Related Experiment Video
Updated: May 22, 2026

An Automated T-maze Based Apparatus and Protocol for Analyzing Delay- and Effort-based Decision Making in Free Moving Rodents
Published on: August 2, 2018
Heuristic decision making in medicine
Julian N Marewski1, Gerd Gigerenzer
1University of Lausanne, Faculty of Business and Economics, Department of Organizational Behavior, Lausanne, Switzerland. Julian.Marewski@unil.ch
Insights
Simple decision strategies called heuristics can improve medical choices for doctors and patients. These methods, which use limited information, are often more effective than complex ones and are easy to use.
Area of Science:
- Medical Decision Making
- Cognitive Psychology
- Health Informatics
Background:
- Traditional medical decision-making often assumes more information leads to better outcomes.
- However, cognitive biases and information overload can hinder sound medical judgments.
- Heuristics offer an alternative approach to decision-making in healthcare.
Purpose of the Study:
- To explore the utility of heuristics in medical decision-making for both physicians and patients.
- To compare the effectiveness of heuristics against information-greedy methods in medical diagnosis.
- To identify characteristics of heuristics that make them suitable for healthcare settings.
Main Methods:
- Review and discussion of heuristic use in clinical practice.
- Comparative analysis of heuristic strategies versus regression models in diagnostic scenarios.
- Examination of heuristic features like accuracy, transparency, and accessibility.
Main Results:
- Heuristics, despite using less information, can lead to sound medical decisions.
- These simple strategies often outperform complex, information-intensive methods in medical diagnosis.
- Key features include accuracy, transparency, accessibility, low cost, and time efficiency.
Conclusions:
- Heuristics provide a valuable framework for improving medical decision-making.
- Their efficiency and effectiveness make them highly applicable in healthcare.
- Further research into heuristics, particularly in psychiatry, is warranted.
Abstract:
Can less information be more helpful when it comes to making medical decisions? Contrary to the common intuition that more information is always better, the use of heuristics can help both physicians and patients to make sound decisions. Heuristics are simple decision strategies that ignore part of the available information, basing decisions on only a few relevant predictors. We discuss: (i) how doctors and patients use heuristics; and (ii) when heuristics outperform information-greedy methods, such as regressions in medical diagnosis. Furthermore, we outline those features of heuristics that make them useful in health care settings. These features include their surprising accuracy, transparency, and wide accessibility, as well as the low costs and little time required to employ them. We close by explaining one of the statistical reasons why heuristics are accurate, and by pointing to psychiatry as one area for future research on heuristics in health care.
Related Concept Videos
Heuristics
People often rely on heuristics when faced with an overload of information, limited time, low importance of the decision, limited information, or when a heuristic readily comes to mind. For...
The Availability Heuristic
Decision Making
Automatic decision-making is fast, intuitive, and relies on gut feelings...
Reason and Intuition
Ethical Dilemmas II
Decision Making: Traditional Method
First, a specific claim about the population parameter is decided based on the research question and is stated in a simple form. Further, an opposing statement to this claim is also stated. These statements can act as null and alternative hypotheses, out of which a null hypothesis would be a...
