TY - GEN
T1 - Measurements of EEG evoked by transcranial magnetic stimulation at various stimulus points on the head
AU - Arimatsu, Takeshi
AU - Sato, Hideyuki
AU - Ge, Sheng
AU - Ueno, Shoogo
AU - Iramina, Keiji
PY - 2007
Y1 - 2007
N2 - The combined measurement of EEG and transcranial magnetic stimulation (TMS) is an effective method for investigating the cortical activity and the functional connectivity in the brain. This study focused on the differences in the cortical activity of motor area, posterior parietal cortex and cerebellum when the TMS was applied to each area. The EEG over the whole head was measured, and the EEG topography and current distribution was obtained. In a past study, when motor area was stimulated by TMS, it was observed that the spreading of the EEG response to the contralateral hemisphere in about 20 ms[1]. In order to investigate the relationship between the stimulus point and the evoked potential, the stimulus points were selected at motor area, posterior parietal cortex and cerebellum. We observed the difference in cortical activity of motor area, posterior parietal cortex and cerebellum. When motor area was stimulated, transmitting of the cortical activity from the stimulated hemisphere to the contralateral hemisphere was observed. However, when posterior parietal cortex was stimulated, such transmitting was not observed.
AB - The combined measurement of EEG and transcranial magnetic stimulation (TMS) is an effective method for investigating the cortical activity and the functional connectivity in the brain. This study focused on the differences in the cortical activity of motor area, posterior parietal cortex and cerebellum when the TMS was applied to each area. The EEG over the whole head was measured, and the EEG topography and current distribution was obtained. In a past study, when motor area was stimulated by TMS, it was observed that the spreading of the EEG response to the contralateral hemisphere in about 20 ms[1]. In order to investigate the relationship between the stimulus point and the evoked potential, the stimulus points were selected at motor area, posterior parietal cortex and cerebellum. We observed the difference in cortical activity of motor area, posterior parietal cortex and cerebellum. When motor area was stimulated, transmitting of the cortical activity from the stimulated hemisphere to the contralateral hemisphere was observed. However, when posterior parietal cortex was stimulated, such transmitting was not observed.
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U2 - 10.1109/NFSI-ICFBI.2007.4387768
DO - 10.1109/NFSI-ICFBI.2007.4387768
M3 - Conference contribution
AN - SCOPUS:48049091598
SN - 1424409489
SN - 9781424409488
T3 - Proc. of 2007 Joint Meet. of the 6th Int. Symp. on Noninvasive Functional Source Imaging of the Brain and Heart and the Int. Conf. on Functional Biomedical Imaging, NFSI and ICFBI 2007
SP - 334
EP - 337
BT - Proc. of 2007 Joint Meet. of the 6th Int. Symp. on Noninvasive Functional Source Imaging of the Brain and Heart and the Int. Conf. on Functional Biomedical Imaging, NFSI and ICFBI 2007
T2 - 2007 Joint Meeting of the 6th International Symposium on Noninvasive Functional Source Imaging of the Brain and Heart and the International Conference on Functional Biomedical Imaging, NFSI and ICFBI 2007
Y2 - 12 October 2007 through 14 October 2007
ER -