pain-Related Avoidance Behavior using a Robotic Arm-Reaching Paradigm
09:00

Investigating Pain-Related Avoidance Behavior using a Robotic Arm-Reaching Paradigm

Published on: October 3, 2020

3.9K

轻微调整了一种新的长期威胁回避行为.

Marcos L Aranda, Eric Min, Lucy T Liu

    bioRxiv : the preprint server for biology
    |November 18, 2024
    PubMed
    概括

    动物学会使用视觉线索来避免与过去威胁相关的位置. 专门的视网膜细胞,通常不参与威胁检测,驱动这种长期回避行为.

    科学领域:

    • 神经科学是一个神经科学.
    • 动物行为 动物行为
    • 视觉科学 视觉科学 视觉科学

    背景情况:

    • 动物需要不断地对环境进行威胁扫描.
    • 整合过去的经验对于评估反复出现的危险至关重要.
    • 视觉信息在长期威胁再现评估中的作用尚不清楚.

    研究的目的:

    • 调查视觉信息如何影响长期避免威胁.
    • 为了确定神经回路涉及到学会威胁的重新出现.
    • 探索特定视网膜细胞在威胁记忆中的功能.

    主要方法:

    • 开发了一种新的行为测试,用于长期避免威胁.
    • 在一次接触威胁视觉刺激后评估避免行为.
    • 研究了表达黑色素的内在光敏感视网膜质细胞的作用.

    主要成果:

    • 动物在一次威胁暴露后显著避免熟悉的位置.
    • 避开行为持续了几天,证明了长期记忆.
    • 一个涉及特定视网膜细胞的周周核核电路,介导了这种行为.

    结论:

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    Last Updated: Jun 7, 2025

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    Investigating Pain-Related Avoidance Behavior using a Robotic Arm-Reaching Paradigm

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    • 黑色素表达的视网膜细胞在长期的威胁回避学习中发挥着关键作用.
    • 这种行为是由一个独特的神经电路介导的,与正规的威胁检测途径分开.
    • 之前的视觉体验通过专门的视网膜通路塑造了未来的威胁评估.