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Updated: Sep 21, 2025

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Perspectives on Neuroscience
Published on: July 31, 2007
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Applying the Free Energy Principle to Complex Adaptive Systems
Paul B Badcock1,2, Maxwell J D Ramstead3,4, Zahra Sheikhbahaee5
1Centre for Youth Mental Health, The University of Melbourne, Melbourne, VIC 3010, Australia.
Entropy (Basel, Switzerland)
|May 28, 2022
Summary
The free energy principle explains how self-organizing systems, including the brain, adaptively behave based on beliefs. This unified model offers insights into biological and artificial intelligence.
Area of Science:
- Neuroscience
- Computational Biology
- Artificial Intelligence
Background:
- The free energy principle (FEP) provides a unified framework for understanding adaptive, belief-driven behavior in self-organizing systems.
- FEP gained prominence in the early 2000s as a comprehensive model of brain function and biological processes.
Discussion:
- FEP posits that systems minimize prediction errors by updating beliefs or acting on the environment.
- This principle offers a Bayesian interpretation of perception, action, and learning.
Key Insights:
- FEP integrates diverse phenomena such as perception, action, attention, and learning under a single theoretical umbrella.
- It provides a mathematical formulation for understanding how biological systems maintain their integrity and adapt to changing environments.
Outlook:
- Future research can explore FEP's application in developing more sophisticated artificial intelligence and understanding neurological disorders.
- Continued investigation into FEP may unify disparate fields within neuroscience and cognitive science.
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