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Context-specific differences in fronto-parieto-occipital effective connectivity during short-term memory maintenance

Bornali Kundu, Jui-Yang Chang, Bradley R. Postle, Barry D. Van Veen
2015 NeuroImage  
Thus, although a common anatomical network may serve VSTM in different contexts, it does so via specific functions that are carried out within distinct, dynamically configured frequency channels.  ...  Although visual short-term memory (VSTM) performance has been hypothesized to rely on two distinct mechanisms, capacity and filtering, the two have not been dissociated using network-level causality measures  ...  Overview of tasks Two tasks were used to test short-term memory (STM).  ... 
doi:10.1016/j.neuroimage.2015.04.001 pmid:25863155 pmcid:PMC4446161 fatcat:wkenhtqhpnd3ha7fehixforgpq

Successful Working Memory Processes and Cerebellum in an Elderly Sample: A Neuropsychological and fMRI Study

Elkin O. Luis, Gonzalo Arrondo, Marta Vidorreta, Martin Martínez, Francis Loayza, María A. Fernández-Seara, María A. Pastor, Andrea Antal
2015 PLoS ONE  
Imaging studies help to understand the evolution of key cognitive processes related to aging, such as working memory (WM). This study aimed to test three hypotheses in older adults.  ...  First, that the brain activation pattern associated to WM processes in elderly during successful low load tasks is located in posterior sensory and associative areas; second, that the prefrontal and parietal  ...  The authors thank Dr Maria Bennet, Dr Nuria Pujol, Dr Juan Narbona, Dr Miguel Valencia and Dr Donald McLaren for valuable comments in the preparation of the neuropsychological evaluation and the statistical  ... 
doi:10.1371/journal.pone.0131536 pmid:26132286 pmcid:PMC4488500 fatcat:v576xzt6ofg3fadqbhlytp63c4

The Impact of Mild-to-Severe Hearing Loss on the Neural Dynamics Serving Verbal Working Memory Processing in Children

Elizabeth Heinrichs-Graham, Elizabeth A. Walker, Jacob A. Eastman, Michaela R. Frenzel, Timothy R. Joe, Ryan W. McCreery
2021 NeuroImage: Clinical  
In contrast, CHL showed elevated alpha maintenance-related activity in the right precentral and parieto-occipital cortices.  ...  Crucially, right superior frontal encoding activity and right parieto-occipital maintenance activity correlated with language ability across groups.  ...  The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.  ... 
doi:10.1016/j.nicl.2021.102647 pmid:33838545 fatcat:kplmhhy6nzbq3a6qlrpjpojqae

M/EEG Dynamics Underlying Reserve, Resilience, and Maintenance in Aging: A Review

Gwendolyn Jauny, Francis Eustache, Thomas Thierry Hinault
2022 Frontiers in Psychology  
Maintenance of young-like synchrony patterns was also observed in healthy older individuals.  ...  In this study, we synthesized the current state of knowledge from magnetoencephalography (MEG) and electroencephalography (EEG) studies that investigated the contribution of maintenance of neural synchrony  ...  ) (fronto-parietooccipital), alpha (fronto-temporo-occipital) and Older healthy adults low cognitive 12 beta (parieto-fronto-temporo-occipital) connectivity would reserve (69.7) allow maintenance of cognitive  ... 
doi:10.3389/fpsyg.2022.861973 pmid:35693495 pmcid:PMC9174693 fatcat:tpqkm73xm5dqfnsvu7ngxrjstq

Rapid Distributed Fronto-parieto-occipital Processing Stages During Working Memory in Humans

E. Halgren
2002 Cerebral Cortex  
Cortical potentials were recorded from implanted electrodes during a difficult working memory task requiring rapid storage, modification and retrieval of multiple memoranda.  ...  occipital cortex.  ...  fronto-parietal interactions during working memory retention were in the theta and alpha bands.  ... 
doi:10.1093/cercor/12.7.710 pmid:12050083 fatcat:imnxydsyyreezaxnj75ul3tjoe

