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Optimized Individual Mismatch Negativity Source Localization Using a Realistic Head Model and the Talairach Coordinate System

Authors
 Kyoo Seob Ha  ;  Tak Youn  ;  Jun Soo Kwon  ;  Myung Sun Kim  ;  Tae Hyon Ha  ;  Hae-Jeong Park  ;  Seog Weon Kong 
Citation
 BRAIN TOPOGRAPHY, Vol.15(4) : 233-238, 2003 
Journal Title
 BRAIN TOPOGRAPHY 
ISSN
 0896-0267 
Issue Date
2003
MeSH
Acoustic Stimulation ; Adult ; Auditory Perception/physiology ; Brain/physiology* ; Electroencephalography ; Evoked Potentials* ; Female ; Humans ; Magnetic Resonance Imaging ; Male ; Models, Neurological ; Reference Values ; Temporal Lobe/physiology
Keywords
Mismatch negativity ; Dipole source localization ; Talairach coordinates system ; Realistic head model ; Interethnic brain difference
Abstract
The purpose of this study is to evaluate the difference between anatomical locations of mismatch negativity (MMN) generators using a realistic head model and the Talairach coordinate system. This was performed by dipole source analysis by using a high density 128 channel electroencephalography (EEG) acquisition system and the subjects' individual 3D magnetic resonance images (MRI) for the realistic head model, in 24 healthy subjects. For dipole source localization, both the Talairach coordinate system and the individual MRI realistic head models were used and location results were compared. The MMN generators were clearly localized in the superior temporal gyri, especially in Heschl's gyrus, according to each individual's structural MRI. Only 37.5% of subjects showed the same anatomical locations of the MMN generator in both hemispheres in the realistic head model and in Talairach coordinate system, but fifteen subjects (62.5%) didn't. This result indicates that individually registered functional locations are desirable for the precise localization of activated areas in functional imaging studies and that a brain coordinate system is needed which adequately accounts for ethnic differences.
Full Text
http://link.springer.com/article/10.1023/A:1023910108759
DOI
10.1023/A:1023910108759
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Nuclear Medicine (핵의학교실) > 1. Journal Papers
Yonsei Authors
Park, Hae Jeong(박해정) ORCID logo https://orcid.org/0000-0002-4633-0756
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/114238
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