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相关概念视频

Self-Discrepancy Theory02:45

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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.  
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People can go to great lengths to protect their self-image and present themselves in ways that they want others to see them. Sociologist Erving Goffman presented the idea that a person is like an actor on a stage. Calling his theory dramaturgy, Goffman believed that we use “impression management” to present ourselves to others as we hope to be perceived. Each situation is a new scene, and individuals perform different roles depending on who is present (Goffman, 1959). Think about...
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Self-Evaluation: Self-Enhancement and Self-Verification03:00

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Social psychologists have documented that feeling good about ourselves and maintaining positive self-esteem is a powerful motivator of human behavior (Tavris & Aronson, 2008). In the United States, members of the predominant culture typically think very highly of themselves and view themselves as good people who are above average on many desirable traits (Ehrlinger, Gilovich, & Ross, 2005). Often, our behavior, attitudes, and beliefs are affected when we experience a threat to our...
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Borderline Personality Disorder01:25

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Borderline Personality Disorder is a complex and multifaceted mental health condition characterized by pervasive instability in interpersonal relationships, self-image, emotions, and impulse control. This instability manifests in extreme emotional reactions, fear of abandonment, and self-destructive behaviors. The disorder significantly impacts daily functioning, often leading to distress in both personal and professional domains.
Genetic and Environmental Contributions
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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.
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Dependent personality disorder and obsessive-compulsive personality disorder are two separate psychological conditions that influence behavior, relationships, and overall life functioning. Though both involve maladaptive behaviors, their core characteristics and motivations differ significantly.
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相关实验视频

Updated: Jun 11, 2025

Three Laboratory Procedures for Assessing Different Manifestations of Impulsivity in Rats
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自毁冲动的价值调节 自毁冲动的价值调节

Zhe Liu1, Robert Reiner1, Yonatan Loewenstein2

  • 1Edmond and Lily Safra Center for Brain Sciences, The Hebrew University of Jerusalem, Jerusalem, Israel.

Biological psychiatry
|September 30, 2024
PubMed
概括

更高的奖励增加了小鼠的冲动行为,这些行为是由偏见驱动的,而不是寻求奖励的失败. 多巴胺信号显示,冲动性源于无法抑制行为尽管负面后果.

关键词:
多巴胺是一种多巴胺.冲动性是一种冲动性.视觉遗传学 视觉遗传学帕夫洛夫的偏见是有偏见的摄影测量是一种摄影仪.强化学习是一种强化学习.

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相关实验视频

Last Updated: Jun 11, 2025

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科学领域:

  • 神经科学是一个神经科学.
  • 认知科学 认知科学
  • 行为经济学是一种行为经济学.

背景情况:

  • 冲动控制对认知至关重要,但奖励价值和冲动性之间的关系尚不清楚.
  • 现有的理论认为冲动性可能与内部奖励,探索或固有的偏见有关.

研究的目的:

  • 研究奖励大小如何影响冲动行为.
  • 用多巴胺信号来确定潜在的奖励驱动的冲动性的神经机制.

主要方法:

  • 训练有素的雄性小鼠为了获得可变的奖励而拒绝.
  • 测量和光遗传学操纵的多巴胺释放在腹状条纹体.

主要成果:

  • 增加的奖励大小与更高的冲动性相关.
  • 冲动行为最好用帕夫洛夫偏见模型来解释.
  • 过早时的负多巴胺信号表明,尽管有负面结果,但无法抑制作用.

结论:

  • 价值在调节冲动行为方面发挥着重要作用.
  • 多巴胺系统通过价值学习机制调节冲动性.