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2020 Fiscal Year Final Research Report

Establishment of a magnetoencephalographic method to estimate verbal memory

Research Project

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Project/Area Number 19K16897
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 51020:Cognitive and brain science-related
Research InstitutionOsaka University

Principal Investigator

ARAKI Toshihiko  大阪大学, 医学部附属病院, 技術職員 (20755277)

Project Period (FY) 2019-04-01 – 2021-03-31
Keywords言語性記憶力 / 脳磁図 / 脳活動
Outline of Final Research Achievements

In this study, to establish a verbal memory test method using magnetoencephalography, we examined the relationship between brain activity during a verbal task and verbal memory scores using magnetoencephalography in healthy subjects.
The results showed a significant negative correlation between verbal memory scores and the intensity of alpha-band activity in the left hemisphere occurring 1 second after the presentation of a verbal task, and that people with higher levels of this activity tended to have lower verbal memory.

Free Research Field

神経生理学

Academic Significance and Societal Importance of the Research Achievements

脳磁図で計測された脳活動が実際の言語能力の一つである言語性記憶力と相関関係があるということは本研究で初めて明らかになったことであり、脳磁図の脳活動から言語性記憶力が推定できる可能性があることを示している。今後、認知症やてんかんなど実際に言語性記憶力が低下している患者群で同様の検討を進めることで脳磁図による簡便で患者に負担の少ない言語性記憶力検査法の確立に寄与すると考えられる。

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Published: 2022-01-27  

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