نتایج جستجو برای: resting state fmri functional connectivity
تعداد نتایج: 1478880 فیلتر نتایج به سال:
This short survey the reviews recent literature on brain connectivity studies. It encompasses all forms of static and dynamic connectivity whether anatomical, functional, or effective. The last decade has seen an ever increasing number of studies devoted to deduce functional or effective connectivity, mostly from functional neuroimaging experiments. Resting state conditions have become a domina...
Traumatic brain injury (TBI) contributes to about 10% of acquired epilepsy. Even though the mechanisms of post-traumatic epileptogenesis are poorly known, a disruption of neuronal networks predisposing to altered neuronal synchrony remains a viable candidate mechanism. We tested a hypothesis that resting state BOLD-fMRI functional connectivity can reveal network abnormalities in brain regions t...
Previous neuroimaging studies have demonstrated both structural and functional damages in heroin-dependent individuals. However, few studies investigated gray matter deficits and abnormal resting-state networks together in heroin-dependent individuals. In the present study, voxel-based morphometry (VBM) was used to identify brain regions with gray matter density reduction. Resting-state fMRI co...
UNLABELLED Resting-state functional connectivity, as measured by functional magnetic resonance imaging (fMRI), is often treated as a trait, used, for example, to draw inferences about individual differences in cognitive function, or differences between healthy or diseased populations. However, functional connectivity can also depend on the individual's mental state. In the present study, we exa...
The study of hierarchy in networks the human brain has been significant interest among researchers as numerous studies have pointed out towards a functional hierarchical organization brain. This paper provides novel method for extraction connectivity components using resting-state fMRI. builds upon prior work Sparse Connectivity Patterns (SCPs) by introducing sparse overlapping patterns. are es...
Supplemental Materials and Methods Data acquisition Resting state fMRI. Our brain is a complex dynamic system in which information is continuously processed and transferred between brain regions with highly correlated functional dynamics (Sporns et al., 2000; Sporns et al., 2004). These coherent dynamics are believed to reflect the existence of functional connections between these regions. Func...
Introduction Synchronized low-frequency fluctuations in resting-state fMRI (1) have been used to investigate functional connectivity between brain areas. Recent studies demonstrate that this technique can be utilized in the study of Alzheimers disease (2), antidepressant effects (3), and default mode of brain networks (4). So far, most resting-state fMRI studies have been performed on humans...
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