Results 21 to 30 of about 3,878,522 (308)

Resting State fMRI Reveals Diminished Functional Connectivity in a Mouse Model of Amyloidosis [PDF]

open access: yes, 2013
Introduction: Functional connectivity (FC) studies have gained immense popularity in the evaluation of several neurological disorders, such as Alzheimer’s disease (AD). AD is a complex disorder, characterised by several pathological features. The problem
Rafael Delgado Y Palacios   +36 more
core   +2 more sources

Latent functional connectivity underlying multiple brain states [PDF]

open access: yes, 2022
Functional connectivity (FC) studies have predominantly focused on resting state, where ongoing dynamics are thought to reflect the brain's intrinsic network architecture, which is thought to be broadly relevant because it persists across brain states (i.
Arnemann, K.L.   +15 more
core   +1 more source

Connectivity of submodular functions

open access: yesDiscrete Mathematics, 1992
This paper relates the connectivity of submodular functions \(f\) to that of certain submodular functions which are derived from \(f\). Here the function \(f\) on \(S\) is submodular if \(f(A)+f(B)\geq f(A\cup B)+f(A\cap B)\) for all subsets \(A\) and \(B\) of \(S\).
James G. Oxley, Geoff Whittle
openaire   +2 more sources

Biophysical Modulations of Functional Connectivity [PDF]

open access: yesBrain Connectivity, 2011
Resting-state low frequency oscillations have been detected in many functional magnetic resonance imaging (MRI) studies and appear to be synchronized between functionally related areas. Converging evidence from MRI and other imaging modalities suggest that this activity has an intrinsic neuronal origin.
Peltier, Scott J., Shah, Yash
openaire   +3 more sources

Differentiating the functional contributions of resting connectivity networks to memory decision-making : fMRI support for multi-stage control processes [PDF]

open access: yes, 2015
Neural substrates of memory control are engaged when participants encounter unexpected mnemonic stimuli (e.g., a new word when told to expect an old word).
Cavin, Ian   +6 more
core   +1 more source

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

Functional Connectivity in Aging [PDF]

open access: yes, 2019
A large body of research shows that aging is accompanied by localized changes in brain structure and function. However, over the past decade the neuroimaging community has begun to recognize the importance of investigating the brain as a network.
Franziskus Liem   +3 more
openaire   +2 more sources

Insula Functional Connectivity in Schizophrenia [PDF]

open access: yesSchizophrenia Research, 2019
Abstract The insula is structurally abnormal in schizophrenia, demonstrating robust reductions in gray matter volume, cortical thickness, and altered gyrification during prodromal, early and chronic stages of the illness. Despite compelling structural alterations, less is known about its functional connectivity, limited by studies ...
Julia M. Sheffield   +4 more
openaire   +3 more sources

The Functional Relevance of Task-State Functional Connectivity [PDF]

open access: yesThe Journal of Neuroscience, 2020
Resting-state functional connectivity has provided substantial insight into intrinsic brain network organization, yet the functional importance of task-related change from that intrinsic network organization remains unclear. Indeed, such task-related changes are known to be small, suggesting they may have only minimal functional relevance ...
Michael W. Cole   +3 more
openaire   +2 more sources

Changes in functional connectivity within the rat striatopallidal axis during global brain activation in vivo [PDF]

open access: yes, 2006
The functional organization of the basal ganglia (BG) is often defined according to one of two opposing schemes. The first proposes multiple, essentially independent channels of information processing.
Sharott, A   +5 more
core   +1 more source

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