Modulation of Working Memory and Resting-State fMRI by tDCS of the Right Frontoparietal Network.
Adolescent
Adult
Cross-Over Studies
Double-Blind Method
Female
Frontal Lobe
/ diagnostic imaging
Humans
Magnetic Resonance Imaging
Male
Memory, Short-Term
/ physiology
Neuropsychological Tests
Parietal Lobe
/ diagnostic imaging
Reaction Time
/ physiology
Transcranial Direct Current Stimulation
Young Adult
Journal
Neural plasticity
ISSN: 1687-5443
Titre abrégé: Neural Plast
Pays: United States
ID NLM: 100883417
Informations de publication
Date de publication:
2021
2021
Historique:
received:
11
02
2021
revised:
25
06
2021
accepted:
09
07
2021
entrez:
5
8
2021
pubmed:
6
8
2021
medline:
21
1
2022
Statut:
epublish
Résumé
Many cognitive functions, including working memory, are processed within large-scale brain networks. We targeted the right frontoparietal network (FPN) with one session of transcranial direct current stimulation (tDCS) in an attempt to modulate the cognitive speed of a visual working memory task (WMT) in 27 young healthy subjects using a double-blind crossover design. We further explored the neural underpinnings of induced changes by performing resting-state fMRI prior to and immediately after each stimulation session with the main focus on the interaction between a task-positive FPN and a task-negative default mode network (DMN). Twenty minutes of 2 mA anodal tDCS was superior to sham stimulation in terms of cognitive speed manipulation of a subtask with processing of objects and tools in unconventional views (i.e., the higher cognitive load subtask of the offline WMT). This result was linked to the magnitude of resting-state functional connectivity decreases between the stimulated FPN seed and DMN seeds. We provide the first evidence for the action reappraisal mechanism of object and tool processing. Modulation of cognitive speed of the task by tDCS was reflected by FPN-DMN cross-talk changes.
Identifiants
pubmed: 34349797
doi: 10.1155/2021/5594305
pmc: PMC8328716
doi:
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
5594305Informations de copyright
Copyright © 2021 Monika Pupíková et al.
Déclaration de conflit d'intérêts
The authors declare that there is no conflict of interest regarding the publication of this paper.
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