[安静觉醒状态下人类左右大脑半球动态皮质脑电图地形图的比较]

[Comparison of dynamic cortical electroencephalotopograms of the human left and right cerebral hemispheres in quiet wakefulness].

作者信息

Iakovenko I A

出版信息

Zh Vyssh Nerv Deiat Im I P Pavlova. 1988 Sep-Oct;38(5):821-8.

Abstract

The differences of spatial-temporal organization of potentials in the left and right hemispheres were studied in healthy subjects at calm alertness by means of comparison of successive electroencephalotopograms (EETGs). In all subjects episodes were found of discordance resemblance coefficient of successive EETGs of the left and right hemispheres--one of the main characteristics of potentials spatial-temporal organization. The episodes of such discordance took as a whole 5--57% of observation time; the duration of each episode could vary from the sampling interval (1/128 s) to the period of resemblance coefficient oscillations.

摘要

通过比较连续脑电图地形图（EETGs），研究了健康受试者在平静警觉状态下左右半球电位时空组织的差异。在所有受试者中，均发现左右半球连续EETGs的相似系数不一致的情况——这是电位时空组织的主要特征之一。这种不一致的情况总体占观察时间的5%至57%；每个不一致情况的持续时间可从采样间隔（1/128秒）到相似系数振荡周期不等。