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01 教育学部・教育学研究科

1-1 学術雑誌論文

Permalink : http://hdl.handle.net/10131/9038

Frontal midline theta rhythm and gamma power changes during focused attention on mental calculation: an MEG beamformer analysis 利用統計を見る

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Ishii_Gunji2014r.pdf
Ishii_Gunji2014r.pdf (2.62MB) [ 128 downloads ]

アイテムタイプ	学術雑誌論文 / Journal Article
言語	英語
キーワード	frontal midline theta, focused attention, arithmetic calculation, gamma band, magnetoencephalography(MEG), syntheticaperturemagnetometry(SAM), beamformer, spatialfiltering
著者	Ishii Ryouhei Canuet Leonides Ishihara Tsutomu Aoki Yasunori Ikeda Shunichiro Hata Masahiro Katsimichas Themistoklis Gunji Atsuko ( 科研費研究者番号: 70392446 ) Takahashi Hidetoshi Nakahachi Takayuki Iwase Masao Takeda Masatoshi
著者(ヨミ)	イシイリョウヘイイシハラツトムアオキヤスノリイケダシュンイチロウハタマサヒログンジアツコ ( 科研費研究者番号: 70392446 ) タカハシヒデトシナカハチタカユキイワセマサオタケダマサトシ
著者別名	軍司敦子 ( 科研費研究者番号: 70392446 )
著者所属	Department of Psychiatry, Osaka University Graduate School of Medicine Department of Cognitive and Computational Neuroscience, Centre for Biomedical Technology, Complutense University of Madrid Department of Psychiatry, Osaka University Graduate School of Medicine Department of Psychiatry, Osaka University Graduate School of Medicine Department of Psychiatry, Osaka University Graduate School of Medicine / Osaka Psychiatric Medical Center Department of Psychiatry, Osaka University Graduate School of Medicine Department of Psychiatry, Osaka University Graduate School of Medicine FacultyofEducationandHumanSciences,CourseofSchoolEducation,YokohamaNationalUniversity Department of Child and Adolescent Mental Health, National Center for Neurology and Psychiatry, National Institute of Mental Health Department of Child and Adolescent Mental Health, National Center for Neurology and Psychiatry, National Institute of Mental Health Department of Psychiatry, Osaka University Graduate School of Medicine Department of Psychiatry, Osaka University Graduate School of Medicine
抄録	Frontal midline theta rhythm (Fmθ) appears widely distributed over medial prefrontal areas in EEG recordings, indicating focused attention. Although mental calculation is often used as an attention-demanding task, little has been reported on calculation-related activation in Fmθ experiments. In this study we used spatially filtered MEG and permutation analysis to precisely localize cortical generators of the magnetic counterpart of Fmθ, as well as other sources of oscillatory activity associated with mental calculation processing (i.e., arithmetic subtraction). Our results confirmed and extended earlier EEG/MEG studies indicating that Fmθ during mental calculation is generated in the dorsal anterior cingulate and adjacent medial prefrontal cortex. Mental subtraction was also associated with gamma event-related synchronization, as an index of activation, in right parietal regions subserving basic numerical processing and number-based spatial attention. Gamma event-related desynchronization appeared in the right lateral prefrontal cortex, likely representing a mechanism to interrupt neural activity that can interfere with the ongoing cognitive task.
雑誌名	Frontiers in human neuroscience
巻	8
号	406
ページ	1 - 10
発行年	2014-06-11
ISSN	1662-5161
著者版フラグ	publisher