Isaichev S A, Derevyankin V T, Sokolov E N
M. V. Lomonosov Moscow State University.
Neurosci Behav Physiol. 2001 Jan-Feb;31(1):49-53. doi: 10.1023/a:1026622229972.
This study was designed to locate the neuronal mechanisms of rhythmic activity in the human brain in the alpha-rhythm range using an equivalent dipole model. The experiments approach used here is based on using the "imposed rhythm" phenomenon, whereby a light stimulus flashing with a frequency close to the frequency of the individual alpha rhythm increases its power in the EEG spectrum. The results obtained showed that the activity of the structures generating the alpha rhythm could be differentiated by using a specific photostimulation frequency and were located by constructing a dipole model. Two sources of alpha-rhythm generation were found, located in the thalamic structures of the brain and operating over a narrow-band frequency range with maximum response resonance frequencies of 10.1 and 10.5 Hz.
本研究旨在使用等效偶极子模型定位人类大脑中α节律范围内节律性活动的神经元机制。这里使用的实验方法基于“强加节律”现象，即与个体α节律频率相近的光刺激闪烁会增加其在脑电图频谱中的功率。获得的结果表明，通过使用特定的光刺激频率，可以区分产生α节律的结构的活动，并通过构建偶极子模型来定位这些结构。发现了两个产生α节律的源，位于大脑的丘脑结构中，在窄带频率范围内运行，最大响应共振频率分别为10.1 Hz和10.5 Hz。
