Новый год, новая единая теория мозга
(не совсем новая, просто новый обзор в NRN)
Nature Reviews Neuroscience, advance online publication, Published online 13 January 2010 | doi:10.1038/nrn2787
The free-energy principle: a unified brain theory?
Karl Friston
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 Darwinism) and physical (for example, information theory and optimal control theory) sciences from the free-energy perspective. Crucially, one key theme runs through each of these theories - optimization. Furthermore, if we look closely at what is optimized, the same quantity keeps emerging, namely value (expected reward, expected utility) or its complement, surprise (prediction error, expected cost). This is the quantity that is optimized under the free-energy principle, which suggests that several global brain theories might be unified within a free-energy framework.
Ссылки
Страничка профессора Карла Фристона, можно скачать полнотекстовые статьи
P.S. And about the not-so-free energy - an interview with Al Bartlett.
Nature Reviews Neuroscience, advance online publication, Published online 13 January 2010 | doi:10.1038/nrn2787
The free-energy principle: a unified brain theory?
Karl Friston
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 Darwinism) and physical (for example, information theory and optimal control theory) sciences from the free-energy perspective. Crucially, one key theme runs through each of these theories - optimization. Furthermore, if we look closely at what is optimized, the same quantity keeps emerging, namely value (expected reward, expected utility) or its complement, surprise (prediction error, expected cost). This is the quantity that is optimized under the free-energy principle, which suggests that several global brain theories might be unified within a free-energy framework.
Ссылки
P.S. And about the not-so-free energy - an interview with Al Bartlett.