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Relating Structural and Functional Connectivity to Performance in a Communication Task
[chapter]
2010
Lecture Notes in Computer Science
Measures from event-related functional MRI, diffusion tensor imaging tractography and cognitive performance in a language-based task were used to test the hypothesis that both functional and structural ...
connectivity provide independent and complementary information that aids in the identification of network components most related to the neurobiological basis for language and cognitive processing. ...
These are used to examine the relationship between structure and function and their relationship to performance in the functional task. ...
doi:10.1007/978-3-642-15745-5_35
fatcat:6vf35ypcl5aajbrp36pw4y6qze
Pragmatic possibilities of interrogative sentences in a stable form
2022
Zamonaviy lingvistik tadqiqotlar: xorijiy tajribalar, istiqbolli izlanishlar va tillarni o'qitishning innovatsion usullari
And with the study of the pragmatic nature of the sentence, pragmatic syntax, which carries out a functional approach to the analysis of syntactic phenomena, is involved.In other words, the tasks of pragmatic ...
syntax include the study of the Active features of the speech act of subordinate clauses in its focus, as well as the interaction of the pragmatic and structural-semantic properties of the sentence ...
If the purpose of describing sentences in terms of their structure is to illuminate the meaning of their formation' in the definition of communicative-functional approach, the legislations related to the ...
doi:10.47689/linguistic-research-vol-iss1-pp17-19
fatcat:nqlzvb54rjfd5k56un2w7qlcly
Healthy Aging by Staying Selectively Connected: A Mini-Review
2014
Gerontology
The analysis of functional connectivity encompasses task-dependent and -independent synchronous activity in the brain, and thus reflects the organization of the brain in distinct performance-relevant networks ...
Both functional and structural connectivity within these networks have been demonstrated to change with aging, and to have different predictive values for cognitive abilities in older compared to young ...
The research on age-related language network changes and modulation with tDCS described in this review was supported by grants from the Deutsche Forschungsgemeinschaft (Fl 379-8/1, Fl 379-10/1, Fl 379- ...
doi:10.1159/000354376
pmid:24080587
fatcat:6hwdscheyngbvk3rv5oemahr2e
Age-Related Differences in Advantageous Decision Making Are Associated with Distinct Differences in Functional Community Structure
2014
Brain Connectivity
Modularity analysis revealed stark underlying differences in visual, sensorimotor and medial prefrontal cortex community structure. ...
The Iowa Gambling Task (IGT) was the first neuropsychological task used to model real-life decisions in a way that factors reward, punishment, and uncertainty. ...
Neurological Disorders, and Stroke (NS070917) supported this work. ...
doi:10.1089/brain.2013.0184
pmid:24575804
pmcid:PMC3995120
fatcat:anhq3vnt45fonosgg7r2hvag4m
Age differences in functional network reconfiguration with working memory training
2021
Human Brain Mapping
Older adults exhibited lower modularity overall and a greater decrement when switching from rest to task, compared to younger adults. ...
Twenty three younger and 23 older adults participated in 10 days of verbal WM training, leading to performance gains in both age groups. ...
In contrast, training was F I G U R E 4 Differences in community structure as a function of time and load. ...
doi:10.1002/hbm.25337
pmid:33534925
pmcid:PMC7978135
fatcat:gqci6bs3ojgbzhm5j2bmt726x4
A mechanistic model of connector hubs, modularity and cognition
2018
Nature Human Behaviour
We show that a model of hub connectivity accurately predicts the cognitive performance of 476 individuals in four distinct tasks. ...
Moreover, there is a general optimal network structure for cognitive performance--individuals with diversely connected hubs and consequent modular brain networks exhibit increased cognitive performance ...
Each edge represents the strength of functional connectivity between each pair of 264 nodes 49 . In every network, Q and a division of nodes into communities was calculated (see Methods). ...
doi:10.1038/s41562-018-0420-6
fatcat:6upgg4upofba3ajwkf7qbmrf7u
Flexible network community organization during the encoding and retrieval of spatiotemporal episodic memories
2019
Network Neuroscience
Using functional magnetic resonance imaging, we employed a spatiotemporal encoding and retrieval task, detecting functional community structure across the multiple components of our task. ...
These "mover" hubs changed connectivity patterns across spatial and temporal memory encoding and retrieval, engaging in an integrative role within the network. ...
ACKNOWLEDGMENTS We thank Jennifer Lieberman for data collection and Dr. Joy Geng for helpful discussions. ...
doi:10.1162/netn_a_00102
pmid:31637339
pmcid:PMC6777981
fatcat:wzxi5ktnyjbpvilgmxl32ugsji
Method for Collecting Context Information in Mobile Communication Networks
2012
The Smart Computing Review
Monitoring dynamically controls the related function setting according to changesin thecontext information of the mobile handset and station, and each function interacts as each function adjusts to change ...
, QoS control), the related cells, and complex conformityand bystoring information on theproposedmonitoring system context and processing structure. ...
