Neural and Behavioral Effects of an Adaptive Online Verbal Working Memory Training in Healthy Middle-Aged Adults

Neural correlates of working memory (WM) training remain a matter of debate, especially in older adults. We used functional magnetic resonance imaging (fMRI) together with an n-back task to measure brain plasticity in healthy middle-aged adults following an 8-week adaptive online verbal WM training....

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Main Authors: Mónica Emch, Isabelle Ripp, Qiong Wu, Igor Yakushev, Kathrin Koch
Format: Article
Language:English
Published: Frontiers Media S.A. 2019-11-01
Series:Frontiers in Aging Neuroscience
Subjects:
Online Access:https://www.frontiersin.org/article/10.3389/fnagi.2019.00300/full
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author Mónica Emch
Mónica Emch
Mónica Emch
Isabelle Ripp
Isabelle Ripp
Isabelle Ripp
Qiong Wu
Qiong Wu
Igor Yakushev
Igor Yakushev
Igor Yakushev
Kathrin Koch
Kathrin Koch
Kathrin Koch
author_facet Mónica Emch
Mónica Emch
Mónica Emch
Isabelle Ripp
Isabelle Ripp
Isabelle Ripp
Qiong Wu
Qiong Wu
Igor Yakushev
Igor Yakushev
Igor Yakushev
Kathrin Koch
Kathrin Koch
Kathrin Koch
author_sort Mónica Emch
collection DOAJ
description Neural correlates of working memory (WM) training remain a matter of debate, especially in older adults. We used functional magnetic resonance imaging (fMRI) together with an n-back task to measure brain plasticity in healthy middle-aged adults following an 8-week adaptive online verbal WM training. Participants performed 32 sessions of this training on their personal computers. In addition, we assessed direct effects of the training by applying a verbal WM task before and after the training. Participants (mean age 55.85 ± 4.24 years) were pseudo-randomly assigned to the experimental group (n = 30) or an active control group (n = 27). Training resulted in an activity decrease in regions known to be involved in verbal WM (i.e., fronto-parieto-cerebellar circuitry and subcortical regions), indicating that the brain became potentially more efficient after the training. These activation decreases were associated with a significant performance improvement in the n-back task inside the scanner reflecting considerable practice effects. In addition, there were training-associated direct effects in the additional, external verbal WM task (i.e., HAWIE-R digit span forward task), and indicating that the training generally improved performance in this cognitive domain. These results led us to conclude that even at advanced age cognitive training can improve WM capacity and increase neural efficiency in specific regions or networks.
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spelling doaj.art-90958b6ee2854070b96d949295a7eb9d2022-12-22T01:29:18ZengFrontiers Media S.A.Frontiers in Aging Neuroscience1663-43652019-11-011110.3389/fnagi.2019.00300488690Neural and Behavioral Effects of an Adaptive Online Verbal Working Memory Training in Healthy Middle-Aged AdultsMónica Emch0Mónica Emch1Mónica Emch2Isabelle Ripp3Isabelle Ripp4Isabelle Ripp5Qiong Wu6Qiong Wu7Igor Yakushev8Igor Yakushev9Igor Yakushev10Kathrin Koch11Kathrin Koch12Kathrin Koch13Department of Neuroradiology, School of Medicine, Klinikum Rechts der Isar, Technical University of Munich, Munich, GermanyTUM-Neuroimaging Center, Technical University of Munich, Munich, GermanyGraduate School of Systemic Neurosciences, Ludwig-Maximilians-Universität, Martinsried, GermanyTUM-Neuroimaging Center, Technical University of Munich, Munich, GermanyGraduate School of Systemic Neurosciences, Ludwig-Maximilians-Universität, Martinsried, GermanyDepartment of Nuclear Medicine, School of Medicine, Klinikum Rechts der Isar, Technical University of Munich, Munich, GermanyDepartment of Neuroradiology, School of Medicine, Klinikum Rechts der Isar, Technical University of Munich, Munich, GermanyTUM-Neuroimaging Center, Technical University of Munich, Munich, GermanyTUM-Neuroimaging Center, Technical University of Munich, Munich, GermanyGraduate School of Systemic Neurosciences, Ludwig-Maximilians-Universität, Martinsried, GermanyDepartment of Nuclear Medicine, School of Medicine, Klinikum Rechts der Isar, Technical University of Munich, Munich, GermanyDepartment of Neuroradiology, School of Medicine, Klinikum Rechts der Isar, Technical University of Munich, Munich, GermanyTUM-Neuroimaging Center, Technical University of Munich, Munich, GermanyGraduate School of Systemic Neurosciences, Ludwig-Maximilians-Universität, Martinsried, GermanyNeural correlates of working memory (WM) training remain a matter of debate, especially in older adults. We used functional magnetic resonance imaging (fMRI) together with an n-back task to measure brain plasticity in healthy middle-aged adults following an 8-week adaptive online verbal WM training. Participants performed 32 sessions of this training on their personal computers. In addition, we assessed direct effects of the training by applying a verbal WM task before and after the training. Participants (mean age 55.85 ± 4.24 years) were pseudo-randomly assigned to the experimental group (n = 30) or an active control group (n = 27). Training resulted in an activity decrease in regions known to be involved in verbal WM (i.e., fronto-parieto-cerebellar circuitry and subcortical regions), indicating that the brain became potentially more efficient after the training. These activation decreases were associated with a significant performance improvement in the n-back task inside the scanner reflecting considerable practice effects. In addition, there were training-associated direct effects in the additional, external verbal WM task (i.e., HAWIE-R digit span forward task), and indicating that the training generally improved performance in this cognitive domain. These results led us to conclude that even at advanced age cognitive training can improve WM capacity and increase neural efficiency in specific regions or networks.https://www.frontiersin.org/article/10.3389/fnagi.2019.00300/fulltask-fMRIworking memory trainingactive control groupverbal working memorymiddle-aged adultsfronto-parietal activation
spellingShingle Mónica Emch
Mónica Emch
Mónica Emch
Isabelle Ripp
Isabelle Ripp
Isabelle Ripp
Qiong Wu
Qiong Wu
Igor Yakushev
Igor Yakushev
Igor Yakushev
Kathrin Koch
Kathrin Koch
Kathrin Koch
Neural and Behavioral Effects of an Adaptive Online Verbal Working Memory Training in Healthy Middle-Aged Adults
Frontiers in Aging Neuroscience
task-fMRI
working memory training
active control group
verbal working memory
middle-aged adults
fronto-parietal activation
title Neural and Behavioral Effects of an Adaptive Online Verbal Working Memory Training in Healthy Middle-Aged Adults
title_full Neural and Behavioral Effects of an Adaptive Online Verbal Working Memory Training in Healthy Middle-Aged Adults
title_fullStr Neural and Behavioral Effects of an Adaptive Online Verbal Working Memory Training in Healthy Middle-Aged Adults
title_full_unstemmed Neural and Behavioral Effects of an Adaptive Online Verbal Working Memory Training in Healthy Middle-Aged Adults
title_short Neural and Behavioral Effects of an Adaptive Online Verbal Working Memory Training in Healthy Middle-Aged Adults
title_sort neural and behavioral effects of an adaptive online verbal working memory training in healthy middle aged adults
topic task-fMRI
working memory training
active control group
verbal working memory
middle-aged adults
fronto-parietal activation
url https://www.frontiersin.org/article/10.3389/fnagi.2019.00300/full
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