Results 41 to 50 of about 704,566 (347)

Functional connectivity changes and their relationship with clinical disability and white matter integrity in patients with relapsing-remitting multiple sclerosis [PDF]

, 2015
Background and objective: To define the pathological substrate underlying disability in multiple sclerosis by evaluating the relationship of resting-state functional connectivity with microstructural brain damage, as assessed by diffusion tensor maging ...
Filippini, N, Pantano, Patrizia, Petsas, Nikolaos, Piattella, MARIA CRISTINA, Pozzilli, Carlo, Prosperini, Luca, Sbardella, Emilia, Tona, Francesca, Upadhyay, Neeraj   +8 more
core   +1 more source

Disambiguating brain functional connectivity

NeuroImage, 2018
Functional connectivity (FC) analyses of correlations of neural activity are used extensively in neuroimaging and electrophysiology to gain insights into neural interactions. However, analyses assessing changes in correlation fail to distinguish effects produced by sources as different as changes in neural signal amplitudes or noise levels.
Duff, EP, Makin, T, Cottaar, M, Smith, SM, Woolrich, MW   +4 more
openaire   +4 more sources

Resting state connectivity and cognitive performance in adults with cerebral autosomal-dominant arteriopathy with subcortical infarcts and leukoencephalopathy [PDF]

, 2016
Cognitive impairment is an inevitable feature of cerebral autosomal-dominant arteriopathy with subcortical infarcts and leukoencephalopathy (CADASIL), affecting executive function, attention and processing speed from an early stage.
Cullen, Breda, Kalladka, Dheeraj, Krishnadas, Rajeev, López-González, Maria R., Moreton, Fiona C., Muir, Keith W., Santosh, Celestine, Schwarzbauer, Christian, Stringer, Michael S.   +8 more
core   +1 more source

Autism-associated Nf1 deficiency disrupts corticocortical and corticostriatal functional connectivity in human and mouse

Neurobiology of Disease, 2019
Children with the autosomal dominant single gene disorder, neurofibromatosis type 1 (NF1), display multiple structural and functional changes in the central nervous system, resulting in neuropsychological cognitive abnormalities.
Ben Shofty, Eyal Bergmann, Gil Zur, Jad Asleh, Noam Bosak, Alexandra Kavushansky, F. Xavier Castellanos, Liat Ben-Sira, Roger J. Packer, Gilbert L. Vezina, Shlomi Constantini, Maria T. Acosta, Itamar Kahn   +12 more
doaj   +1 more source

Spectral mapping of brain functional connectivity from diffusion imaging. [PDF]

, 2018
Understanding the relationship between the dynamics of neural processes and the anatomical substrate of the brain is a central question in neuroscience.
Bassett, Danielle S, Becker, Cassiano O, Grafton, Scott T, Miller, Michael B, Pappas, George J, Pequito, Sérgio, Preciado, Victor M   +6 more
core   +3 more sources

Juvenile myoclonic epilepsy has hyper dynamic functional connectivity in the dorsolateral frontal cortex

NeuroImage: Clinical, 2019
Purpose: Characterize the static and dynamic functional connectivity for subjects with juvenile myoclonic epilepsy (JME) using a quantitative data-driven analysis approach.
Yanlu Wang, Ivanka Savic Berglund, Martin Uppman, Tie-Qiang Li   +3 more
doaj   +1 more source

Markov models for fMRI correlation structure: is brain functional connectivity small world, or decomposable into networks? [PDF]

, 2012
Correlations in the signal observed via functional Magnetic Resonance Imaging (fMRI), are expected to reveal the interactions in the underlying neural populations through hemodynamic response.
A. Gramfort, Achard, Amaral, B. Thirion, Bassett, Beckmann, Bekinschtein, Bialonski, Bickel, Biswal, Bullmore, Calhoun, Chan, Chinn, Conturo, Cordes, Cuthill, Damoiseaux, Dawid, Dehaene, Dempster, Deuker, Eguiluz, Fair, Fair, Felleman, Finger, Fisher, Fox, Fox, Friedman, Friston, G. Varoquaux, Giudici, Goodale, Greicius, Gross, Hagmann, Humphries, Ioannides, J.B. Poline, Kiviniemi, Lauritzen, Le Bihan, Ledoit, Marlin, Marrelec, Papadimitriou, Raichle, Ramachandran, Robins, Rothman, Rütimann, Sadaghiani, Salvador, Seeley, Seeley, Shulman, Smith, Smith, Spirtes, Sporns, Sporns, Sporns, Stam, Stephan, Strogatz, Tononi, Tononi, Tzourio-Mazoyer, Van Den Heuvel, Varoquaux, Wang, Watts   +73 more
core   +6 more sources

Connectivity functions and polymatroids

Advances in Applied Mathematics, 2016
A {\em connectivity function on} a set $E$ is a function $ :2^E\rightarrow \mathbb R$ such that $ (\emptyset)=0$, that $ (X)= (E-X)$ for all $X\subseteq E$ and that $ (X\cap Y)+ (X\cup Y)\leq (X)+ (Y)$ for all $X,Y \subseteq E$. Graphs, matroids and, more generally, polymatroids have associated connectivity functions.
Jowett, Susan, Mo, Songbao, Whittle, Geoff   +2 more
openaire   +2 more sources

Abnormal intra- and inter-network functional connectivity of brain networks in early-onset Parkinson’s disease and late-onset Parkinson’s disease

Frontiers in Aging Neuroscience, 2023
ObjectiveThe purpose of this study is to look into the altered functional connectivity of brain networks in Early-Onset Parkinson’s Disease (EOPD) and Late-Onset Parkinson’s Disease (LOPD), as well as their relationship to clinical symptoms.MethodsA ...
Fan Zhou, ChangLian Tan, Chendie Song, Min Wang, Jiaying Yuan, Yujing Liu, Sainan Cai, QinRu Liu, Qin Shen, Yuqing Tang, Xu Li, Haiyan Liao   +11 more
doaj   +1 more source

Mechanisms of parasite‐mediated disruption of brain vessels

FEBS Letters, EarlyView.
Parasites can affect the blood vessels of the brain, often causing serious neurological problems. This review explains how different parasites interact with and disrupt these vessels, what this means for brain health, and why these processes matter. Understanding these mechanisms may help us develop better ways to prevent or treat brain infections in ...
Leonor Loira, Sílvia Arroz‐Madeira, Cláudio A. Franco, Sara Silva Pereira   +3 more
wiley   +1 more source