Acute Sleep Deprivation Induces a Local Brain Transfer Information Increase in the Frontal Cortex in a Widespread Decrease Context

Joan Alonso, Sergio Romero, Miguel Mañanas, Marta Alcalá, Rosa Antonijoan, Sandra Giménez
2016 Sensors  
Changes during sleep deprivation in brain network were measured effectively by TE, which showed increased local connectivity and diminished global integration.  ...  from parieto-occipital activity to the rest of the head.  ...  This contract also covers the costs to publish in open access.  ... 
doi:10.3390/s16040540 pmid:27089346 pmcid:PMC4851054 fatcat:ptmsklcb2jbhnpw6ojuxk44msy

Dissociable theta networks underlie the switch and mixing costs during task switching

Montana McKewen, Patrick S. Cooper, Patrick Skippen, Aaron S. W. Wong, Patricia T. Michie, Frini Karayanidis
2021 Human Brain Mapping  
During the preparation interval, mixing effects were associated with connectivity from the frontal seed to parietal sites, and switch effects with connectivity from the parietal seed to occipital sites  ...  Lateralised occipital connectivity was common to both switch and mixing effects. After target onset, frontal and parietal seeds showed a similar pattern of connectivity across trial types.  ...  processes, and a network of midfrontal to parieto-occipital connections associated the maintenance of the relevant task-set.  ... 
doi:10.1002/hbm.25573 pmid:34184803 pmcid:PMC8410519 fatcat:udayy2hokrgc7okq2ynus45mqu

Dynamic Cognitive States Predict Individual Variability in Behavior and Modulate with EEG Functional Connectivity during Working Memory [article]

Christine Beauchene, Thomas T Hinault, Sridevi Sarma, Susan Courtney
2021 bioRxiv   pre-print
Short-term fluctuations in strategy, attention, or motivation can cause large variability in cognitive performance across task trials.  ...  We show how the participant-specific states reflect neural activity by identifying EEG functional connectivity features that modulate with each state.  ...  Interestingly, for the Previous Accuracy State, we observed a different relationship for the left parieto -occipital gamma activity versus right fronto -parietal gamma connectivity.  ... 
doi:10.1101/2021.08.02.454757 fatcat:xdjvcasnejbudiqr56teeka35y

Association Between Learning Capabilities and Practice-Related Activation Changes in Schizophrenia

Kathrin Koch, Gerd Wagner, Claudia Schachtzabel, Christoph Schultz, Heinrich Sauer, Ralf G. M. Schlösser
2010 Schizophrenia Bulletin  
successful short-term learning.  ...  This was reflected by relatively stronger signal decreases in a predominantly fronto-parieto-cerebellar network.  ...  A great number of studies investigated the effect of symptomatology on different cognitive processes necessary for successful short-term learning like attention, short-term maintenance, and executive processing  ... 
doi:10.1093/schbul/sbq028 pmid:20368310 pmcid:PMC2879680 fatcat:keaiwdswufa37paprjwczux5o4

The Importance of Encoding-Related Neural Dynamics in the Prediction of Inter-Individual Differences in Verbal Working Memory Performance

Steve Majerus, Eric Salmon, Lucie Attout, Krish Sathian
2013 PLoS ONE  
Studies of brain-behaviour interactions in the field of working memory (WM) have associated WM success with activation of a fronto-parietal network during the maintenance stage, and this mainly for visuo-spatial  ...  Using an inter-individual differences approach, we demonstrate here the equal importance of neural dynamics during the encoding stage, and this in the context of verbal WM tasks which are characterized  ...  Many studies now agree on the important role of the intraparietal cortex in WM tasks, by showing that the bilateral IPS, in both anterior and posterior parts, is sensitive to memory load during short-term  ... 
doi:10.1371/journal.pone.0069278 pmid:23874935 pmcid:PMC3706424 fatcat:gea6tv2sdfd2vfx2ex2gevbmva

