Results 21 to 30 of about 103,223 (292)

Assessing uncertainty in dynamic functional connectivity [PDF]

open access: yesNeuroImage, 2017
Functional connectivity (FC) - the study of the statistical association between time series from anatomically distinct regions (Friston, 1994, 2011) - has become one of the primary areas of research in the field surrounding resting state functional magnetic resonance imaging (rs-fMRI). Although for many years researchers have implicitly assumed that FC
Maria Kudela   +2 more
openaire   +2 more sources

Dynamic functional connectivity: Promise, issues, and interpretations [PDF]

open access: yesNeuroImage, 2013
The brain must dynamically integrate, coordinate, and respond to internal and external stimuli across multiple time scales. Non-invasive measurements of brain activity with fMRI have greatly advanced our understanding of the large-scale functional organization supporting these fundamental features of brain function.
R. Matthew Hutchison   +17 more
openaire   +5 more sources

Automatic identification of schizophrenia based on EEG signals using dynamic functional connectivity analysis and 3D convolutional neural network

open access: yes, 2023
Schizophrenia (ScZ) is a devastating mental disorder of the human brain that causes a serious impact of emotional inclinations, quality of personal and social life and healthcare systems.
Wen, Peng   +7 more
core   +1 more source

Searching multiregression dynamic models of resting-state fMRI networks using integer programming [PDF]

open access: yes, 2015
A Multiregression Dynamic Model (MDM) is a class of multivariate time series that represents various dynamic causal processes in a graphical way. One of the advantages of this class is that, in contrast to many other Dynamic Bayesian Networks, the ...
Smith, Jim   +9 more
core   +1 more source

DySCo: A general framework for dynamic functional connectivity. [PDF]

open access: yesPLoS Comput Biol
A crucial challenge in neuroscience involves characterising brain dynamics from high-dimensional brain recordings. Dynamic Functional Connectivity (dFC) is an analysis paradigm that aims to address this challenge. dFC consists of a time-varying matrix (dFC matrix) expressing how pairwise interactions across brain areas change over time.
Alteriis G   +6 more
europepmc   +4 more sources

On the variability of dynamic functional connectivity assessment methods

open access: yesGigaScience, 2023
Dynamic functional connectivity (dFC) has become an important measure for understanding brain function and as a potential biomarker. However, various methodologies have been developed for assessing dFC, and it is unclear how the choice of method affects the results.
Mohammad Torabi   +2 more
openaire   +2 more sources

A spatio-temporal decomposition framework for dynamic functional connectivity in the human brain

open access: yesNeuroImage, 2022
Much recent attention has been directed toward investigating the spatial and temporal organization of brain dynamics, but the rules which constrain the variation of spatio-temporal organization in functional connectivity under different brain states ...
Jinming Xiao   +9 more
doaj   +1 more source

A state-space model for dynamic functional connectivity [PDF]

open access: yes2019 53rd Asilomar Conference on Signals, Systems, and Computers, 2019
Dynamic functional connectivity (DFC) analysis involves measuring correlated neural activity over time across multiple brain regions. Significant regional correlations among neural signals, such as those obtained from resting-state functional magnetic resonance imaging (fMRI), may represent neural circuits associated with rest.
Sourish Chakravarty   +4 more
openaire   +5 more sources

Neural activation and functional connectivity during motor imagery of bimanual everyday actions [PDF]

open access: yes, 2012
Bimanual actions impose intermanual coordination demands not present during unimanual actions. We investigated the functional neuroanatomical correlates of these coordination demands in motor imagery (MI) of everyday actions using functional magnetic ...
Sterr, A   +16 more
core   +1 more source

Dynamic Brain Networks with Prescribed Functional Connectivity

open access: yes2023 62nd IEEE Conference on Decision and Control (CDC), 2023
6 pages, 5 figures, to appear in the proceedings of IEEE CDC ...
Casti, U.   +5 more
openaire   +3 more sources

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