User profiles for Karl Friston

Karl Friston

University College London
Verified email at ucl.ac.uk
Cited by 343477

The free-energy principle: a unified brain theory?

K Friston - Nature reviews neuroscience, 2010 - nature.com
A free-energy principle has been proposed recently that accounts for action, perception and
learning. This Review looks at some key brain theories in the biological (for example, neural …

The free-energy principle: a rough guide to the brain?

K Friston - Trends in cognitive sciences, 2009 - cell.com
This article reviews a free-energy formulation that advances Helmholtz's agenda to find
principles of brain function based on conservation laws and neuronal energy. It rests on …

A free energy principle for the brain

K Friston, J Kilner, L Harrison - Journal of physiology-Paris, 2006 - Elsevier
By formulating Helmholtz’s ideas about perception, in terms of modern-day theories, one
arrives at a model of perceptual inference and learning that can explain a remarkable range of …

[HTML][HTML] The history of the future of the Bayesian brain

K Friston - NeuroImage, 2012 - Elsevier
The slight perversion of the original title of this piece (The Future of the Bayesian Brain) reflects
my attempt to write prospectively about ‘Science and Stories’ over the past 20years. I will …

[HTML][HTML] A free energy principle for biological systems

F Karl - Entropy, 2012 - mdpi.com
This paper describes a free energy principle that tries to explain the ability of biological systems
to resist a natural tendency to disorder. It appeals to circular causality of the sort found in …

Free-energy and the brain

KJ Friston, KE Stephan - Synthese, 2007 - Springer
If one formulates Helmholtz’s ideas about perception in terms of modern-day theories one
arrives at a model of perceptual inference and learning that can explain a remarkable range of …

A theory of cortical responses

K Friston - … transactions of the Royal Society B …, 2005 - royalsocietypublishing.org
This article concerns the nature of evoked brain responses and the principles underlying
their generation. We start with the premise that the sensory brain has evolved to represent or …

Predictive coding under the free-energy principle

K Friston, S Kiebel - … transactions of the Royal Society B …, 2009 - royalsocietypublishing.org
This paper considers prediction and perceptual categorization as an inference problem that
is solved by the brain. We assume that the brain models the world as a hierarchy or cascade …

A free energy principle for a particular physics

K Friston - arXiv preprint arXiv:1906.10184, 2019 - arxiv.org
This monograph attempts a theory of every 'thing' that can be distinguished from other things
in a statistical sense. The ensuing statistical independencies, mediated by Markov blankets, …

Functional integration and inference in the brain

K Friston - Progress in neurobiology, 2002 - Elsevier
Self-supervised models of how the brain represents and categorises the causes of its
sensory input can be divided into two classes: those that minimise the mutual information (ie …