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相关概念视频

Timing and Consequences on Behavior01:08

Timing and Consequences on Behavior

100
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...
100
Generalization, Discrimination, and Extinction01:24

Generalization, Discrimination, and Extinction

566
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...
566
Operant Conditioning01:21

Operant Conditioning

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Operant conditioning, a key concept in behavioral psychology, involves using reinforcement and punishment to alter the likelihood of a behavior being repeated. B.F. introduced this type of conditioning. Skinner focused on voluntary behaviors and the consequences that follow them, influencing whether these behaviors will be strengthened or diminished.
Reinforcement in operant conditioning can be positive or negative, both of which serve to increase the likelihood of a behavior. Positive...
1.6K
Behavior Modification01:21

Behavior Modification

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Behavioral approaches have often been criticized for ignoring mental processes and focusing solely on observable behavior. However, these approaches provide an optimistic perspective for individuals seeking to change their behaviors. Rather than concentrating on intrinsic personality traits, behavioral approaches suggest that even longstanding habits can be modified by changing the reward contingencies that maintain them.
A real-world application of operant conditioning principles is applied...
170
Law of Effect01:06

Law of Effect

1.4K
B.F. Skinner, a prominent figure in behavioral psychology, introduced operant conditioning by emphasizing the role of consequences in shaping behavior. This theory builds upon the law of effect proposed by Edward Thorndike, which posits that behaviors followed by satisfying outcomes are likely to be repeated. In contrast, those followed by unsatisfying outcomes are less likely to recur.
Edward Thorndike's foundational work involved studying learning in animals, particularly using puzzle...
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Purposive Learning01:22

Purposive Learning

121
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...
121

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相关实验视频

Updated: Jul 7, 2025

Pavlovian Conditioned Approach Training in Rats
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影响一致的注意力调节了普遍的奖励期望.

Daniel Bennett1, Angela Radulescu2, Sam Zorowitz3

  • 1School of Psychological Sciences, Monash University, Clayton, Australia.

PLoS computational biology
|December 21, 2023
PubMed
概括

积极和消极的情绪影响我们对未来奖励的期望. 这项研究表明,通过改变对刺激特征的注意力,诱导的积极影响提高了奖励期望,而负面影响则降低了奖励期望.

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An Electrophysiology Protocol to Measure Reward Anticipation and Processing in Children
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相关实验视频

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科学领域:

  • 认知神经科学 认知神经科学
  • 情感科学是一种情感科学.
  • 决策 决策 决策 决策

背景情况:

  • 情感状态 (情绪) 与对未来回报的乐观和悲观有关.
  • 对积极或消极特征的关注可能会解释这些预期中的影响相关偏见.

研究的目的:

  • 调查实验诱导的积极和消极影响如何影响基于特征的注意力.
  • 为了确定影响对奖励期望对新兴刺激的影响.

主要方法:

  • 120名参与者完成了一个复合物泛化任务.
  • 眼睛追踪技术监测了参与者的注意力.
  • 计算建模分析了行为数据.

主要成果:

  • 积极影响诱导增加了参与者的奖励期望.
  • 负面影响诱导降低了参与者的奖励期望.
  • 影响一致的注意力转移到刺激特征驱动了这些期望偏差.

结论:

  • 情感状态显著影响奖励期望.
  • 注意分配是将影响与预期偏差联系起来的关键机制.
  • 这些发现提供了对情绪如何塑造普遍的奖励期望的机械洞察力.