Learning of bimanual motor sequences in normal aging

While it is well accepted that motor performance declines with age, the ability to learn simple procedural motor tasks appears to remain intact to some extent in normal aging. Here we examined the impact of aging on the acquisition of a simple sequence of bimanual actions. We further asked whether s...

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Main Authors: Rashmi eBhakuni, Pratik K Mutha
Format: Article
Language:English
Published: Frontiers Media S.A. 2015-05-01
Series:Frontiers in Aging Neuroscience
Subjects:
Online Access:http://journal.frontiersin.org/Journal/10.3389/fnagi.2015.00076/full
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author Rashmi eBhakuni
Pratik K Mutha
author_facet Rashmi eBhakuni
Pratik K Mutha
author_sort Rashmi eBhakuni
collection DOAJ
description While it is well accepted that motor performance declines with age, the ability to learn simple procedural motor tasks appears to remain intact to some extent in normal aging. Here we examined the impact of aging on the acquisition of a simple sequence of bimanual actions. We further asked whether such learning results from an overall decrease in response time or is also associated with improved coordination between the hands. Healthy young and old individuals performed a bimanual version of the classic serial reaction time task. We found no learning deficit in older adults and noted that older subjects were able to learn as much as young participants. We also observed that learning in both groups was associated with an overall decrease in response time, but switch cost, the increase in response time when a switch in hands was required during sequence execution, did not decrease with learning. Surprisingly however, overall switch cost was lower in the older group compared to the younger subjects. These findings are discussed in the context of interactions between procedural and declarative memory, reduced interhemispheric inhibition and more symmetric cortical activation during motor performance in normal aging.
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spelling doaj.art-1f4fc36fd347425fb7164d87d7fc3f582022-12-21T18:48:08ZengFrontiers Media S.A.Frontiers in Aging Neuroscience1663-43652015-05-01710.3389/fnagi.2015.00076130270Learning of bimanual motor sequences in normal agingRashmi eBhakuni0Pratik K Mutha1Indian Institute of Technology GandhinagarIndian Institute of Technology GandhinagarWhile it is well accepted that motor performance declines with age, the ability to learn simple procedural motor tasks appears to remain intact to some extent in normal aging. Here we examined the impact of aging on the acquisition of a simple sequence of bimanual actions. We further asked whether such learning results from an overall decrease in response time or is also associated with improved coordination between the hands. Healthy young and old individuals performed a bimanual version of the classic serial reaction time task. We found no learning deficit in older adults and noted that older subjects were able to learn as much as young participants. We also observed that learning in both groups was associated with an overall decrease in response time, but switch cost, the increase in response time when a switch in hands was required during sequence execution, did not decrease with learning. Surprisingly however, overall switch cost was lower in the older group compared to the younger subjects. These findings are discussed in the context of interactions between procedural and declarative memory, reduced interhemispheric inhibition and more symmetric cortical activation during motor performance in normal aging.http://journal.frontiersin.org/Journal/10.3389/fnagi.2015.00076/fullAgingmotor learningSerial Reaction Time Taskskillbimanual actions
spellingShingle Rashmi eBhakuni
Pratik K Mutha
Learning of bimanual motor sequences in normal aging
Frontiers in Aging Neuroscience
Aging
motor learning
Serial Reaction Time Task
skill
bimanual actions
title Learning of bimanual motor sequences in normal aging
title_full Learning of bimanual motor sequences in normal aging
title_fullStr Learning of bimanual motor sequences in normal aging
title_full_unstemmed Learning of bimanual motor sequences in normal aging
title_short Learning of bimanual motor sequences in normal aging
title_sort learning of bimanual motor sequences in normal aging
topic Aging
motor learning
Serial Reaction Time Task
skill
bimanual actions
url http://journal.frontiersin.org/Journal/10.3389/fnagi.2015.00076/full
work_keys_str_mv AT rashmiebhakuni learningofbimanualmotorsequencesinnormalaging
AT pratikkmutha learningofbimanualmotorsequencesinnormalaging