Articles with "dynamic functional" as a keyword



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Dynamic functional hippocampal markers of residual depressive symptoms in euthymic bipolar disorder.

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Published in 2023 at "Brain and behavior"

DOI: 10.1002/brb3.3010

Abstract: OBJECTIVES Bipolar disorder (BD) is a severe, chronic, affective disorder characterized by recurrent switching between mood states, psychomotor and cognitive symptoms, which can linger in euthymic states as residual symptoms. Hippocampal alterations may play a… read more here.

Keywords: residual depressive; dynamic functional; depressive symptoms; bipolar disorder ... See more keywords
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Intrinsic functional connectivity variance and state‐specific under‐connectivity in autism

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Published in 2017 at "Human Brain Mapping"

DOI: 10.1002/hbm.23764

Abstract: Autism spectrum disorder (ASD) is a neurodevelopmental condition associated with altered brain connectivity. Previous neuroimaging research demonstrates inconsistent results, particularly in studies of functional connectivity in ASD. Typically, these inconsistent findings are results of studies… read more here.

Keywords: connectivity; variance; dynamic functional; brain ... See more keywords
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Dynamic functional connectivity states characterize NREM sleep and wakefulness

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Published in 2019 at "Human Brain Mapping"

DOI: 10.1002/hbm.24770

Abstract: According to recent neuroimaging studies, temporal fluctuations in functional connectivity patterns can be clustered into dynamic functional connectivity (DFC) states and correspond to fluctuations in vigilance. However, whether there consistently exist DFC states associated with… read more here.

Keywords: sleep stages; dfc states; dynamic functional; connectivity states ... See more keywords
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Abnormal dynamic functional connectivity after sleep deprivation from temporal variability perspective

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Published in 2022 at "Human Brain Mapping"

DOI: 10.1002/hbm.25886

Abstract: Sleep deprivation (SD) is very common in modern society and regarded as a potential causal mechanism of several clinical disorders. Previous neuroimaging studies have explored the neural mechanisms of SD using magnetic resonance imaging (MRI)… read more here.

Keywords: network; sleep deprivation; dynamic functional; variability ... See more keywords
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Modified models and simulations for estimating dynamic functional connectivity in resting state functional magnetic resonance imaging.

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Published in 2020 at "Statistics in medicine"

DOI: 10.1002/sim.8512

Abstract: As understanding the nature of brain networks through dynamic functional connectivity (dFC) estimation is of paramount significant, the introduction and revision of blood-oxygen-level dependent (BOLD) signal simulation methods in brain regions and dFC estimation methods… read more here.

Keywords: resonance imaging; magnetic resonance; conditional correlation; dynamic functional ... See more keywords
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Investigation of dynamic functional connectivity of the source reconstructed epileptiform discharges in focal epilepsy: A graph theory approach

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Published in 2021 at "Epilepsy Research"

DOI: 10.1016/j.eplepsyres.2021.106745

Abstract: OBJECTIVE The aim of the present study is to investigate with noninvasive methods the modulation of dynamic functional connectivity during interictal epileptiform discharge (IED). METHOD We reconstructed the cortical source of the EEG recorded IED… read more here.

Keywords: epilepsy; source; connectivity; global efficiency ... See more keywords
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The concurrent disturbance of dynamic functional and structural brain connectome in major depressive disorder: the prefronto-insular pathway.

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Published in 2020 at "Journal of affective disorders"

DOI: 10.1016/j.jad.2020.05.148

Abstract: BACKGROUND Robust evidence has shown that abnormal function networks, particularly the salience network (SN), are observed in depressed patients. Although white matter structural connectivity may predict time-varying functional connectivity, including symptom phenotype, in psychiatric disorders,… read more here.

Keywords: functional structural; depressive disorder; connectivity; major depressive ... See more keywords
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An information theory framework for dynamic functional domain connectivity

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Published in 2017 at "Journal of Neuroscience Methods"

DOI: 10.1016/j.jneumeth.2017.04.009

Abstract: BACKGROUND Dynamic functional network connectivity (dFNC) analyzes time evolution of coherent activity in the brain. In this technique dynamic changes are considered for the whole brain. This paper proposes an information theory framework to measure… read more here.

Keywords: information; connectivity; brain; dynamic functional ... See more keywords
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Dimensionality reduction impedes the extraction of dynamic functional connectivity states from fMRI recordings of resting wakefulness

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Published in 2018 at "Journal of Neuroscience Methods"

DOI: 10.1016/j.jneumeth.2017.09.013

Abstract: BACKGROUND Resting wakefulness is not a unitary state, with evidence accumulating that spontaneous reorganization of brain activity can be assayed through functional magnetic resonance imaging (fMRI). The dynamics of correlated fMRI signals among functionally-related brain… read more here.

Keywords: resting wakefulness; dimensionality; dimensionality reduction; dynamic functional ... See more keywords
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Determining the number of states in dynamic functional connectivity using cluster validity indexes

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Published in 2020 at "Journal of Neuroscience Methods"

DOI: 10.1016/j.jneumeth.2020.108651

Abstract: BACKGROUND Clustering analysis is employed in brain dynamic functional connectivity (dFC) to cluster the data into a set of dynamic states. These states correspond to different patterns of functional connectivity that iterate through time. Although… read more here.

Keywords: validity; connectivity; number; dynamic functional ... See more keywords
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Small variation in dynamic functional connectivity in cerebellar networks

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Published in 2021 at "Neurocomputing"

DOI: 10.1016/j.neucom.2020.09.092

Abstract: Brain networks can be defined and explored through their connectivity. Here, we analyzed the relationship between structural connectivity (SC) across 2,514 regions that cover the entire brain and brainstem, and their dynamic functional connectivity (DFC).… read more here.

Keywords: dynamic functional; cerebellar networks; functional connectivity; variability ... See more keywords