Motor, somatosensory and auditory cortex localization by fMRI and MEG
作者:
Christoph Stippich,
Peter Freitag,
Jan Kassubek,
Peter Sörös,
Kyosuke Kamada,
Helmut Kober,
Klaus Scheffler,
Rüdiger Hopfengärtner,
Deniz Bilecen,
Ernst-W Radü,
Jürgen-B Vieth,
期刊:
NeuroReport
(OVID Available online 1998)
卷期:
Volume 9,
issue 9
页码: 1953-1957
ISSN:0959-4965
年代: 1998
出版商: OVID
关键词: Auditory;Brain;fMRI;Functional imaging;Human;MEG;Motor;Somatosensory
数据来源: OVID
摘要:
FUNCTIONAL magnetic resonance imaging (fMRI) and magnetoencephalography (MEG) were performed in six subjects during self-paced finger movement performance, tactile somatosensory stimulation and binaural auditory stimulation using identical stimulation paradigms. Both functional imaging modalities localized brain activity in adjacent areas of anatomically correct cortex. The mean distances measured between fMRI activity and the corresponding MEG dipoles were 10.1 mm (motor), 10.7 mm (somatosensory), 13.5 mm (auditory right hemisphere) and 14.3 mm (auditory left hemisphere). The distances found may reflect the correlation between electrophysiological and hemodynamic responses due to the different underlying substrates of neurophysiology measured by fMRI and MEG: BOLD contrastvsneuronal biomagnetic activity.
点击下载:
PDF
(790KB)
返 回