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research article

Early motor skill acquisition in healthy older adults: brain correlates of the learning process

Durand-Ruel, Manon  
•
Park, Chang-hyun  
•
Moyne, Maeva
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March 14, 2023
Cerebral Cortex

Motor skill learning is a crucial process at all ages. However, healthy aging is often accompanied by a reduction in motor learning capabilities. This study characterized the brain dynamics of healthy older adults during motor skill acquisition and identified brain regions associated with changes in different components of performance. Forty-three subjects participated in a functional magnetic resonance imaging study during which they learned a sequential grip force modulation task. We evaluated the continuous changes in brain activation during practice as well as the continuous performance-related changes in brain activation. Practice of the motor skill was accompanied by increased activation in secondary motor and associative areas. In contrast, visual and frontal areas were less recruited as task execution progressed. Subjects showed significant improvements on the motor skill. While faster execution relied on parietal areas and was inversely associated with frontal activation, accuracy was related to activation in primary and secondary motor areas. Better performance was achieved by the contribution of parietal regions responsible for efficient visuomotor processing and cortical motor regions involved in the correct action selection. The results add to the understanding of online motor learning in healthy older adults, showing complementary roles of specific networks for implementing changes in precision and speed.

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Type
research article
DOI
10.1093/cercor/bhad044
Web of Science ID

WOS:000949215500001

Author(s)
Durand-Ruel, Manon  
•
Park, Chang-hyun  
•
Moyne, Maeva
•
Maceira-Elvira, Pablo  
•
Morishita, Takuya  
•
Hummel, Friedhelm C.
Date Issued

2023-03-14

Publisher

OXFORD UNIV PRESS INC

Published in
Cerebral Cortex
Subjects

Neurosciences

•

Neurosciences & Neurology

•

fmri

•

short-term motor learning

•

healthy aging

•

parametric modulation

•

continuous changes

•

anterior cingulate cortex

•

age-related differences

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short-term

•

task

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activation

•

performance

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accuracy

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networks

•

connectivity

Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
UPHUMMEL  
Available on Infoscience
April 10, 2023
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/196790
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