Medial prefrontal cortex generates frontal midline theta rhythm

被引：371

作者：

Ishii, R

Shinosaki, K

Ukai, S

Inouye, T

Ishihara, T

Yoshimine, T

Hirabuki, N

Asada, H

Kihara, T

Robinson, SE

Takeda, M

机构：

[1] Osaka Univ, Sch Med, Dept Neuropsychiat, Suita, Osaka 5650871, Japan

[2] Osaka Univ, Sch Med, Dept Radiol, Suita, Osaka 5650871, Japan

[3] Osaka Univ, Sch Med, Dept Neurosurg, Suita, Osaka 5650871, Japan

[4] Univ Osaka Prefecture, Dept Earth & Life Sci, Suita, Osaka, Japan

[5] Aloka Co Ltd, Tokyo, Japan

[6] CTF Syst Inc, Port Coquitlam, BC, Canada

来源：

NEUROREPORT | 1999年 / 10卷 / 04期

关键词：

anterior cingulate cortex; attention; brain mapping; calculation; frontal midline theta rhythm; magnetoencephalography; medial prefrontal cortex; SAM; theta wave;

D O I：

10.1097/00001756-199903170-00003

中图分类号：

Q189 [神经科学];

学科分类号：

071006 ;

摘要：

FRONTAL midline theta rhythm (Fm theta) is a distinct theta activity of EEG in the frontal midline area that appears during concentrated performance of mental tasks in normal subjects and reflects focused attentional processing. To tomographically visualize the source current density distributions of Fm theta, we recorded Fm theta by using a 64-channel whole-bead MEG system from four healthy subjects, and applied a new analysis method, synthetic aperture magnetometry (SAM), an adaptive beam forming method. Fm theta was observed in the MEG signals over the bilateral frontal regions. SAM analysis showed bilateral medial prefrontal cortices, including anterior cingulate cortex, as the source of Fm theta. This result suggests that focused attention is mainly related to medial prefrontal cortex. NeuroReport 10:675-679 (C) 1999 Lippincott Williams & Wilkins.

引用

页码：675 / 679

页数：5

共 23 条

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