Filters








768 Hits in 5.2 sec

Cortical subnetwork dynamics during human language tasks

Maxwell J. Collard, Matthew S. Fifer, Heather L. Benz, David P. McMullen, Yujing Wang, Griffin W. Milsap, Anna Korzeniewska, Nathan E. Crone
2016 NeuroImage  
Language tasks require the coordinated activation of multiple subnetworks-groups of related cortical interactions involved in specific components of task processing.  ...  human cognitive tasks.  ...  subnetworks, and may provide important insights into the dynamics of large-scale cortical networks during cognitive tasks.  ... 
doi:10.1016/j.neuroimage.2016.03.072 pmid:27046113 pmcid:PMC4985237 fatcat:grryxkzjyndptkaiu7m5qyk6ie

What Direct Electrostimulation of the Brain Taught Us About the Human Connectome: A Three-Level Model of Neural Disruption

Hugues Duffau
2020 Frontiers in Human Neuroscience  
Second, in light of this model, original findings gained from DES concerning the human connectome, complementary to those provided by functional neuroimaging (FNI), are reviewed.  ...  Thus, it was evidenced that DES offers the unique opportunity to identify both cortical and subcortical structures critical for cerebral functions.  ...  For example, concerning the language system, stimulating specifically the dorsal stream mediated by the arcuate fasciculus during a naming task elicits phonological paraphasia; stimulating specifically  ... 
doi:10.3389/fnhum.2020.00315 pmid:32848678 pmcid:PMC7427088 fatcat:2kpmw6ub75btbo5xk6bk5zmlsa

History of awake mapping and speech and language localization: from modules to networks

Shervin Rahimpour, Michael M. Haglund, Allan H. Friedman, Hugues Duffau
2019 Neurosurgical Focus  
language cortical organization.  ...  The classic Broca-Wernicke model of cortical speech and language organization underwent a paradigm shift in large part due to advances in brain mapping techniques.  ...  Wernicke-Geschwind model, language production requires dynamic interactions between parallel delocalized subnetwork whose recruitment varies based on the task required.  ... 
doi:10.3171/2019.7.focus19347 pmid:31473677 fatcat:wr6pzxod7nh7zcaycl3xyrekru

Probabilistic mapping of language networks from high frequency activity induced by direct electrical stimulation

Marcela Perrone‐Bertolotti, Sarah Alexandre, Anne‐Sophie Jobb, Luca De Palma, Monica Baciu, Marie‐Pierre Mairesse, Dominique Hoffmann, Lorella Minotti, Philippe Kahane, Olivier David
2020 Human Brain Mapping  
task following 50 Hz DES.  ...  In addition, specific subnetworks could be identified within the global language network, related to different language processes, generally described in relation to the classical language regions.  ...  For each patient, we identified the language errors induced by the DES during a picture-naming task and reported the corresponding stimulation cortical sites.  ... 
doi:10.1002/hbm.25112 pmid:32697353 pmcid:PMC7469846 fatcat:pdczro5ss5ef5hmphm6oey3p3u

Graph Independent Component Analysis Reveals Repertoires of Intrinsic Network Components in the Human Brain

Bumhee Park, Dae-Shik Kim, Hae-Jeong Park, Dante R. Chialvo
2014 PLoS ONE  
Using the derived subnetwork repertories, we decomposed brain networks during specific tasks including motor activity, working memory exercises, and verb generation, and identified subnetworks associated  ...  Recent data suggest that pre-existing repertoires of a much smaller number of canonical network components are selectively and dynamically used to compute new cognitive tasks.  ...  Task-specific subnetworks and sex-specific subnetworks The differential involvement of each subnetwork was evaluated during motor and cognitive tasks (n-back and verb-generation tasks) by linearly projecting  ... 
doi:10.1371/journal.pone.0082873 pmid:24409279 pmcid:PMC3883640 fatcat:oyot4njmmzgprew77lqhmwujuu

Intrinsic connectivity reveals functionally distinct cortico-hippocampal networks in the human brain

Alexander J Barnett, Walter Reilly, Halle R Dimsdale-Zucker, Eda Mizrak, Zachariah Reagh, Charan Ranganath
2021 PLoS Biology  
The DMN could be further divided into 3 subnetworks: a "posterior medial" (PM) subnetwork comprised of posterior cingulate and lateral parietal cortices; an "anterior temporal" (AT) subnetwork comprised  ...  These networks vary in their functional connectivity (FC) along the hippocampal long axis and represent different kinds of information during memory-guided decision-making.  ...  We thank the Dynamic Memory Lab (http://dml.ucdavis.edu) for consultation on experimental design and analysis and Sam Audrain for feedback on the manuscript.  ... 
doi:10.1371/journal.pbio.3001275 pmid:34077415 pmcid:PMC8202937 fatcat:gg6pxi54qnbkrbv5l6n6lgz3ua

Network Approaches to Understand Individual Differences in Brain Connectivity: Opportunities for Personality Neuroscience

Steven H. Tompson, Emily B. Falk, Jean M. Vettel, Danielle S. Bassett
2018 Personality Neuroscience  
AbstractOver the past decade, advances in the interdisciplinary field of network science have provided a framework for understanding the intrinsic structure and function of human brain networks.  ...  In the literature, this is referred to as a static network approach, and researchers measure static brain networks while a subject is either at rest or performing a cognitively demanding task.  ...  Dynamic network methods can yield important insights into how variation in the cooperative and competitive dynamics during a cognitive task influences performance.  ... 
doi:10.1017/pen.2018.4 pmid:30221246 pmcid:PMC6133307 fatcat:vwtuqjdkqjdgjonjtu4omnwi7q

