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ID 68253
フルテキストURL
fulltext.pdf 3.07 MB
著者
Wang, Chenyu Graduate School of Interdisciplinary Science and Engineering in Health Systems, Okayama University
Yu, Yinghua Graduate School of Interdisciplinary Science and Engineering in Health Systems, Okayama University
Yang, Jiajia Graduate School of Interdisciplinary Science and Engineering in Health Systems, Okayama University ORCID Kaken ID publons researchmap
抄録
Background: Transferring learned manipulations to new manipulation tasks has enabled humans to realize thousands of dexterous object manipulations in daily life. Two-digit grasp and three-digit grasp manipulations require different fingertip forces, and our brain can switch grasp types to ensure good performance according to motor memory. We hypothesized that several brain areas contribute to the execution of the new type of motor according to the motor memory. However, the motor memory mechanisms during this transfer period are still unclear. In the present functional magnetic resonance imaging (fMRI) study, we aimed to investigate the cortical mechanisms involved in motor memory during the transfer phase of learned manipulation tasks. Methods: Using a custom-built T-shaped object with an adjustable weight distribution, the participants performed grasp and lift manipulation tasks under different conditions to simulate the learning and transfer phases. The learning phase consisted of four grasp-and-lift repetitions with one motor type, followed by a transfer phase with four repetitions involving different motors (adding or removing a digit). Results: By comparing brain activity in the learning and transfer phases, we identified three regions (the superior frontal gyrus, supramarginal gyrus, and postcentral gyrus) associated with motor memory during the transfer of learned manipulations. Conclusions: Our findings improve the understanding of the role of the posterior parietal cortex in motor memory, highlighting how sensory information from memory and real-time input is integrated to generate novel motor control signals that guide the precise reapplication of control strategies. Furthermore, we believe that these areas contribute to motor learning from motor memory and may serve as key regions of interest for investigating neurodegenerative diseases.
キーワード
fMRI
motor learning and transfer
primary sensorimotor cortex
posterior parietal cortex
発行日
2024-11-26
出版物タイトル
Brain Sciences
14巻
12号
出版者
MDPI
開始ページ
1184
ISSN
2076-3425
資料タイプ
学術雑誌論文
言語
英語
OAI-PMH Set
岡山大学
著作権者
© 2024 by the authors.
論文のバージョン
publisher
PubMed ID
DOI
Web of Science KeyUT
関連URL
isVersionOf https://doi.org/10.3390/brainsci14121184
ライセンス
https://creativecommons.org/licenses/by/4.0/
Citation
Wang, C.; Yu, Y.; Yang, J. Contributions of the Primary Sensorimotor Cortex and Posterior Parietal Cortex to Motor Learning and Transfer. Brain Sci. 2024, 14, 1184. https://doi.org/10.3390/brainsci14121184
助成機関名
Japan Science and Technology Agency
Japan Society for the Promotion of Science
助成番号
JPMJFR2041
JP22K07327