User profiles for K. J. Friston
Karl FristonUniversity College London Verified email at ucl.ac.uk Cited by 343477 |
Functional and effective connectivity: a review
KJ Friston - Brain connectivity, 2011 - liebertpub.com
… from its original formulation in Friston et al. (1993) and an early synthesis in Friston (1995). …
David OCosmelli DFriston KJ2004Evaluation of different measures of functional connectivity …
David OCosmelli DFriston KJ2004Evaluation of different measures of functional connectivity …
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 …
arrives at a model of perceptual inference and learning that can explain a remarkable range of …
Statistical parametric maps in functional imaging: a general linear approach
KJ Friston, AP Holmes, KJ Worsley… - Human brain …, 1994 - Wiley Online Library
… may reflect symptom severity [Friston et al., … [Friston et al., 1992bl. Another example of an
interaction is between cognitive activation and the effects of a centrally acting drug [Friston et al.…
interaction is between cognitive activation and the effects of a centrally acting drug [Friston et al.…
Models of brain function in neuroimaging
KJ Friston - Annu. Rev. Psychol., 2005 - annualreviews.org
Inferences about brain function, using neuroimaging data, rest on models of how the data
were caused. These models can be quite diverse, ranging from conceptual models of …
were caused. These models can be quite diverse, ranging from conceptual models of …
Classical and Bayesian inference in neuroimaging: theory
This paper reviews hierarchical observation models, used in functional neuroimaging, in a
Bayesian light. It emphasizes the common ground shared by classical and Bayesian methods …
Bayesian light. It emphasizes the common ground shared by classical and Bayesian methods …
[HTML][HTML] Attention, uncertainty, and free-energy
H Feldman, KJ Friston - Frontiers in human neuroscience, 2010 - frontiersin.org
We suggested recently that attention can be understood as inferring the level of uncertainty
or precision during hierarchical perception. In this paper, we try to substantiate this claim …
or precision during hierarchical perception. In this paper, we try to substantiate this claim …
Action and behavior: a free-energy formulation
We have previously tried to explain perceptual inference and learning under a free-energy
principle that pursues Helmholtz’s agenda to understand the brain in terms of energy …
principle that pursues Helmholtz’s agenda to understand the brain in terms of energy …
[BOOK][B] Statistical parametric mapping: the analysis of functional brain images
In an age where the amount of data collected from brain imaging is increasing constantly, it
is of critical importance to analyse those data within an accepted framework to ensure proper …
is of critical importance to analyse those data within an accepted framework to ensure proper …
Dynamic causal modelling
KJ Friston, L Harrison, W Penny - Neuroimage, 2003 - Elsevier
In this paper we present an approach to the identification of nonlinear input–state–output
systems. By using a bilinear approximation to the dynamics of interactions among states, the …
systems. By using a bilinear approximation to the dynamics of interactions among states, the …
Functional and effective connectivity in neuroimaging: a synthesis
KJ Friston - Human brain mapping, 1994 - Wiley Online Library
… This data is the same as that used in Friston et al. [1993a]. To facilitate intersubject pooling,
… Whole brain differences were removed using ANCOVA [Friston et al., 19901 and the …
… Whole brain differences were removed using ANCOVA [Friston et al., 19901 and the …