About the Authors

Karl Friston
The Wellcome Trust Centre of Neuroimaging, University College London, London, United Kingdom

Corresponding Author


Competing Interests

The author has declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: KJF. Performed the experiments: KJF. Analyzed the data: KJF. Contributed reagents/materials/analysis tools: KJF. Wrote the paper: KJF.