A new method for quantifying EEG event-related desynchronization: Amplitude envelope analysis

被引：101

作者：

Clochon, P

Fontbonne, JM

Lebrun, N

Etevenon, P

机构：

[1] Laboratoire de Cartographie EEG, U-320 INSERM, CHU Côte de Nacre

来源：

ELECTROENCEPHALOGRAPHY AND CLINICAL NEUROPHYSIOLOGY | 1996年 / 98卷 / 02期

关键词：

amplitude modulation; EEG; event-related desynchronization (ERD); Fisher test; evoked events; functional brain imaging;

D O I：

10.1016/0013-4694(95)00192-1

中图分类号：

R318 [生物医学工程];

学科分类号：

0831 ;

摘要：

Amplitude modulation (AM) analysis defines precisely the EEG signal envelope changes at sampling frequency. Here we demonstrate mathematically that event-related desynchronization (ERD) corresponds to the integration of AM-EEG. We applied this new approach to a group of 12 healthy human volunteers hearing repeated auditory stimuli and statistically compared the results from ERD to those from AM-EEG. The results indicate that AM-EEG characterized more precisely a specific evoked EEG cortical activation event and may be a powerful method for studying the time-course of functional dynamic brain EEG mapping with improved time resolution.

引用

页码：126 / 129

页数：4

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