GENERATOR SITES OF SPONTANEOUS MEG ACTIVITY DURING SLEEP
GENERATOR SITES OF SPONTANEOUS MEG ACTIVITY DURING SLEEP
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DOI：
10.1016/0013-4694(92)90166-f
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发表时间：
1992-03-01
期刊：
影响因子：
--
通讯作者：
HARI, R
中科院分区：
文献类型：
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作者：
LU, ST;KAJOLA, M;HARI, R
我们用24通道SQUID梯度仪记录了4名健康成人在夜间自然睡眠时的自发脑磁图（MEG）活动，主要是在头部两侧。所有的睡眠阶段。脑磁图波形与头皮中线同时记录的脑电现象相似，但电、磁信号并不总是一致的。利用电流偶极子模型研究了不同信号源的位置。磁瞬变的等效源，类似于并且经常与电顶波和K复合波以及REM睡眠期间的瞬变相一致，集中在下顶叶中的4 x 4 x 3 cm 3的体积内。对于纺锤波和慢波，没有发现这样的焦点发生器。
We have recorded spontaneous magnetoencephalographic (MEG) activity during overnight natural sleep in 4 healthy adults with a 24-channel SQUID gradiometer, mainly over the sides of the head. All sleep stages were obtained. The MEG wave forms resembled the EEG phenomena recorded simultaneously from the scalp midline, but the electric and magnetic signals did not always coincide. The source locations of different signals were studied by using a current dipole model. The equivalent sources of magnetic transients, resembling and often coinciding with the electric vertex waves and K-complexes, as well as the transients during REM sleep, were concentrated within a volume of 4 x 4 x 3 cm3 in the inferior parietal lobe. For spindles and slow waves, no such focal generators were found.