fNIRS measurement of cortical activation and functional connectivity during a visuospatial working memory task.

Demands on visuospatial working memory are a ubiquitous part of everyday life. As such, significant efforts have been made to understand how the brain responds to these demands in real-world environments. Multiple brain imaging studies have highlighted a fronto-parietal cortical network that underli...

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Main Authors: Joseph M Baker, Jennifer L Bruno, Andrew Gundran, S M Hadi Hosseini, Allan L Reiss
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2018-01-01
Series:PLoS ONE
Online Access:http://europepmc.org/articles/PMC6072025?pdf=render
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author Joseph M Baker
Jennifer L Bruno
Andrew Gundran
S M Hadi Hosseini
Allan L Reiss
author_facet Joseph M Baker
Jennifer L Bruno
Andrew Gundran
S M Hadi Hosseini
Allan L Reiss
author_sort Joseph M Baker
collection DOAJ
description Demands on visuospatial working memory are a ubiquitous part of everyday life. As such, significant efforts have been made to understand how the brain responds to these demands in real-world environments. Multiple brain imaging studies have highlighted a fronto-parietal cortical network that underlies visuospatial working memory, is modulated by cognitive load, and that appears to respond uniquely to encoding versus retrieval components. Furthermore, multiple studies have identified functional connectivity in regions of the fronto-parietal network during working memory tasks. Together, these findings have helped outline important aspects of the neural architecture that underlies visuospatial working memory. Here, we provide results from the first fNIRS-based investigation of fronto-parietal signatures of cortical activation and functional connectivity during a computer-based visuospatial working memory task. Our results indicate that the local maxima of cortical activation and functional coherence do not necessarily overlap spatially, and that cortical activation is significantly more susceptible to task-specific demands compared to functional connectivity. These results highlight important and novel information regarding neurotypical signatures of cortical activation and functional connectivity during visuospatial working memory. Our findings also demonstrate the utility of fNIRS for interrogating these cognitive processes.
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spelling doaj.art-c99b0ee761b44e9d8bfc43983f7c3de52022-12-22T00:49:27ZengPublic Library of Science (PLoS)PLoS ONE1932-62032018-01-01138e020148610.1371/journal.pone.0201486fNIRS measurement of cortical activation and functional connectivity during a visuospatial working memory task.Joseph M BakerJennifer L BrunoAndrew GundranS M Hadi HosseiniAllan L ReissDemands on visuospatial working memory are a ubiquitous part of everyday life. As such, significant efforts have been made to understand how the brain responds to these demands in real-world environments. Multiple brain imaging studies have highlighted a fronto-parietal cortical network that underlies visuospatial working memory, is modulated by cognitive load, and that appears to respond uniquely to encoding versus retrieval components. Furthermore, multiple studies have identified functional connectivity in regions of the fronto-parietal network during working memory tasks. Together, these findings have helped outline important aspects of the neural architecture that underlies visuospatial working memory. Here, we provide results from the first fNIRS-based investigation of fronto-parietal signatures of cortical activation and functional connectivity during a computer-based visuospatial working memory task. Our results indicate that the local maxima of cortical activation and functional coherence do not necessarily overlap spatially, and that cortical activation is significantly more susceptible to task-specific demands compared to functional connectivity. These results highlight important and novel information regarding neurotypical signatures of cortical activation and functional connectivity during visuospatial working memory. Our findings also demonstrate the utility of fNIRS for interrogating these cognitive processes.http://europepmc.org/articles/PMC6072025?pdf=render
spellingShingle Joseph M Baker
Jennifer L Bruno
Andrew Gundran
S M Hadi Hosseini
Allan L Reiss
fNIRS measurement of cortical activation and functional connectivity during a visuospatial working memory task.
PLoS ONE
title fNIRS measurement of cortical activation and functional connectivity during a visuospatial working memory task.
title_full fNIRS measurement of cortical activation and functional connectivity during a visuospatial working memory task.
title_fullStr fNIRS measurement of cortical activation and functional connectivity during a visuospatial working memory task.
title_full_unstemmed fNIRS measurement of cortical activation and functional connectivity during a visuospatial working memory task.
title_short fNIRS measurement of cortical activation and functional connectivity during a visuospatial working memory task.
title_sort fnirs measurement of cortical activation and functional connectivity during a visuospatial working memory task
url http://europepmc.org/articles/PMC6072025?pdf=render
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