Middle and long latency peak sources in auditory evoked magnetic fields for tone bursts in humans

被引：34

作者：

Kanno, A

Nakasato, N

Murayama, N

Yoshimoto, T

机构：

[1] Kohnan Hosp, Taihaku Ku, Sendai, Miyagi 9828523, Japan

[2] Kumamoto Univ, Grad Sch Sci & Technol, Kumamoto 8608555, Japan

[3] Tohoku Univ, Sch Med, Dept Neurosurg, Sendai, Miyagi 9808574, Japan

来源：

NEUROSCIENCE LETTERS | 2000年 / 293卷 / 03期

关键词：

magnetoencephalography; auditory evoked response; P50m; N100m; auditory cortex; Heschl's gyrus; planum temporale;

D O I：

10.1016/S0304-3940(00)01525-1

中图分类号：

Q189 [神经科学];

学科分类号：

071006 ;

摘要：

The relative position of the P50m and the N100m sources of the auditory evoked magnetic field remains unclear. Magnetoencephalography was performed in 24 normal subjects. Contralateral P50m to left and right ear stimulus was observed in 21 and 19 hemispheres, respectively. Ipsilateral P50m to left and right ear stimulus was observed in 17 and 16 hemispheres, respectively. N100m was observed in all subjects for all stimuli. Relative position of the equivalent current dipole of the P50m was 1.0 +/- 7.6 (mean +/- SD) mm posterior, 2.0 +/- 5.8 mm inferior and 1.8 +/- 8.0 mm medial to the N100m dipole position considering all observations. We suggest that the P50m and N100m sources are colocated in an extended area of the cortex. (C) 2000 Elsevier Science Ireland Ltd. All rights reserved.

引用

页码：187 / 190

页数：4

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