Karl J. Friston

About the Author

Karl J. Friston is a pioneering neuroscientist and theoretical biologist whose groundbreaking work has reshaped our understanding of the brain and cognition. As a professor at University College London and a leading figure in computational neuroscience, Friston developed the free energy principle, a unifying framework that explains how living systems, from single cells to human minds, minimize surprise and adapt to their environments through predictive processing. His seminal book, Active Inference: The Free Energy Principle in Mind, Brain, and Behavior, elucidates these concepts, bridging philosophy, psychology, and artificial intelligence. With over a thousand publications, Friston's interdisciplinary approach continues to influence fields ranging from machine learning to psychiatry, offering profound insights into the mechanisms of perception, action, and learning.