Results 41 to 50 of about 363,149 (303)

Default mode network scaffolds immature frontoparietal network in cognitive development

open access: yesCerebral Cortex, 2022
The default mode network (DMN) is a workspace for convergence of internal and external information. The frontal parietal network (FPN) is indispensable to executive functioning.
Menglu Chen   +18 more
semanticscholar   +1 more source

Involvement of the default mode network under varying levels of cognitive effort

open access: yesScientific Reports, 2022
Everyday cognitive functioning is characterized by constant alternations between different modes of information processing, driven by constant fluctuations in environmental demands.
S. Weber, A. Aleman, K. Hugdahl
semanticscholar   +1 more source

The Default Mode Network and the Problem of Determining Intrinsic Mental Contents

open access: yesStudies in Logic, Grammar and Rhetoric, 2015
We provide a brief overview of the shift toward the intrinsic view of brain activity, describing in particular the structural and functional connectivity patterns of the “Default mode network” (part I).
Havlík Marek, Marvan Tomáš
doaj   +1 more source

The default mode network and cognition in Parkinson's disease: A multimodal resting‐state network approach

open access: yesHuman Brain Mapping, 2021
Involvement of the default mode network (DMN) in cognitive symptoms of Parkinson's disease (PD) has been reported by resting‐state functional MRI (rsfMRI) studies.
Marina C. Ruppert   +10 more
semanticscholar   +1 more source

Rumination and the default mode network: Meta-analysis of brain imaging studies and implications for depression

open access: yesNeuroImage, 2020
Rumination is strongly and consistently correlated with depression. Although multiple studies have explored the neural correlates of rumination, findings have been inconsistent and the mechanisms underlying rumination remain elusive.
Hui Zhou   +7 more
semanticscholar   +1 more source

Mapping the subcortical connectivity of the human default mode network

open access: yesbioRxiv, 2021
The default mode network (DMN) mediates self-awareness and introspection, core components of human consciousness. Therapies to restore consciousness in patients with severe brain injuries have historically targeted subcortical sites in the brainstem ...
Jian Li   +7 more
semanticscholar   +1 more source

Transcranial stimulation of alpha oscillations up-regulates the default mode network

open access: yesProceedings of the National Academy of Sciences of the United States of America, 2021
Significance In the brain’s functional organization, the default mode network (DMN) represents a key architecture, whose dysregulation is involved in a host of major neuropsychiatric disorders.
K. Clancy   +5 more
semanticscholar   +1 more source

Dysmaturation of the default mode network in autism

open access: yesHuman Brain Mapping, 2013
Two hypotheses of autism spectrum disorder (ASD) propose that this condition is characterized by deficits in Theory of Mind and by hypoconnectivity between remote cortical regions with hyperconnectivity locally. The default mode network (DMN) is a set of remote, functionally connected cortical nodes less active during executive tasks than at rest and ...
Stuart D, Washington   +12 more
openaire   +3 more sources

Dissociations between glucose metabolism and blood oxygenation in the human default mode network revealed by simultaneous PET-fMRI

open access: yesProceedings of the National Academy of Sciences of the United States of America, 2021
Significance A consistent finding from functional MRI (fMRI) of externally focused cognitive control is negative signal change in the brain’s default mode network (DMN), but it is unknown whether this reflects an increase of synaptic activity during rest
L. Stiernman   +8 more
semanticscholar   +1 more source

Age differences in default mode activity on easy and difficult spatial judgment tasks

open access: yesFrontiers in Human Neuroscience, 2010
The default network is a system of brain areas that are engaged when the mind is not involved in goal-directed activity. Most previous studies of age-related changes in default mode processing have used verbal tasks.
Denise C Park   +3 more
doaj   +1 more source

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