Results 71 to 80 of about 10,073,117 (279)

Caffeine-Induced Global Reductions in Resting-State BOLD Connectivity Reflect Widespread Decreases in MEG Connectivity. [PDF]

open access: yes, 2013
In resting-state functional magnetic resonance imaging (fMRI), the temporal correlation between spontaneous fluctuations of the blood oxygenation level dependent (BOLD) signal from different brain regions is used to assess functional connectivity ...
Diwakar, Mithun   +6 more
core   +1 more source

Function‐driven design of a surrogate interleukin‐2 receptor ligand

open access: yesFEBS Letters, EarlyView.
Interleukin (IL)‐2 signaling can be achieved and precisely fine‐tuned through the affinity, distance, and orientation of the heterodimeric receptors with their ligands. We designed a biased IL‐2 surrogate ligand that selectively promotes effector T and natural killer cell activation and differentiation. Interleukin (IL) receptors play a pivotal role in
Ziwei Tang   +9 more
wiley   +1 more source

Alterations in resting-state activity relate to performance in a verbal recognition task. [PDF]

open access: yesPLoS ONE, 2013
In the brain, resting-state activity refers to non-random patterns of intrinsic activity occurring when participants are not actively engaged in a task.
Rocío A López Zunini   +4 more
doaj   +1 more source

Latent functional connectivity underlying multiple brain states

open access: yesNetwork Neuroscience, 2022
Functional connectivity (FC) studies have predominantly focused on resting state, where ongoing dynamics are thought to reflect the brain’s intrinsic network architecture; thought to be broadly relevant because it persists across brain states (i.e ...
Ethan M. McCormick   +4 more
doaj   +1 more source

Frequency‐dependent functional connectivity in resting state networks

open access: yesHuman Brain Mapping, 2020
Functional magnetic resonance imaging studies have documented the resting human brain to be functionally organized in multiple large‐scale networks, called resting‐state networks (RSNs). Other brain imaging techniques, such as electroencephalography (EEG)
Jessica Samogin   +6 more
semanticscholar   +1 more source

A simple and objective method for reproducible resting state network (RSN) detection in fMRI [PDF]

open access: yes, 2011
Spatial Independent Component Analysis (ICA) decomposes the time by space functional MRI (fMRI) matrix into a set of 1-D basis time courses and their associated 3-D spatial maps that are optimized for mutual independence.
David Borsook   +3 more
core   +4 more sources

Mechanisms of parasite‐mediated disruption of brain vessels

open access: yesFEBS Letters, EarlyView.
Parasites can affect the blood vessels of the brain, often causing serious neurological problems. This review explains how different parasites interact with and disrupt these vessels, what this means for brain health, and why these processes matter. Understanding these mechanisms may help us develop better ways to prevent or treat brain infections in ...
Leonor Loira   +3 more
wiley   +1 more source

The Functional Interactions between Cortical Regions through Theta-Gamma Coupling during Resting-State and a Visual Working Memory Task

open access: yesBrain Sciences, 2022
Theta phase-gamma amplitude coupling (TGC) plays an important role in several different cognitive processes. Although spontaneous brain activity at the resting state is crucial in preparing for cognitive performance, the functional role of resting-state ...
Ji Seon Ahn   +6 more
doaj   +1 more source

The Effect of Aging on Resting State Connectivity of Predefined Networks in the Brain

open access: yesFrontiers in Aging Neuroscience, 2019
Recent studies have found a deleterious effect of age on a wide variety of measures of functional connectivity, and some hints at a relationship between connectivity at rest and cognitive functioning.
Eleanna Varangis   +3 more
semanticscholar   +1 more source

A pairwise maximum entropy model accurately describes resting-state human brain networks [PDF]

open access: yes, 2013
The resting-state human brain networks underlie fundamental cognitive functions and consist of complex interactions among brain regions. However, the level of complexity of the resting-state networks has not been quantified, which has prevented ...
Hirose, S   +8 more
core   +1 more source

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