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相关概念视频

Decision Making01:20

Decision Making

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Decision-making is a fundamental cognitive process that involves evaluating alternatives and selecting among them. This process can range from simple choices, such as deciding what to wear, to complex decisions, like choosing a major in college or a career path. The complexity of the decision often dictates the approach we use, which can be broadly categorized into two types: automatic and controlled decision-making.
Automatic decision-making is fast, intuitive, and relies on gut feelings...
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Thinking Too Much Impairs Decision-Making08:34

Thinking Too Much Impairs Decision-Making

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Source: Peter Mende-Siedlecki & Jay Van Bavel—New York University
When we are considering a tough choice between two or more attractive options, we often end up actively weighing the pros and cons of each alternative. By reflecting on their advantages and disadvantages, we attempt to fit a complex, subjective decision into an orderly set of criteria. However, research in psychology suggests that this sort of introspective approach might not always yield the most optimal outcomes.1
In...
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Types of Decisions and the Decision Process01:24

Types of Decisions and the Decision Process

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The organizational buying process is structured and methodical, involving multiple stakeholders and requiring significant financial commitments. Unlike consumer purchasing, business buyers face complex decisions that demand a deep understanding of technical specifications and careful coordination among departments. These decisions are made within a framework that seeks to balance cost, quality, and efficiency and ensure long-term supplier relationships.
Problem Recognition and Need...
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Decision-making and the Iowa Gambling Task08:22

Decision-making and the Iowa Gambling Task

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Source: Laboratories of Jonas T. Kaplan and Sarah I. Gimbel—University of Southern California
Decision-making is an important component of human executive function, in which a choice about a course of action or cognition is made from many possibilities. Damage to the inferior parts of the frontal lobes can affect a person's ability to make good decisions. However, while decision-making deficits can have a large impact on one's life, these deficits can be difficult to quantify in the...
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Decision-making Through Net Present Value01:22

Decision-making Through Net Present Value

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Net Present Value (NPV) is a crucial financial tool that helps organizations make informed decisions about investments and projects by comparing the present value of cash inflows with cash outflows. As a critical capital budgeting tool, NPV accounts for the time value of money, making it an essential method for evaluating long-term investments.
NPV serves multiple purposes in decision-making:
474
Decision Making: P-value Method01:09

Decision Making: P-value Method

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The process of hypothesis testing based on the P-value method includes calculating the P- value using the sample data and interpreting it.
First, a specific claim about the population parameter is proposed. The claim is based on the research question and is stated in a simple form. Further, an opposing statement to the claim  is also stated. These statements can act as null and alternative hypotheses:  a null hypothesis would be a neutral statement while the alternative hypothesis can...
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相关实验视频

Updated: Jan 20, 2026

Introspection Illusion: Reason-Analysis Impairs Decision-Making
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Introspection Illusion: Reason-Analysis Impairs Decision-Making

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信息改和不民主的决定

Alexander J Stewart1, Mohsen Mosleh2, Marina Diakonova3

  • 1Department of Biology and Biochemistry, University of Houston, Houston, TX, USA. astewar6@central.uh.edu.

Nature
|September 6, 2019
PubMed
概括

网络结构可以通过"信息改"来扭曲集体决策. 策略性地放置热心分子和网络设计, 即使是在大群体中,

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相关实验视频

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科学领域:

  • 社会科学
  • 网络科学
  • 计算社会科学

背景情况:

  • 集体决策依赖于来自不同来源的信息.
  • 信息流往往受到社交网络的限制, 容易被机器人或狂热分子操纵.
  • 了解网络结构如何影响集体结果对于民主进程至关重要.

研究的目的:

  • 在集体决策中模拟和分析信息改现象.
  • 调查网络拓和有影响力的代理人的战略位置如何影响投票结果.
  • 在实验和现实社会网络中识别和量化信息改.

主要方法:

  • 通过影响网络的参与者开发选民游戏模式
  • 数学分析揭示了信息改的原理.
  • 通过2520人参与的社交网络实验验证理论预测.
  • 分析现实世界的网络,包括在线政治讨论和立法数据.

主要成果:

  • 即使党派规模和影响力相等,
  • 策略性地放置的狂热分子可以诱导信息改和偏见的结果.
  • 实验数据证实了信息改的预测效果.
  • 在网上政治讨论和历史立法数据中发现了信息改.

结论:

  • 影响网络的结构可以系统地扭曲集体决策.
  • 信息操纵是集体情报中的一个漏洞,
  • 广泛的信息改可能导致群体陷入局,并阻止达成共识,造成社会困境.