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相关概念视频

Punishment01:27

Punishment

158
Negative reinforcement and punishment are often confused but serve distinct functions in behavior modification. Reinforcement, whether positive or negative, increases the likelihood of a desired behavior, while punishment decreases it.
Punishment can be positive or negative. Positive punishment involves adding an undesirable stimulus, such as scolding, to decrease a behavior. Negative punishment involves removing a desirable stimulus, such as taking away a favorite toy, to decrease behavior....
158
Timing and Consequences on Behavior01:08

Timing and Consequences on Behavior

84
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...
84
Operant Conditioning01:21

Operant Conditioning

1.5K
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...
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Antisocial Personality Disorder01:24

Antisocial Personality Disorder

45
Antisocial personality disorder is a chronic mental health condition characterized by persistent patterns of disregard for the rights and well-being of others. Individuals with antisocial personality disorder exhibit behaviors that include deceitfulness, impulsivity, irresponsibility, aggression, and a profound lack of empathy. These traits often manifest early in life and persist into adulthood, leading to significant personal, social, and legal consequences.
Behavioral Characteristics and...
45
Optimal Arousal Theory01:23

Optimal Arousal Theory

151
The optimal arousal theory suggests that performance is maximized when an individual experiences a moderate level of arousal. This theory is closely tied to the Yerkes-Dodson law, which illustrates an inverted U-shaped relationship between arousal and performance. The law, formulated by psychologists Robert Yerkes and John Dodson, implies an ideal arousal level for optimal performance, and deviations from this level can lead to declines in effectiveness.
Inverted U-Shaped Performance Curve
The...
151
The Behavioral Perspective on Personality01:19

The Behavioral Perspective on Personality

304
Behaviorists view personality as primarily shaped by environmental reinforcements and consequences. According to this perspective, behavior is influenced by external stimuli, and individuals adjust their actions based on rewards and punishments. Over time, learning histories — accumulated patterns of reinforcement — play a significant role in shaping personality. Behaviors that lead to positive outcomes are reinforced, while those resulting in negative outcomes are diminished.
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相关实验视频

Updated: Jun 12, 2025

A Conflict Model of Reward-seeking Behavior in Male Rats
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惩罚敏感性和冒险倾向之间的关系.

Jie Zhao1, Rong Zhang2, Tingyong Feng3

  • 1Faculty of Psychology, Southwest University, Chongqing 400715, China.

Brain and cognition
|September 21, 2024
PubMed
概括

较高的惩罚敏感度与较少的冒险行为相关. 这项研究确定了大脑中的神经通路,特别是涉及右侧轨道前皮层和右侧中间状圈,作为这种关系的基础.

关键词:
惩罚的敏感性 惩罚的敏感性休息状态的功能连接.倾向于承担风险的倾向性基于voxel的形态测量方法

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Pavlovian Conditioned Approach Training in Rats
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科学领域:

  • 神经科学是一个神经科学.
  • 行为科学 行为科学
  • 认知心理学 认知心理学

背景情况:

  • 惩罚的敏感性与风险承担的减少有关.
  • 这种关联背后的神经机制尚不清楚.

研究的目的:

  • 调查惩罚敏感性和冒险倾向之间的关系的神经基础.
  • 探索灰色物质体积和功能连接在这个协会中的作用.

主要方法:

  • 在594名参与者身上利用了静止状态功能连接 (RSFC) 和基于voxel的形态测量 (VBM).
  • 检查了大脑结构,功能连接和行为措施之间的相关性.
  • 进行调解分析以了解影响的途径.

主要成果:

  • 证实了惩罚敏感性和冒险行为之间的负面关联.
  • 在右轨道前皮层 (ROFC) 中发现了惩罚灵敏度和灰质体积之间的正相关性.
  • 确定了ROFC-右侧中间状回 (RMTG) 功能连接性和惩罚敏感性之间的积极关联.

结论:

  • ROFC-RMTG的功能连接介绍了惩罚敏感性对冒险的影响.
  • 这种神经通路为惩罚敏感性与冒险的关系提供了新的视角.