Gersch W, Goddard G V
Science. 1970 Aug 14;169(3946):701-2. doi: 10.1126/science.169.3946.701.
A spectral analysis technique for locating the site of an epileptic focus in the cat brain with the use of multielectrode data, obtained during a generalized seizure, is described. The data, indicating widespread appearance of epileptic activity, does not lend itself to conclusive analysis by conventional means. Three channels of data are examined at a time. One channel is said to drive the other channels if the first channel explains or accounts for the linear relation between the other two over a frequency interval corresponding to the interval of greatest energy concentration. The method of analysis involves computation of the coherence and partial coherence between data from all electrode pairs.
描述了一种利用多电极数据在猫脑中定位癫痫病灶部位的频谱分析技术，该数据是在全身性癫痫发作期间获得的。这些表明癫痫活动广泛出现的数据，不适合用传统方法进行确定性分析。一次检查三个数据通道。如果第一个通道在对应于最大能量集中区间的频率区间内解释或说明了其他两个通道之间的线性关系，则称该通道驱动其他通道。分析方法包括计算所有电极对数据之间的相干性和偏相干性。