The tasks related to providing cross-sectional QoS are performed at CCN, and they interact with IP QoS, which can be used in the external network connected via a gateway, as well as perform QoS mapping ...
doi:10.6029/smartcr.2012.06.005
fatcat:u6vcboildrdu7dih2leb4fwga4
Non-assortative community structure in resting and task-evoked functional brain networks
[article]
2018
bioRxiv
pre-print
These findings offer a new perspective on the community organization of functional brain networks and its relation to cognition. ...
Other classes that may play key functional roles in brain function have largely been ignored, leading to an impoverished view in the best case and a mischaracterization in the worst case. ...
The two most commonly studied examples of non-assortative communities are (i) core-periphery structures, in which a densely connected core projects to a sparsely connected periphery, and (ii) disassortative ...
doi:10.1101/355016
fatcat:hdgauxvtzjb2zkryb4l67voiuu
Development of structure–function coupling in human brain networks during youth
2019
Proceedings of the National Academy of Sciences of the United States of America
Moreover, structure–function coupling in rostrolateral prefrontal cortex was associated with executive performance and partially mediated age-related improvements in executive function. ...
Together, these findings delineate a critical dimension of adolescent brain development, whereby the coupling between structural and functional connectivity remodels to support functional specialization ...
We used penalized splines within a GAM to estimate linear and nonlinear age-related changes in structure-function coupling for each brain region. ...
doi:10.1073/pnas.1912034117
pmid:31874926
pmcid:PMC6955327
fatcat:vfcqfozowve3to4vyduhaqqu3i
Dynamic reconfiguration of frontal brain networks during executive cognition in humans
2015
Proceedings of the National Academy of Sciences of the United States of America
Here, we use a series of techniques developed in the field of "dynamic network neuroscience" to investigate the dynamics of functional brain networks in 344 healthy subjects during a working-memory challenge ...
The brain is an inherently dynamic system, and executive cognition requires dynamically reconfiguring, highly evolving networks of brain regions that interact in complex and transient communication patterns ...
In the present study, we have provided evidence that the functional connectivity during a working-memory task is dynamically organized into adapting modules and that this adapting modular structure relates ...
doi:10.1073/pnas.1422487112
pmid:26324898
pmcid:PMC4577153
fatcat:fgflxdvpard2bbc75mrroxq4wi
Moderate-Heavy Alcohol Consumption Lifestyle in Older Adults Is Associated with Altered Central Executive Network Community Structure during Cognitive Task
2016
PLoS ONE
The older adults had significantly lower whole brain connectivity (global efficiency) and lower regional connectivity (community structure) in the CEN during task and in the DMN at rest. ...
Taken together, a lifestyle including moderate-heavy alcohol consumption may be associated with further decreases in brain network connectivity within task-related networks in older adults. ...
functional connectivity in the CEN during task performance. ...
doi:10.1371/journal.pone.0160214
pmid:27494180
pmcid:PMC4975417
fatcat:mzna7kcypndenoztkeqxxc7lg4
Reconfiguration of brain network architectures between resting state and complexity-dependent cognitive reasoning
2017
Journal of Neuroscience
It is less clear how such task-driven adaptive changes in connectivity relate to stable, intrinsic networks of the brain and behavioral performance. ...
The reasoning task required participants to deduce the identity of a missing element in a 4 ϫ 4 matrix, and item difficulty was scaled parametrically as determined by relational complexity theory. ...
To do so, we used high-field functional magnetic resonance imaging (fMRI) to measure brain activity at rest and during performance of a behavioral task in which task complexity was manipulated parametrically ...
doi:10.1523/jneurosci.0485-17.2017
pmid:28760864
fatcat:zpzcnbwmyvhovfsjg5ilwswr54
Measuring the Impact of Alternative Parallel Process Architectures on Communication Subsystem Performance
[chapter]
1995
IFIP Advances in Information and Communication Technology
To effectively parallelize a communication subsystem, careful consideration must be given to the process architecture used to structure multiple processing elements. ...
A process architecture binds one or more processing elements with the protocol tasks and messages associated with protocol stacks in a communication subsystem. ...
A key aspect of communication subsystem performance involves the type of process architecture selected to structure parallel processing of protocol tasks. ...
doi:10.1007/978-0-387-34885-8_8
fatcat:qzhzokjierb5xcdjazryc4airu
Cognitive Processing Involves Dynamic Reorganization of the Whole-Brain Network's Functional Community Structure
2016
Journal of Neuroscience
A novelty of this study is that the authors investigated the dynamic reorganization of brain functional networks during performance of the classic n-back working-memory task. ...
To test these hypotheses, Vatansever et al. (2015) investigated the community structure (modularity) of the network. ...
Thus, in contrast to other graph measures, changes in the community structure of the network might be easier to interpret in physiological terms. ...
doi:10.1523/jneurosci.0106-16.2016
pmid:27030750
fatcat:hso3lscdivaclg7oaymjqdtdsq
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