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Functional ultrasound (fUS) detects mild cerebral alterations using canonical correlation analysis denoising and dynamic functional connectivity analysis. [PDF]
Imaging Neurosci (Camb)Faure F +5 more
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Impact of anesthesia on static and dynamic functional connectivity in mice [PDF]
NeuroImage, 2021 Abstract A few studies have compared the static functional connectivity between awake and anaesthetized states in rodents by resting-state fMRI. However, impact of anaesthesia on static and dynamic fluctuations in functional connectivity has not been fully understood. Here, we developed a resting-state fMRI protocol to perform awake and
Tomokazu Tsurugizawa
exaly +4 more sources
Dynamic functional connectivity changes associated with dementia in Parkinson’s disease [PDF]
Brain, 2019 Dynamic functional connectivity captures temporal variations of functional connectivity during MRI acquisition and it may be a suitable method to detect cognitive changes in Parkinson's disease.
Eleonora Fiorenzato +2 more
exaly +2 more sources
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Equilibrium distribution functions: connection with microscopic dynamics
Physical Chemistry Chemical Physics, 2022For a system at equilibrium the phase space density is time invariant. We determine what distribution, if any, is preserved by various dynamics.
Charlotte F. Petersen, Debra J. Searles
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Brain instability in dynamic functional connectivity in schizophrenia
Journal of Neural Transmission, 2022Schizophrenia is a severe psychiatric disorder associated with altered connectivity of brain functional networks (BFNs). Researchers have observed a profound disruption in prefrontal-temporal interactions, damage to hub regions in brain networks and modified topological organization of BFNs in schizophrenia (SCZ) individuals.
Thaise Graziele L. de O. Toutain +3 more
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Dynamic functional connectivity
Current Opinion in Neurobiology, 2007Recent studies show that anatomical and functional brain networks exhibit similar small-world properties. However, the networks that are compared often differ in what the nodes represent (e.g. sensors or brain areas), what kind of connectivity is measured, and what temporal and spatial scales are probed.
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A methodology for dynamic functional connectivity
SPIE Proceedings, 2011Classical measures of functional connectivity assume that the stationarity of the time courses and the time-invariance of functional connectivity under investigation. These assumptions may not be valid in the real cases. Also, they are bivariate measures and may not provide the directional information flow between brain units.
Tianhu Lei +2 more
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"Connectivity and dynamic function in the brain"
Proceedings IEEE International Symposium on Biomedical Imaging, 2003We wish to investigate the complex temporal dynamics of spatially distributed, highly interconnected brain regions, but available methods do not measure all relevant aspects of the system. We must take a convergent multidisciplinary approach, employing multiple methods and defining the relationships between disparate methods.
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