The Dynamical Balance of the Brain at Rest

Gustavo Deco, Maurizio Corbetta
2010 The Neuroscientist  
Some RSN are functionally organized as dynamically competing systems both at rest and during tasks.  ...  Large-scale systems dynamics are useful for keeping different functional subnetworks in a state of heightened competition, which can be stabilized and fired by even small modulations of either sensory  ...  (RSN) inasmuch as they have been studied in human subjects during resting wakefulness.  ... 
doi:10.1177/1073858409354384 pmid:21196530 pmcid:PMC4139497 fatcat:pztaea734rghpa6eqflqnteesi

A brain-based model of language instruction: from theory to practice

Farzaneh Iranmanesh, Mehry Haddad Narafshan, Mohammad Golshan
2021 Research and Development in Medical Education  
In effect, taking neurocognitive findings into account may have potential in developing brain-based tasks for the benefit of second language instruction in educational settings.  ...  They provide new insights into how our brain represents languages.  ...  Taking into consideration the fact that cognitive functions emerge from the dynamics of extended cortical and subcortical networks, connectome theory, with the application of graph theory, has recently  ... 
doi:10.34172/rdme.2021.017 doaj:5a2e3fe561c2489ab37c0518e8b63c2d fatcat:gzkwqkm43fhjjptnhqvlgrwxie

Toward a pluri-component, multimodal, and dynamic organization of the ventral semantic stream in humans: lessons from stimulation mapping in awake patients

Hugues Duffau, Guillaume Herbet, Sylvie Moritz-Gasser
2013 Frontiers in Systems Neuroscience  
This multi-function fascicle allows human to produce and understand language, to manipulate concepts, to apprehend and understand the world (i.e., metalinguistics, conceptualization, and awareness of knowledge  ...  cortices.  ... 
doi:10.3389/fnsys.2013.00044 pmid:23986661 pmcid:PMC3752437 fatcat:otum3am6hre7tima2v4i53zkji

Large-scale functional brain networks for consciousness

Myoung-Eun Han, Si Young Park, Sae-Ock Oh
2021 Anatomy & Cell Biology  
Despite limitations, neuroimaging data suggests brain maps for important psychological and cognitive processes such as attention, language, self-referential, emotion, motivation, social behavior, and wakefulness  ...  Initially, we review major large-scale functional brain networks associated with the horizontal connectivity (cortico-cortical communication) that underlies awareness of consciousness (attention/language  ...  Task experiments have shown that the frontoparietal network controls task switching after a start-cue and the initiation of adjustments within trials.  ... 
doi:10.5115/acb.20.305 pmid:33967030 fatcat:2svksavzevdkldr4wabotus3om

Evidence of a dissociation pattern in default mode subnetwork functional connectivity in schizophrenia

Huaning Wang, Ling-Li Zeng, Yunchun Chen, Hong Yin, Qingrong Tan, Dewen Hu
2015 Scientific Reports  
Using working memory-related paradigms, several task-related  ...  prefrontal cortex and other DMN regions, both during rest and a task 7 .  ...  Previous studies have demonstrated dynamic cooperation and competition between the DMN and other ICNs in the human brain 36, 37 , perhaps underlying the shift in focus from internal state to external  ... 
doi:10.1038/srep14655 pmid:26419213 pmcid:PMC4588504 fatcat:emr3k6sql5harimy3gpnh7s6rq

The Organisation of the Elderly Connectome [article]

Alistair Perry, Wei Wen, Anton Lord, Anbupalam Thalamuthu, Perminder Sachdev, Michael Breakspear
2015 arXiv   pre-print
Lastly, we demonstrate intriguing left-lateralized subnetworks consistent with the neural circuitry specialised for language and executive functions, while rightward subnetworks were dominant in visual  ...  Investigations of the human connectome have elucidated core features of adult structural networks, particularly the crucial role of hub-regions.  ...  Furthermore, increased FA of the CC has been associated with increased behavioural performance and inter-hemispheric functional connectivity during language-based tasks (Antonenko et al., 2013; Davis  ... 
arXiv:1502.05772v2 fatcat:rgcl3ufxavdm7iuvok5kanzdqa

Development of compositional and contextual communicable congruence in robots by using dynamic neural network models

Gibeom Park, Jun Tani
2015 Neural Networks  
In the experimental task, the humanoid robot was trained to generate specific sequential movement patterns as responding to various sequences of imperative gesture patterns demonstrated by the human subjects  ...  indicating task segmentation points.  ...  cortical areas (Sporn, 2010) .  ... 
doi:10.1016/j.neunet.2015.09.004 pmid:26498195 fatcat:34i6n6jb5bainnjued5hb2wtp4

Neuroanatomical correlates of childhood apraxia of speech: A connectomic approach

Simona Fiori, Andrea Guzzetta, Jhimli Mitra, Kerstin Pannek, Rosa Pasquariello, Paola Cipriani, Michela Tosetti, Giovanni Cioni, Stephen E Rose, Anna Chilosi
2016 NeuroImage: Clinical  
, right superior occipital gyrus and right cerebellum (subnetwork 2); right angular gyrus, right superior temporal gyrus and right inferior occipital gyrus (subnetwork 3).  ...  We hypothesize that children with CAS have altered structural connectivity in speech/language networks compared to controls and that these altered connections are related to functional speech/language  ...  We also acknowledge the Speech Language Pathologist and PROMPT certified instructor Dr. Irina Podda for her contribution in the assessment of some of the children included in the study and Dr.  ... 
doi:10.1016/j.nicl.2016.11.003 pmid:27882295 pmcid:PMC5114583 fatcat:fkyirfwthzeavae5p2p3hjqssy
« Previous Showing results 1 — 15 out of 768 results