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Frequency specificity of functional connectivity in brain networks

Changwei W. Wu, Hong Gu, Hanbing Lu, Elliot A. Stein, Jyh-Horng Chen, Yihong Yang
2008 NeuroImage  
Hz), suggesting distinct frequency-specific features in the resting-state fMRI signal within these functional networks.  ...  Synchronized low-frequency spontaneous fluctuations of the functional MRI (fMRI) signal have been shown to be associated with electroencephalography (EEG) power fluctuations in multiple brain networks  ...  Acknowledgements This work was supported by the Intramural Research Program of the National Institute on Drug Abuse (NIDA), National Institute of Health (NIH).  ... 
doi:10.1016/j.neuroimage.2008.05.035 pmid:18632288 pmcid:PMC2612530 fatcat:b5yfhgmkuvbvplxrwlmrtt6n4i

Plasticity of brain wave network interactions and evolution across physiologic states

Kang K. L. Liu, Ronny P. Bartsch, Aijing Lin, Rosario N. Mantegna, Plamen Ch. Ivanov
2015 Frontiers in Neural Circuits  
Comparing frequency-specific networks within the same physiologic state we find very different degree of network connectivity and link strength, while at the same time each frequency-specific network is  ...  Moreover, our analyses indicate that plasticity also emerges in frequency-specific networks, which represent interactions across brain locations mediated through a specific frequency band.  ...  the ensemble of inter-channel links connecting a specific frequency band at different brain locations (network nodes).  ... 
doi:10.3389/fncir.2015.00062 pmid:26578891 pmcid:PMC4620446 fatcat:csemlduuq5gwlcaeaay6fwbwke

Frequency Specific Effects of ApoE ε4 Allele on Resting-State Networks in Nondemented Elders

Ying Liang, Zhenzhen Li, Jing Wei, Chunlin Li, Xu Zhang, Alzheimer's Disease Neuroimaging Initiative
2017 BioMed Research International  
Considering the frequency specific effects of functional connectivity, we decomposed the brain network time courses into two bands: 0.01–0.027 Hz and 0.027–0.08 Hz.  ...  We explored the frequency specific effects of ApoE ε4 allele on the default mode network (DMN) and the salience network (SN) functional connectivity.  ...  As such, the investigators within the ADNI contributed to the design and implementation of ADNI and/or provided data but did not participate in analysis or writing of this report.  ... 
doi:10.1155/2017/9823501 pmid:28396874 pmcid:PMC5370516 fatcat:examuyqzwzc2zb2hsd755uvotm

Selective impairment of hippocampus and posterior hub areas in Alzheimer's disease: an MEG-based multiplex network study

Meichen Yu, Marjolein M. A. Engels, Arjan Hillebrand, Elisabeth C. W. van Straaten, Alida A. Gouw, Charlotte Teunissen, Wiesje M. van der Flier, Philip Scheltens, Cornelis J. Stam
2017 Brain  
Background: Although frequency-specific network analyses have shown that functional brain networks are altered in patients with Alzheimer's disease (AD), the relationships between these frequency-specific  ...  between frequency-specific networks in AD.  ... 
doi:10.1093/brain/awx050 pmid:28334883 fatcat:gnvc2rhtcvgejipbs2vwyrf7ci

Adaptive reconfiguration of fractal small-world human brain functional networks

D. S. Bassett, A. Meyer-Lindenberg, S. Achard, T. Duke, E. Bullmore
2006 Proceedings of the National Academy of Sciences of the United States of America  
The highest-frequencynetwork had greater synchronizability, greater clustering of connections, and shorter path length than networks in the scaling regime of (lower) frequencies.  ...  Brain function depends on adaptive self-organization of largescale neural assemblies, but little is known about quantitative network parameters governing these processes in humans.  ...  The authors declare no conflict of interest.  ... 
doi:10.1073/pnas.0606005103 pmid:17159150 pmcid:PMC1838565 fatcat:hmyozzvxj5a7damcekqtrylzbq

