Electrical source estimation in the human brain associated with auditory evoked magnetic fields using traveling source model

Author

Iwaki, S. ; Ueno, S.

Author_Institution

Dept. of Med. Electron., Tokyo Univ., Japan

Volume

2

fYear

1995

fDate

20-23 Sep 1995

Firstpage

931

Abstract

In neuromagnetism, it is important to estimate electrical sources in the brain from the spatial distributions of magnetoencephalographic (MEG) activities over the head. Here, the authors investigate an estimation of traveling electrical sources which represents the propagation of neural excitations in the human brain. The results show that the sources of auditory N100 and Pa travel in the adjacent area in the auditory cortex. It is suggested that two auditory neural excitations with different latencies propagate same or neighboring neural pathways in the auditory cortex

Keywords

brain models; electroencephalography; hearing; magnetoencephalography; neurophysiology; MEG activities spatial distributions; auditory N100; auditory Pa; auditory cortex; auditory evoked magnetic fields; electrical source estimation; head; human brain; neighboring neural pathways; neural excitations propagation; response latencies; traveling source model; Brain modeling; Conductivity; Current measurement; Equations; Humans; Inverse problems; Magnetic field measurement; Magnetic fields; Magnetic heads; Magnetic shielding;

fLanguage

English

Publisher

ieee

Conference_Titel

Engineering in Medicine and Biology Society, 1995., IEEE 17th Annual Conference

Conference_Location

Montreal, Que.

Print_ISBN

0-7803-2475-7

Type

conf

DOI

10.1109/IEMBS.1995.579353

Filename

579353