Presentation 2016-03-23
Neural mechanism underlying integration of information in sentence comprehension: An ECoG study
Toshiki Iwabuchi, Masahiro Hirai, Hidenori Yokota, Takeshi Sakurada, Eiju Watanabe, Toshio Inui,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) In the current study, we aimed to investigate the neural mechanism underlying integration of information in sentence comprehension. We measured the brain activity of an epilepsy patient with electrocorticography (ECoG) during a sentence comprehension task. When comparing the normal sentence condition to the anomalous sentence condition, decreasing power in the mu-rhythm (10-13 Hz) was found at a few electrodes positioned around the left central sulcus. In addition, we observed discriminative increases of phase locking value between electrodes during the periods 100-200 ms, 400-600 ms, and 800-1000 ms after the onset of sentence-final element, respectively. These results suggest that, in the comprehension process of action sentences, lexical information was integrated by the synchronization between temporal cortices, motor-related regions, and language-related regions.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) ECoG / sentence comprehension / phase synchronization
Paper # NC2015-103
Date of Issue 2016-03-15 (NC)

Conference Information
Committee MBE / NC
Conference Date 2016/3/22(2days)
Place (in Japanese) (See Japanese page)
Place (in English) Tamagawa University
Topics (in Japanese) (See Japanese page)
Topics (in English)
Chair Tetsuo Kobayashi(Kyoto Univ.) / Toshimichi Saito(Hosei Univ.)
Vice Chair Yutaka Fukuoka(Kogakuin Univ.) / Shigeo Sato(Tohoku Univ.)
Secretary Yutaka Fukuoka(akita noken) / Shigeo Sato(Kogakuin Univ.)
Assistant Takenori Oida(Kyoto Univ.) / Ryota Horie(Shibaura Inst. of Tech.) / Hiroyuki Kanbara(Tokyo Inst. of Tech.) / Hisanao Akima(Tohoku Univ.)

Paper Information
Registration To Technical Committee on ME and Bio Cybernetics / Technical Committee on Neurocomputing
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Neural mechanism underlying integration of information in sentence comprehension: An ECoG study
Sub Title (in English)
Keyword(1) ECoG
Keyword(2) sentence comprehension
Keyword(3) phase synchronization
1st Author's Name Toshiki Iwabuchi
1st Author's Affiliation National Rehabilitation Center for Persons with Disabilities(NRCD)
2nd Author's Name Masahiro Hirai
2nd Author's Affiliation Jichi Medical University(Jichi Medical Univ.)
3rd Author's Name Hidenori Yokota
3rd Author's Affiliation Jichi Medical University(Jichi Medical Univ.)
4th Author's Name Takeshi Sakurada
4th Author's Affiliation Jichi Medical University(Jichi Medical Univ.)
5th Author's Name Eiju Watanabe
5th Author's Affiliation Jichi Medical University(Jichi Medical Univ.)
6th Author's Name Toshio Inui
6th Author's Affiliation Otemon Gakuin University(Otemon Gakuin Univ.)
Date 2016-03-23
Paper # NC2015-103
Volume (vol) vol.115
Number (no) NC-514
Page pp.pp.195-200(NC),
#Pages 6
Date of Issue 2016-03-15 (NC)