オザキ　イサム   Ozaki Isamu   尾﨑　勇    所属   東邦大学  医学部 医学科    職種   研究員（寄付講座）
論文種別	原著
言語種別	英語
査読の有無	査読あり
表題	Dynamic anterolateral movement of N100m dipoles in evoked magnetic field reflects activation of isofrequency bands through horizontal fibers in human auditory cortex
掲載誌名	正式名：NEUROSCIENCE LETTERS ISSNコード：0304-3940
出版社	ELSEVIER SCI IRELAND LTD
巻・号・頁	329(2),pp.222-226
著者・共著者	Ozaki, I,YC Jin,Y Suzuki,M Matsunaga,Hashimoto, I
発行年月	2002/08
概要	To analyze the temporal changes in localization of an equivalent current dipole (ECD) for the auditory N100m, we recorded auditory evoked magnetic fields (AEFs) to 400 Hz tone pips presented at the right or left ear. Using a single ECD model, the dipole location for the N100m sources was successively calculated from the AEFs obtained from the hemisphere contralateral to the stimulated ear. We found that the location of the N100m current sources moved dynamically in medio-lateral and postero-anterior directions before the N100m peak, This direction was parallel to the surface of the supratemporal cortex. We propose that the dynamic movement of the N100m dipole reflects spread of intracortical activation through horizontal fibers of pyramidal neurons in the auditory cortex, forming the isofrequency bands in humans. (C) 2002 Published by Elsevier Science Ireland Ltd.
DOI	10.1016/S0304-3940(02)00646-8
PMID	12165417