视听刺激过程中脑电相位同步与信息流动

2010 3rd International Symposium on Applied Sciences in Biomedical and Communication Technologies (ISABEL 2010) Pub Date : 2010-11-01 DOI:10.1109/ISABEL.2010.5702888

M. Teplan, M. Paluš, M. Vejmelka

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引用次数: 0

摘要

研究了在视听刺激下记录的人脑电图数据的相位同步性和方向性。脑电图数据来自6名健康志愿者，他们反复接受20分钟的刺激，包括4和17赫兹的稳定刺激间隔。与非刺激条件相比，整个大脑皮层在刺激过程中，脑电波的携动和相同步都显著增加。得到了夹带与相位同步的正相关关系。方向性分析表明，应用的方法可以估计信息从视觉处理中心流向额叶皮质位置的方向。

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EEG phase synchronization and information flow during audio-visual stimulation

Phase synchronization and directionality of human EEG data recorded under influence of audio-visual stimulation were investigated. EEG data came from 6 healthy volunteers repeatedly exposed to 20 min stimulation that comprised intervals with steady stimulation at 4 and 17 Hz. Entrainment of the brain waves and phase synchronization both significantly increased during the stimulation in comparison to nonstimulating conditions accross the whole cortex. Positive correlation of entrainment and phase synchronization was obtained. Directionality analysis suggests that applied methods may estimate direction of information flow from visual processing centers towards frontal cortex locations.

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来源期刊

2010 3rd International Symposium on Applied Sciences in Biomedical and Communication Technologies (ISABEL 2010)

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