Frequency-specific Alterations of Functional Hub in Generalized Tonic-clonic Seizure

Zhe Zhang, Huiyan Cheng, Xuhui Chen, Chaolin Ma
2016 International Journal of Networked and Distributed Computing (IJNDC)  
These findings highlight the role of frequency-specific functional hub, and may helpfully uncover abnormal neuronal activity in patients with GTCS at frequency-specific bands.  ...  Then, we compared alterations of frequency-specific functional hub across five different frequency bands in 21 GTCS patients to 22 normal control (NC) subjects.  ...  Frequency-specific alternating of functional connectivity networks between-group.  ... 
doi:10.2991/ijndc.2016.4.4.3 fatcat:srcepgc77zftfhhfsrnbofxtda

Frequency-specific network topologies in the resting human brain

Shuntaro Sasai, Fumitaka Homae, Hama Watanabe, Akihiro T. Sasaki, Hiroki C. Tanabe, Norihiro Sadato, Gentaro Taga
2014 Frontiers in Human Neuroscience  
It has been shown that both "communities" and "hubs" exist simultaneously in the brain's functional connectivity network (FCN), as estimated by correlations among low-frequency spontaneous fluctuations  ...  Here, we demonstrate that frequency-specific network topologies that characterize segregation and integration also exist within this frequency range.  ...  This work was partly supported by Grants-in-Aid for the Japan Society for  ... 
doi:10.3389/fnhum.2014.01022 pmid:25566037 pmcid:PMC4273625 fatcat:uvbgnoqpufcczohw4nym4vso7e

Frequency-specific alterations of functional hub in generalized tonic-clonic seizure

Zhe Zhang, Hui-Yan Cheng, Xu-Hui Chen, Chao-Lin Ma
2016 2016 IEEE/ACIS 15th International Conference on Computer and Information Science (ICIS)  
These findings highlight the role of frequency-specific functional hub, and may helpfully uncover abnormal neuronal activity in patients with GTCS at frequency-specific bands.  ...  Then, we compared alterations of frequency-specific functional hub across five different frequency bands in 21 GTCS patients to 22 normal control (NC) subjects.  ...  Frequency-specific alternating of functional connectivity networks between-group.  ... 
doi:10.1109/icis.2016.7550940 dblp:conf/ACISicis/ZhangCCM16 fatcat:3adlj5hr4fbxnludm3cmpo6fou

Developmental Changes in Backbone of Brain Functional Network During the Infancy Period

Paria Samimi Sabet, Farshid Javadi, Hamidreza Pouretemad, Reza Khosrowabadi
2019 NeuroQuantology  
Our findings indicate that backbone of the brain functional network changes in a frequency specific manner, and a reverse order follows the changes in oscillatory pattern.  ...  In this study developmental changes in the backbone of functional brain network are investigated.  ...  Fathi for their invaluable assistance in the clinical visits and data collection in this study.  ... 
doi:10.14704/nq.2019.17.6.2387 fatcat:iwqwoyqkwfd6raeoonqxq47ldu

Transcranial Direct Current Stimulation Modulates Brain Functional Connectivity in Autism

Tianyi Zhou, Jiannan Kang, Zheng Li, He Chen, Xiaoli Li
2020 NeuroImage: Clinical  
We found 1) an increase in network flexibility following tDCS (rapid network configuration of dynamic network communities), 2) specific increase in interhemispheric connectivity within the alpha frequency  ...  Meanwhile, frequency-specific subnetworks, as a way to index local and global information processing, highlight the core modulatory effects of tDCS on the modular architecture of the functional connectivity  ...  This research was supported by grants from the National Natural Science Foundation of China (grants 61827811 and 61761166003) and the National Key R&D Program of China (grant 2016YFC1306203).  ... 
doi:10.1016/j.nicl.2020.102500 pmid:33395990 pmcid:PMC7695891 fatcat:n2tzw3lbznh6zh75ktcplwyhoy