Phonological memory in sign language relies on the visuomotor neural system outside the left hemisphere language network

Yuji Kanazawa, Kimihiro Nakamura, Toru Ishii, Toshihiko Aso, Hiroshi Yamazaki, Koichi Omori, Esteban Andres Fridman
2017 PLoS ONE  
In particular, language development in those people should heavily rely on the verbal short-term memory (STM) via sign language.  ...  Interestingly, while most participants reported that they relied on phonological memory during maintenance, direct comparisons between letters and fingers revealed strikingly different patterns of neural  ...  The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.  ... 
doi:10.1371/journal.pone.0177599 pmid:28931014 pmcid:PMC5607140 fatcat:fz4kqdr7zrd5zp5fnhi4sssrxq

Time Course of Information Processing in Visual and Haptic Object Classification

Jasna Martinovic, Rebecca Lawson, Matt Craddock
2012 Frontiers in Human Neuroscience  
Analyses focused on the evoked and total fronto-central theta-band (5-7 Hz; a marker of working memory) and the occipital upper alpha-band (10-12 Hz; a marker of perceptual processing) locked to the onset  ...  Is haptic object identification slower simply due to sequential information acquisition and the resulting memory load or due to more fundamental processing differences between the senses?  ...  Effective connectivity analyses suggest that there is greater use of top-down mechanisms during haptic exploration of familiar objects, while LOC activity during exploration of unfamiliar objects is largely  ... 
doi:10.3389/fnhum.2012.00049 pmid:22470327 pmcid:PMC3311268 fatcat:pbgdrwxbr5avvok2o4kmc6kud4

Attentional and cognitive monitoring brain networks in long-term meditators depend on meditation states and expertise

Juliana Yordanova, Vasil Kolev, Valentina Nicolardi, Luca Simione, Federica Mauro, Patrizia Garberi, Antonino Raffone, Peter Malinowski
2021 Scientific Reports  
) and medial-frontal (MF) brain networks in highly experienced meditators during different meditation states (focused attention, open monitoring and loving kindness meditation).  ...  To evaluate the functional involvement of attentional and cognitive monitoring processes during meditation, the present study analysed the electroencephalographic synchronization of fronto-parietal (FP  ...  Acknowledgements We would like to express our gratitude and appreciation to the monks, nuns and novices of Amaravati and Santacittarama Buddhist Monasteries for their outstanding dedication and participation in  ... 
doi:10.1038/s41598-021-84325-3 pmid:33649378 pmcid:PMC7921394 fatcat:665xtc6wyjhx3hfimzqajno2sq

The neural correlates of verbal short-term memory in Alzheimer's disease: an fMRI study

F. Peters, F. Collette, C. Degueldre, V. Sterpenich, S. Majerus, E. Salmon
2009 Brain  
In both groups, the short-term memory task elicited a distributed fronto-parieto-temporal activation that encompassed bilateral inferior frontal, insular, supplementary motor, precentral and postcentral  ...  Although many studies have shown diminished performance in verbal short-term memory tasks in Alzheimer's disease, few studies have explored the neural correlates of impaired verbal short-term memory in  ...  In both groups, the recognition task used elicited a distributed fronto-parieto-temporal network that was consistent with previous studies of verbal short-term memory in young subjects.  ... 
doi:10.1093/brain/awp075 pmid:19433442 fatcat:pwybvn36ivdrlepyqxrxncr6ye

A theory of working memory without consciousness or sustained activity [article]

Darinka Trubutschek, Sebastien Marti, Andres Ojeda, Jean-Remi King, Yuanyuan Mi, Misha Tsodyks, Stanislas Dehaene
2016 bioRxiv   pre-print
During non-conscious working memory, such activity vanished.  ...  location in posterior sensors.  ...  (B) Model of a synaptic connection with short-term potentiation.  ... 
doi:10.1101/093815 fatcat:v2m3hcup7jazzh6updq626aegy
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