Related Experiment Video
Updated: Jun 26, 2025
05:57
Fat Preference: A Novel Model of Eating Behavior in Rats
Published on: June 27, 2014
13.2K
Foraging in a non-foraging task: Fitness maximization explains human risk preference dynamics under changing
Yasuhiro Mochizuki1, Norihiro Harasawa2, Mayank Aggarwal2
1Center for Data Science, Waseda University, Shinjuku-ku, Tokyo, Japan.
Plos Computational Biology
|May 13, 2024
Summary
Human risk preference dynamically changes based on environmental conditions, aligning with fitness maximization principles. This suggests a generalizable ethological explanation for economic decision-making dynamics.
Area of Science:
- Behavioral Economics
- Decision Science
- Ethology
Background:
- Risk preference changes in independent economic decisions lack a unified explanation.
- Foraging theory tasks link risky choices to fitness maximization and dynamic risk preference.
Purpose of the Study:
- To test if fitness maximization explains risk preference dynamics in non-foraging tasks.
- To investigate the influence of environmental richness on decision-making.
Main Methods:
- Two online experiments involving series of independent risky economic decisions.
- Participants' decisions were observed under varying environmental richness.
Main Results:
- Risk preferences were influenced by current and past environmental conditions.
- Participants exhibited greater risk aversion in rich versus poor environments.
Conclusions:
- Observed risk preference dynamics align with the principle of fitness maximization.
- Fitness maximization may offer a generalizable framework for understanding dynamic economic preferences.
Related Concept Videos
01:06Natural Selection and Mating Preferences
101
The principle of natural selection posits that organisms better adapted to their environment are more likely to survive and reproduce. This principle is closely intertwined with mating preferences, a key aspect of sexual selection, which evolutionary psychologists believe is driven by instincts to propagate one's genes. Such instincts significantly influence mating behaviors and preferences between genders.
Females, due to their biological roles in conception, pregnancy, and nursing,...
Females, due to their biological roles in conception, pregnancy, and nursing,...
101
01:20Evolutionary Psychology
262
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...
262
01:23Optimal Arousal Theory
172
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...
Inverted U-Shaped Performance Curve
The...
172
01:38Limits to Natural Selection
31.2K
Organisms that are well-adapted to their environment are more likely to survive and reproduce. However, natural selection does not lead to perfectly adapted organisms. Several factors constrain natural selection.
31.2K
01:15Natural Selection and Adaptation
201
Natural selection, a fundamental concept in evolutionary biology, is the mechanism by which evolution is driven, favoring organisms that are best adapted to their environments. This process enhances their chances of survival and reproduction. Adaptation, a key outcome of this process, involves genetic modifications that optimize an organism's functionality under specific environmental challenges, such as extreme cold or thinner air at high altitudes.
Beyond physical adaptations,...
Beyond physical adaptations,...
201
01:29Life Histories
17.9K
Overview
17.9K