Results 1 to 10 of about 6,293,610 (293)

Asymmetric high-order anatomical brain connectivity sculpts effective connectivity [PDF]

open access: yesNetwork Neuroscience, 2020
Bridging the gap between symmetric, direct white matter brain connectivity and neural dynamics that are often asymmetric and polysynaptic may offer insights into brain architecture, but this remains an unresolved challenge in neuroscience.
Arseny A. Sokolov   +6 more
doaj   +5 more sources

State-Dependent Effective Connectivity in Resting-State fMRI [PDF]

open access: yesFrontiers in Neural Circuits, 2021
The human brain at rest exhibits intrinsic dynamics transitioning among the multiple metastable states of the inter-regional functional connectivity. Accordingly, the demand for exploring the state-specific functional connectivity increases for a deeper ...
Hae-Jeong Park   +18 more
doaj   +2 more sources

Multivariate autoregressive model estimation for high-dimensional intracranial electrophysiological data

open access: yesNeuroImage, 2022
Fundamental to elucidating the functional organization of the brain is the assessment of causal interactions between different brain regions. Multivariate autoregressive (MVAR) modeling techniques applied to multisite electrophysiological recordings are ...
Christopher M. Endemann   +4 more
doaj   +1 more source

Developmental Differences of Structural Connectivity and Effective Connectivity in Semantic Judgments of Chinese Characters

open access: yesFrontiers in Human Neuroscience, 2020
Previous studies have investigated the developmental differences of semantic processing regarding brain activation between adults and children. However, little is known about whether the patterns of structural connectivity and effective connectivity ...
Li-Ying Fan   +13 more
doaj   +1 more source

Brain effective connectivity and functional connectivity as markers of lifespan vascular exposures in middle-aged adults: The Bogalusa Heart Study

open access: yesFrontiers in Aging Neuroscience, 2023
IntroductionEffective connectivity (EC), the causal influence that functional activity in a source brain location exerts over functional activity in a target brain location, has the potential to provide different information about brain network dynamics ...
Kai-Cheng Chuang   +10 more
doaj   +1 more source

A Novel Approach for Segment-Length Selection Based on Stationarity to Perform Effective Connectivity Analysis Applied to Resting-State EEG Signals

open access: yesSensors, 2022
Connectivity among different areas within the brain is a topic that has been notably studied in the last decade. In particular, EEG-derived measures of effective connectivity examine the directionalities and the exerted influences raised from the ...
Leonardo Góngora   +4 more
doaj   +1 more source

Classification of Schizophrenia by Combination of Brain Effective and Functional Connectivity

open access: yesFrontiers in Neuroscience, 2021
At present, lots of studies have tried to apply machine learning to different electroencephalography (EEG) measures for diagnosing schizophrenia (SZ) patients. However, most EEG measures previously used are either a univariate measure or a single type of
Zongya Zhao   +25 more
doaj   +1 more source

Dynamic Causal Modeling Self-Connectivity Findings in the Functional Magnetic Resonance Imaging Neuropsychiatric Literature

open access: yesFrontiers in Neuroscience, 2021
Dynamic causal modeling (DCM) is a method for analyzing functional magnetic resonance imaging (fMRI) and other functional neuroimaging data that provides information about directionality of connectivity between brain regions.
Andrew D. Snyder   +11 more
doaj   +1 more source

Establishment of Effective Biomarkers for Depression Diagnosis With Fusion of Multiple Resting-State Connectivity Measures

open access: yesFrontiers in Neuroscience, 2021
Major depressive disorder (MDD) is a severe mental disorder and is lacking in biomarkers for clinical diagnosis. Previous studies have demonstrated that functional abnormalities of the unifying triple networks are the underlying basis of the ...
Yanling Li   +5 more
doaj   +1 more source

Sparse Estimation of Resting-State Effective Connectivity From fMRI Cross-Spectra

open access: yesFrontiers in Neuroscience, 2018
In functional magnetic resonance imaging (fMRI), functional connectivity is conventionally characterized by correlations between fMRI time series, which are intrinsically undirected measures of connectivity. Yet, some information about the directionality
Carolin Lennartz   +9 more
doaj   +1 more source

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