Decoding the circuitry of consciousness: From local microcircuits to brain-scale networks

Julien Modolo, Mahmoud Hassan, Fabrice Wendling, Pascal Benquet
2019 Network Neuroscience  
Second, we discuss the role of three main types of GABAergic interneurons in specific circuits responsible for the dynamical reorganization of functional networks.  ...  One major challenge is to understand how cortical circuits at drastically different spatial scales, from local networks to brain-scale networks, operate in concert to enable consciousness, and how those  ...  Such transient networks involving only a few brain regions, coordinated to achieve a specific function limited in duration, form what is termed functional connectivity.  ... 
doi:10.1162/netn_a_00119 pmid:32537530 pmcid:PMC7286300 fatcat:fphpwijvdjfk5awatf3eo43sry

Frequency-specific Alterations of Large-scale Functional Brain Networks in Patients with Alzheimer′s Disease

Wen-Zhen Zhu, Yuan-Yuan Qin, Ya-Peng Li, Shun Zhang, Ying Xiong, Lin-Ying Guo, Shi-Qi Yang, Yi-Hao Yao, Wei Li
2015 Chinese Medical Journal  
Conclusions: This study demonstrates that the topological alterations of large-scale functional brain networks in AD patients are frequency dependent, thus providing fundamental support for optimal frequency  ...  Previous studies have indicated that the cognitive deficits in patients with Alzheimer's disease (AD) may be due to topological deteriorations of the brain network.  ...  Recent studies have reported the frequency specificity of functional connectivity in multiple functional networks derived from resting-state functional magnetic resonance imaging (RS-fMRI) signals, as  ... 
doi:10.4103/0366-6999.151654 pmid:25698190 pmcid:PMC4834769 fatcat:sx4qt3tujzgxxah3sx76ughqqe

Coherence a measure of the brain networks: past and present

Susan M. Bowyer
2016 Neuropsychiatric Electrophysiology  
Brian connectivity describes the networks of functional and anatomical connections across the brain.  ...  Detection of the synchronous activation of neurons can be used to determine the wellbeing or integrity of the functional connectivity in the human brain networks.  ...  Functional connectivity does not determine the specific direction of information flow in the brain.  ... 
doi:10.1186/s40810-015-0015-7 fatcat:3v6gsvdex5e4rmjjor5362xdli

Functional Integration Between Brain Regions at Rest Occurs in Multiple-Frequency Bands

Suril R. Gohel, Bharat B. Biswal
2015 Brain Connectivity  
In this study, we used resting-state fMRI data acquired from 21 healthy subjects at a higher sampling frequency of 1.5 Hz to assess the presence of resting-state functional connectivity (RSFC) across multiple  ...  The effect of different frequency bands on spatial extent and connectivity strength for known resting-state networks (RSNs) was also evaluated.  ...  Paul Taylor for their help in preparing this article. The following research was supported through NIH grant RO1 5R01AG032088 awarded to B.B.B.  ... 
doi:10.1089/brain.2013.0210 pmid:24702246 pmcid:PMC4313418 fatcat:xh36v2jsgrgazbaiuwuoahipzm

Functional Integration and Segregation in Multiplex Brain Networks for Alzheimer's Disease

Lihui Cai, Xile Wei, Jing Liu, Lin Zhu, Jiang Wang, Bin Deng, Haitao Yu, Ruofan Wang
2020 Frontiers in Neuroscience  
Growing evidence links impairment of brain functions in Alzheimer's disease (AD) with disruptions of brain functional connectivity.  ...  This may shed new light on the brain network analysis and extend our understanding of brain function in patients with neurological diseases.  ...  These studies confirmed that the functional networks provide frequency-specific information about the brain function disruptions in AD.  ... 
doi:10.3389/fnins.2020.00051 pmid:32132892 pmcid:PMC7040198 fatcat:lxuijj6fgba33flnnhmds7zn64
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