Cited by 162Functional Brain Connectivity StudiesCognitive Abilities and TestingNeural dynamics and brain function

Effects of working memory training on functional connectivity and cerebral blood flow during rest

Takeuchi, Hikaru, Taki, Yasuyuki, Nouchi, Rui, Hashizume, Hiroshi, Sekiguchi, Atsushi, Kotozaki, Yuka, Nakagawa, Seishu, Miyauchi, Calros M. +2 more·2013·Cortex

Abstract

Working memory (WM) training (WMT) alters the task-related brain activity and structure of the external attention system (EAS). We investigated whether WMT also alters resting-state brain mechanisms, which are assumed to reflect intrinsic brain activity and connectivity. Our study subjects were subjected to a 4-week WMT program and brain scans before and after the intervention for determining changes of functional connectivity and regional cerebral blood flow during rest (resting-FC/resting-rCBF). Compared with no-intervention, WMT (a) increased resting-FC between the medial prefrontal cortex (mPFC) and precuneus, which are key nodes of the default mode network (DMN), (b) decreased resting-FC between mPFC and the right posterior parietal cortex/right lateral prefrontal cortex (LPFC), which are key nodes of the EAS, and (c) increased resting-rCBF in the right LPFC. However, the training-related decreases in resting-FC between the key DMN node and the nodes of EAS were only observed when the whole brain signal was regressed out in individual analyses, and these changes were not observed when the whole brain signal was not regressed out in individual analyses. Further analyses indicated that these differences may be mediated by a weak but a widespread increase in resting-FC between the nodes of EAS and activity of multiple bilateral areas across the brain. These results showed that WMT induces plasticity in neural mechanisms involving DMN and the EAS during rest and indicated that intrinsic brain activity and connectivity can be affected by cognitive training.

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Crossref · 10.1016/j.cortex.2012.09.007

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  • Only two fMRI studies have investigated resting-state functional connectivity changes in relation to WM training.

    “Yet, only two fMRI studies have investigated resting-state functional connectivity changes in relation to WM training [28, 29].”
  • These two studies reported connectivity changes, both increases and decreases, within and between regions of the frontal parietal and the default mode network (DMN).

    “Using a priori defined ROIs or networks of interest, these two studies reported connectivity changes, both increases and decreases, within and between regions of the frontal parietal and the default mode network (DMN).”

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Authors
Takeuchi, H., Taki, Y., Nouchi, R., Hashizume, H., Sekiguchi, A., Kotozaki, Y., Nakagawa, S., Miyauchi, C. M., Sassa, Y., & Kawashima, R.
Affiliations
Tohoku University (JP)
Corresponding author
Takeuchi, Hikaru
Venue
Cortex
Publisher
Elsevier BV
Published
2013-09
Volume
49
Issue
8
Pages
2106-2125
ISSN
0010-9452 (ISSN-L)
OpenAlex
W2122182358
Cited by
162
References
81
Citations by year
2026: 5 · 2025: 7 · 2024: 14 · 2023: 7 · 2022: 8 · 2021: 15 · 2020: 18 · 2019: 9 · 2018: 12 · 2017: 11 · 2016: 16 · 2015: 14 · 2014: 17 · 2013: 9
FWCI
6.55
Type
journal article
Language
en
Open access
closed
Locations
  • Cortex (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Japan Science and Technology Agency
  • Core Research for Evolutional Science and Technology (KAKENHI 23700306)
  • Ministry of Education, Culture, Sports, Science and Technology
  • Research Institute of Science and Technology for Society
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Functional Brain Connectivity Studies
  • Social Sciences › Psychology › Experimental and Cognitive Psychology › Cognitive Abilities and Testing
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Neural dynamics and brain function
Keywords
working memory training, resting-state functional connectivity, resting cerebral blood flow, default mode network, medial prefrontal cortex, precuneus, lateral prefrontal cortex, posterior parietal cortex, neuroplasticity, cognitive training, intrinsic brain activity
MeSH terms
Attention, Brain, Brain Mapping, Cerebral Cortex, Female, Humans, Male, Memory, Short-Term, Neural Pathways, Neuronal Plasticity, Parietal Lobe, Prefrontal Cortex, Young Adult

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