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相关概念视频

Hindsight Biases01:12

Hindsight Biases

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?
Self-Serving Bias01:29

Self-Serving Bias

Self-serving bias is a cognitive phenomenon in which individuals attribute positive outcomes to internal factors such as their abilities, intelligence, or effort while attributing negative outcomes to external circumstances. This cognitive distortion helps maintain self-esteem but can also impede objective self-assessment.Theoretical Explanations of Self-Serving BiasTwo primary theories explain the self-serving bias: the cognitive explanation and the motivational explanation.The cognitive...
Unrealistic Optimism Bias01:30

Unrealistic Optimism Bias

Unrealistic optimism bias is the tendency to overestimate the likelihood of positive outcomes. This cognitive bias makes individuals believe they are less likely to experience failures, setbacks, or risks and more likely to succeed than others. For example, people may assume they are less prone to health issues, accidents, or financial struggles than their peers, even when they share similar risk factors.One key component of this bias is the above-average effect, where individuals perceive...
Confirmation Biases01:31

Confirmation Biases

The confirmation bias is the tendency to focus on information that confirms our existing beliefs and ignore information that is inconsistent with our expectations. For example, if you think that your professor is not very nice, you notice all of the instances of rude behavior exhibited by the professor while ignoring the countless pleasant interactions he is involved in on a daily basis. Have you ever fallen prey to the confirmation bias, either as the source or target of such bias?
Confidence Coefficient01:24

Confidence Coefficient

The confidence coefficient is also known as the confidence level or degree of confidence. It is the percent expression for the probability, 1-α, that the confidence interval contains the true population parameter assuming that the confidence interval is obtained after sufficient unbiased sampling; for example, if the CL = 90%, then in 90 out of 100 samples the interval estimate will enclose the true population parameter. Here α is the area under the curve, distributed equally under both the...
Evolutionary Psychology01:20

Evolutionary Psychology

Evolutionary psychology explores the origins of human behavior and mental processes by framing them within the context of natural selection, a theory famously propounded by Charles Darwin. This field asserts that many behaviors common across human societies — ranging from instinctive fear reactions to complex social interactions — arose as evolutionary adaptations. These adaptations enhanced the survival and reproductive success of our ancestors, thereby becoming embedded in the human psyche...

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相关实验视频

Updated: May 29, 2026

Continuous Theta Burst Stimulation of the Posterior Medial Frontal Cortex to Experimentally Reduce Ideological Threat Responses
06:42

Continuous Theta Burst Stimulation of the Posterior Medial Frontal Cortex to Experimentally Reduce Ideological Threat Responses

Published on: September 28, 2018

过度自信的演变

Dominic D P Johnson1, James H Fowler

  • 1Politics and International Relations, University of Edinburgh, Edinburgh EH8 9LD, UK. dominic.johnson@ed.ac.uk

Nature
|September 17, 2011
PubMed
概括
此摘要是机器生成的。

过度自信,相信自己比现实更好,可以最大限度地提高个人的健康状况,并导致整个人口过度自信. 当资源效益超过竞争成本时,这种进化策略是稳定的.

更多相关视频

The Collective Trust Game: An Online Group Adaptation of the Trust Game Based on the HoneyComb Paradigm
06:18

The Collective Trust Game: An Online Group Adaptation of the Trust Game Based on the HoneyComb Paradigm

Published on: October 20, 2022

相关实验视频

Last Updated: May 29, 2026

Continuous Theta Burst Stimulation of the Posterior Medial Frontal Cortex to Experimentally Reduce Ideological Threat Responses
06:42

Continuous Theta Burst Stimulation of the Posterior Medial Frontal Cortex to Experimentally Reduce Ideological Threat Responses

Published on: September 28, 2018

The Collective Trust Game: An Online Group Adaptation of the Trust Game Based on the HoneyComb Paradigm
06:18

The Collective Trust Game: An Online Group Adaptation of the Trust Game Based on the HoneyComb Paradigm

Published on: October 20, 2022

科学领域:

  • 进化生物学是进化的生物学.
  • 行为经济学是一种行为经济学.
  • 心理学 心理学 心理学

背景情况:

  • 自信对于在许多领域取得成功至关重要.
  • 过度自信或夸张的自信可能会带来诸如提高野心和坚持等优势.
  • 然而,过度自信也导致了糟糕的决策,使其进化稳定性成为一个难题.

研究的目的:

  • 使用基于代理的模型研究过度自信的进化稳定性.
  • 确定在哪些条件下,过度自信,而不是准确的自我评估,是一种进化稳定的策略.

主要方法:

  • 开发了一个演化模型,模拟了不同程度的自信 (自信和过度自信) 的种群.
  • 在不同的资源竞争场景下分析了不同信念策略的健康结果和稳定性.

主要成果:

  • 发现过度自信可以最大限度地提高个体健康,并在特定条件下导致进化稳定的群体.
  • 准确,公正的自我信念策略在有限的环境条件下才稳定.
  • 人口过度自信的普遍性与资源效益与竞争成本之间的平衡有关.

结论:

  • 过度自信可能是一个进化上有利的策略,尽管有潜在的缺点,但它促进了成功.
  • 这些发现有助于解释人类人口过度自信的持久性及其在各种社会现象中的作用.
  • 了解过度自信的进化基础是减轻其负面后果的关键.