Journal ArticleDOI
Analysis of fMRI Time-Series Revisited
Karl J. Friston,Andrew P. Holmes,Jean-Baptiste Poline,P. J. Grasby,Steven Williams,Richard S. J. Frackowiak,Robert Turner +6 more
TLDR
The approach is predicated on an extension of the general linear model that allows for correlations between error terms due to physiological noise or correlations that ensue after temporal smoothing, and uses the effective degrees of freedom associated with the error term.About:
This article is published in NeuroImage.The article was published on 1995-03-01. It has received 2647 citations till now. The article focuses on the topics: Degrees of freedom (statistics) & Smoothing.read more
Citations
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Journal ArticleDOI
Nonparametric permutation tests for functional neuroimaging: A primer with examples
TL;DR: The standard nonparametric randomization and permutation testing ideas are developed at an accessible level, using practical examples from functional neuroimaging, and the extensions for multiple comparisons described.
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Default-mode network activity distinguishes Alzheimer's disease from healthy aging: Evidence from functional MRI
TL;DR: A goodness-of-fit analysis applied at the individual subject level suggests that activity in the default-mode network may ultimately prove a sensitive and specific biomarker for incipient AD.
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What we can do and what we cannot do with fMRI
TL;DR: An overview of the current state of fMRI is given, and the current understanding of the haemodynamic signals and the constraints they impose on neuroimaging data interpretation are presented.
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Psychophysiological and modulatory interactions in neuroimaging.
Karl J. Friston,Christian Buechel,Gereon R. Fink,John C. Morris,Edmund T. Rolls,Raymond J. Dolan +5 more
TL;DR: Interactions among extrastriate, inferotemporal, and posterior parietal regions during visual processing, under different attentional and perceptual conditions, are focused on.
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Medial prefrontal cortex and self-referential mental activity: Relation to a default mode of brain function
TL;DR: The presence of self-referential mental activity appears to be associated with increases from the baseline in dorsal MPFC, and reductions in ventral MPFC occurred consistent with the fact that attention-demanding tasks attenuate emotional processing.