根据时间-频率的分布在表示人类发生颞叶癫痫时皮质电图(Electrocorticograms-ECoG′s)的非稳定性方面的功效,估计了三种时间一频率分布法。我们将一种新的指数分布法的结果与谱图分析法和Wigner分布法的结果进行了比较。其结果表明,指数分布在分辨率方面比谱图法有明显的改进,并显著减小了Wigner分布中的截项。我们把从一个癫痫记录的不同阶段得到的ECoG′s的指数分布显示结 Three time-frequency distributions were estimated based on the efficacy of the time-frequency distribution in terms of the instability of Electrocorticograms-ECoG’s in human-induced temporal lobe epilepsy. We compare the results of a new exponential distribution with the results of spectral analysis and Wigner distribution. The results show that the exponential distribution is significantly improved over the spectrogram in terms of resolution and significantly reduces the cut-off in the Wigner distribution. We show the exponential distribution of ECoG’s obtained from the different stages of one epilepsy record