نتایج جستجو برای: default mode network dmn

تعداد نتایج: 892432  

Journal: :The Journal of neuroscience : the official journal of the Society for Neuroscience 2011
Valerie Bonnelle Robert Leech Kirsi M Kinnunen Tim E Ham Cristian F Beckmann Xavier De Boissezon Richard J Greenwood David J Sharp

Traumatic brain injury (TBI) frequently produces impairments of attention in humans. These can result in a failure to maintain consistent goal-directed behavior. A predominantly right-lateralized frontoparietal network is often engaged during attentionally demanding tasks. However, lapses of attention have also been associated with increases in activation within the default mode network (DMN). ...

2014
Patricia Bado Annerose Engel Ricardo de Oliveira-Souza Ivanei E Bramati Fernando F Paiva Rodrigo Basilio João R Sato Fernanda Tovar-Moll Jorge Moll

Humans spend a substantial share of their lives mind-wandering. This spontaneous thinking activity usually comprises autobiographical recall, emotional, and self-referential components. While neuroimaging studies have demonstrated that a specific brain "default mode network" (DMN) is consistently engaged by the "resting state" of the mind, the relative contribution of key cognitive components t...

Journal: :Schizophrenia Research 2012
Mariët van Buuren Matthijs Vink René S. Kahn

The default-mode network (DMN) of the brain shows highly coherent intrinsic activity in healthy subjects and is implicated in self-referential processing important for social cognitive functioning. Schizophrenia patients show abnormal resting-state connectivity within the DMN and this aberrant connectivity is thought to contribute to difficulties in self-referential and introspective processing...

Journal: :Scientific reports 2016
Ting-Hsuan Wu Cheng-Hao Tu Hsiang-Tai Chao Wei-Chi Li Intan Low Chih-Ying Chuang Tzu-Chen Yeh Chou-Ming Cheng Chih-Che Chou Li-Fen Chen Jen-Chuen Hsieh

Primary dysmenorrhea (PDM) is the most prevalent gynecological problem. Many key brain systems are engaged in pain processing. In light of dynamic communication within and between systems (or networks) in shaping pain experience and behavior, the intra-regional functional connectivity (FC) in the hub regions of the systems may be altered and the functional interactions in terms of inter-regiona...

Journal: :Cerebral cortex 2016
Angela E Abbott Aarti Nair Christopher L Keown Michael Datko Afrooz Jahedi Inna Fishman Ralph-Axel Müller

Autism spectrum disorder (ASD) is characterized by atypical brain network organization, but findings have been inconsistent. While methodological and maturational factors have been considered, the network specificity of connectivity abnormalities remains incompletely understood. We investigated intrinsic functional connectivity (iFC) for four "core" functional networks-default-mode (DMN), salie...

2012
Felicity Callard Jonathan Smallwood Daniel S. Margulies

The puzzle of the brain and mind at rest - their so-called default state - is strongly influenced by the historical precedents that led to its emergence as a scientific question. What eventually became the default-mode network (DMN) was inaugurated via meta-analysis to explain the observation that the baseline "at rest" condition was concealing a pattern of neural activations in anterior and po...

2016
Kihwan Han Sandra B Chapman Daniel C Krawczyk

OBJECTIVES Individuals with chronic traumatic brain injury (TBI) often show detrimental deficits in higher order cognitive functions requiring coordination of multiple brain networks. Although assessing TBI-related deficits in higher order cognition in the context of network dysfunction is promising, few studies have systematically investigated altered interactions among multiple networks in ch...

2017
Thomas Alderson Elizabeth Kehoe Liam Maguire Dervla Farrell Brian Lawlor Rose A. Kenny Declan Lyons Arun L. W. Bokde Damien Coyle

Alzheimer's disease (AD) and its prodromal state amnestic mild cognitive impairment (aMCI) are characterized by widespread abnormalities in inter-areal white matter fiber pathways and parallel disruption of default mode network (DMN) resting state functional and effective connectivity. In healthy subjects, DMN and task positive network interaction are modulated by the thalamus suggesting that a...

2010
Christopher Benjamin Daniel A. Lieberman Maria Chang Noa Ofen Sue Whitfield-Gabrieli John D. E. Gabrieli Nadine Gaab

The default mode network (DMN) refers to regional brain activity that is greater during rest periods than during attention-demanding tasks; many studies have reported DMN alterations in patient populations. It has also been shown that the DMN is suppressed by scanner background noise (SBN), which is the noise produced by functional magnetic resonance imaging (fMRI). However, it is unclear wheth...

2015
Fikret Işik Karahanoğlu Dimitri Van De Ville

Dynamics of resting-state functional magnetic resonance imaging (fMRI) provide a new window onto the organizational principles of brain function. Using state-of-the-art signal processing techniques, we extract innovation-driven co-activation patterns (iCAPs) from resting-state fMRI. The iCAPs' maps are spatially overlapping and their sustained-activity signals temporally overlapping. Decomposin...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید