The impact of hemodynamic variability and signal mixing on the identifiability of effective connectivity structures in BOLD fMRI
Sign Up to like & getrecommendations! Published in 2017 at "Brain and Behavior"
DOI: 10.1002/brb3.777
Abstract: Multiple computational studies have demonstrated that essentially all current analytical approaches to determine effective connectivity perform poorly when applied to synthetic functional Magnetic Resonance Imaging (fMRI) datasets. In this study, we take a theoretical approach… read more here.
Keywords: hemodynamic variability; variability signal; effective connectivity; connectivity ... See more keywords
Affective and cooperative social interactions modulate effective connectivity within and between the mirror and mentalizing systems
Sign Up to like & getrecommendations! Published in 2018 at "Human Brain Mapping"
DOI: 10.1002/hbm.23930
Abstract: Decoding the meaning of others’ actions, a crucial step for social cognition, involves different neural mechanisms. While the “mirror” and “mentalizing” systems have been associated with, respectively, the processing of biological actions versus more abstract… read more here.
Keywords: mirror mentalizing; social interactions; effective connectivity; mentalizing systems ... See more keywords
Maturation changes the excitability and effective connectivity of the frontal lobe: A developmental TMS–EEG study
Sign Up to like & getrecommendations! Published in 2019 at "Human Brain Mapping"
DOI: 10.1002/hbm.24525
Abstract: The combination of transcranial magnetic stimulation with simultaneous electroencephalography (TMS–EEG) offers direct neurophysiological insight into excitability and connectivity within neural circuits. However, there have been few developmental TMS–EEG studies to date, and they all have… read more here.
Keywords: tms; effective connectivity; tms eeg; cortex ... See more keywords
Graph theoretical analysis of evoked potentials shows network influence of epileptogenic mesial temporal region
Sign Up to like & getrecommendations! Published in 2021 at "Human Brain Mapping"
DOI: 10.1002/hbm.25418
Abstract: It is now widely accepted that seizures arise from the coordinated activity of epileptic networks, and as a result, traditional methods of analyzing seizures have been augmented by techniques like single‐pulse electrical stimulation (SPES) that… read more here.
Keywords: mesial temporal; network; effective connectivity; epileptogenic mtr ... See more keywords
Dynamic effective connectivity among large‐scale brain networks mediates risk of anxiety
Sign Up to like & getrecommendations! Published in 2023 at "Human Brain Mapping"
DOI: 10.1002/hbm.26308
Abstract: Anxiety is characterized by altered brain networks. Directional information flows among dynamic brain networks concerning neuropathogenesis of anxiety have not yet been investigated. The role of directional influences between networks in gene–environment effects on anxiety… read more here.
Keywords: connectivity; brain networks; effective connectivity; anxiety ... See more keywords
GABA content within medial prefrontal cortex predicts the variability of fronto-limbic effective connectivity
Sign Up to like & getrecommendations! Published in 2017 at "Brain Structure and Function"
DOI: 10.1007/s00429-017-1399-x
Abstract: The amygdala-medial prefrontal cortex (mPFC) circuit plays a key role in social behavior. The amygdala and mPFC are bidirectionally connected, functionally and anatomically, via the uncinate fasciculus. Recent evidence suggests that GABA-ergic neurotransmission within the… read more here.
Keywords: amygdala mpfc; mpfc; effective connectivity; medial prefrontal ... See more keywords
Alterations in effective connectivity within the Papez circuit are correlated with insulin resistance in T2DM patients without mild cognitive impairment
Sign Up to like & getrecommendations! Published in 2019 at "Brain Imaging and Behavior"
DOI: 10.1007/s11682-019-00049-z
Abstract: Insulin resistance (IR) can significantly affect the hippocampus, a component of a larger memory circuit called the Papez circuit. This study was performed to identify altered effective connectivity within the Papez circuit in type 2… read more here.
Keywords: effective connectivity; papez circuit; t2dm patients; patients without ... See more keywords
Global structural integrity and effective connectivity in patients with disorders of consciousness
Sign Up to like & getrecommendations! Published in 2018 at "Brain Stimulation"
DOI: 10.1016/j.brs.2017.11.006
Abstract: BACKGROUND Previous studies have separately reported impaired functional, structural, and effective connectivity in patients with disorders of consciousness (DOC). The perturbational complexity index (PCI) is a transcranial magnetic stimulation (TMS) derived marker of effective connectivity.… read more here.
Keywords: patients disorders; connectivity patients; effective connectivity; connectivity ... See more keywords
Effective connectivity analysis of iEEG and accurate localization of the epileptogenic focus at the onset of operculo-insular seizures
Sign Up to like & getrecommendations! Published in 2019 at "Epilepsy Research"
DOI: 10.1016/j.eplepsyres.2019.02.006
Abstract: Recognition of insular epilepsy may sometimes be challenging due to the rapid speed at which insular seizures can spread throughout the cortex via extensive connections to surrounding cortices. The spectrum weighted adaptive directed transfer function,… read more here.
Keywords: operculo insular; insular seizures; effective connectivity; connectivity analysis ... See more keywords
A guide to group effective connectivity analysis, part 1: First level analysis with DCM for fMRI
Sign Up to like & getrecommendations! Published in 2019 at "Neuroimage"
DOI: 10.1016/j.neuroimage.2019.06.031
Abstract: Dynamic Causal Modelling (DCM) is the predominant method for inferring effective connectivity from neuroimaging data. In the 15 years since its introduction, the neural models and statistical routines in DCM have developed in parallel, driven… read more here.
Keywords: dcm; fmri; effective connectivity; analysis ... See more keywords
Effective connectivity modulations related to win and loss outcomes
Sign Up to like & getrecommendations! Published in 2020 at "NeuroImage"
DOI: 10.1016/j.neuroimage.2019.116369
Abstract: Previous studies have characterized the brain regions involved in encoding monetary reward and punishment outcomes. The question of how this information is integrated across brain regions has received less attention. Here, we investigated changes in… read more here.
Keywords: win loss; network; effective connectivity; connectivity ... See more keywords