ERP and Behavioral Effects of Physical and Cognitive Training on Working Memory in Aging: A Randomized Controlled Study

Working memory (WM) performance decreases with age. A promising method to improve WM is physical or cognitive training. The present randomized controlled study is aimed at evaluating the effects of different training methods on WM. A sample of 141 healthy older adults (mean age 70 years) was assigne...

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Main Authors: Patrick D. Gajewski, Michael Falkenstein
Format: Article
Language:English
Published: Wiley 2018-01-01
Series:Neural Plasticity
Online Access:http://dx.doi.org/10.1155/2018/3454835
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author Patrick D. Gajewski
Michael Falkenstein
author_facet Patrick D. Gajewski
Michael Falkenstein
author_sort Patrick D. Gajewski
collection DOAJ
description Working memory (WM) performance decreases with age. A promising method to improve WM is physical or cognitive training. The present randomized controlled study is aimed at evaluating the effects of different training methods on WM. A sample of 141 healthy older adults (mean age 70 years) was assigned to one of four groups: physical training, cognitive training, a social control group, and a no-contact control group. The participants trained for four months. Before and after the training, n-back task during an EEG recording was applied. The results show that cognitive training enhanced the target detection rate in the 2-back task. This was corroborated by an increased number of repeated digits in the backward digit-span test but not in other memory tests. The improvement of WM was supported by an increased P3a prior to a correct target and an increased P3b both in nontarget and target trials. No ERP effects in the physical and no-contact control groups were found, while a reduction of P3a and P3b was found in the social control group. Thus, cognitive training enhances frontal and parietal processing related to the maintenance of a stored stimulus for subsequent matching with an upcoming stimulus and increases allocation of cognitive resources. These results indicate that multidomain cognitive training may increase WM capacity and neuronal activity in older age.
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spelling doaj-art-bb5a80fe2c6d4184bb2f44fda87c6ade2025-02-03T01:24:01ZengWileyNeural Plasticity2090-59041687-54432018-01-01201810.1155/2018/34548353454835ERP and Behavioral Effects of Physical and Cognitive Training on Working Memory in Aging: A Randomized Controlled StudyPatrick D. Gajewski0Michael Falkenstein1Leibniz Research Centre for Working Environment and Human Factors (IfADo), Dortmund, GermanyInstitute for Working Learning Ageing (ALA), Bochum, GermanyWorking memory (WM) performance decreases with age. A promising method to improve WM is physical or cognitive training. The present randomized controlled study is aimed at evaluating the effects of different training methods on WM. A sample of 141 healthy older adults (mean age 70 years) was assigned to one of four groups: physical training, cognitive training, a social control group, and a no-contact control group. The participants trained for four months. Before and after the training, n-back task during an EEG recording was applied. The results show that cognitive training enhanced the target detection rate in the 2-back task. This was corroborated by an increased number of repeated digits in the backward digit-span test but not in other memory tests. The improvement of WM was supported by an increased P3a prior to a correct target and an increased P3b both in nontarget and target trials. No ERP effects in the physical and no-contact control groups were found, while a reduction of P3a and P3b was found in the social control group. Thus, cognitive training enhances frontal and parietal processing related to the maintenance of a stored stimulus for subsequent matching with an upcoming stimulus and increases allocation of cognitive resources. These results indicate that multidomain cognitive training may increase WM capacity and neuronal activity in older age.http://dx.doi.org/10.1155/2018/3454835
spellingShingle Patrick D. Gajewski
Michael Falkenstein
ERP and Behavioral Effects of Physical and Cognitive Training on Working Memory in Aging: A Randomized Controlled Study
Neural Plasticity
title ERP and Behavioral Effects of Physical and Cognitive Training on Working Memory in Aging: A Randomized Controlled Study
title_full ERP and Behavioral Effects of Physical and Cognitive Training on Working Memory in Aging: A Randomized Controlled Study
title_fullStr ERP and Behavioral Effects of Physical and Cognitive Training on Working Memory in Aging: A Randomized Controlled Study
title_full_unstemmed ERP and Behavioral Effects of Physical and Cognitive Training on Working Memory in Aging: A Randomized Controlled Study
title_short ERP and Behavioral Effects of Physical and Cognitive Training on Working Memory in Aging: A Randomized Controlled Study
title_sort erp and behavioral effects of physical and cognitive training on working memory in aging a randomized controlled study
url http://dx.doi.org/10.1155/2018/3454835
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