Presentation 2007/6/21
An MEG analysis on arithmetic N400 effects
Kosei DEMURA, Masao OHMI,
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Abstract(in English) The N400 effect is well known that semantic violations elicit a negative potential that peaks approximately 400ms after stimulation onset in EEG studies, and it is also elicited by arithmetic incongruent equations using EEG. The research, however, the source location of the N400 effect was not clear because of EEG's ability. In this study, the source location of the N400 effect during incongruent multiplication problems was examined using a 160-channel whole-head MEG system by Eagle Technology Inc., Japan. Results from 10 participants' data indicate that the N400-like effect was observed between 370ms and 448ms, and equivalent current dipoles (ECD) for N400m were mainly localized to the left superior temporal region.
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Keyword(in English) Arithmetic / N400 effects / MEG
Paper # HIP2007-35
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Committee HIP
Conference Date 2007/6/21(1days)
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Language JPN
Title (in Japanese) (See Japanese page)
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Title (in English) An MEG analysis on arithmetic N400 effects
Sub Title (in English)
Keyword(1) Arithmetic
Keyword(2) N400 effects
Keyword(3) MEG
1st Author's Name Kosei DEMURA
1st Author's Affiliation College of Engineering, Kanazawa Institute of Technology()
2nd Author's Name Masao OHMI
2nd Author's Affiliation College of Informatics and Human Communication, Kanazawa Institute of Technology
Date 2007/6/21
Paper # HIP2007-35
Volume (vol) vol.107
Number (no) 117
Page pp.pp.-
#Pages 4
Date of Issue