Sviderskaia N E, Korol'kova T A
Zh Vyssh Nerv Deiat Im I P Pavlova. 1994 Jul-Oct;44(4-5):640-9.
Within-pair similarity of topographic maps of the cortical electrical activity was studied in 11 monozygotic pairs of twins (MZ) and 20 genetically unrelated persons (UP) during rest and solving four mental tasks. During rest similarity of topographic maps higher in MZ in comparison with UP. We showed that no specific frequency band influenced formation of high similarity between MZ maps. The maximal similarity between MZ maps was seen in the anterior zones of the left hemisphere and in parieto-temporal areas of the right hemisphere. Differences between MZ and UP maps were revealed both in the anterior areas of the left hemisphere and parieto-temporal areas of the right hemisphere, but they were most pronounced in the right hemisphere. The data obtained lead to the conclusion that genetic factor influences not only the separate EEG components, but the system organization of the cortical processes. This was confirmed by the results of topographic similarity analysis carried out for various tasks, i.e. similarity coefficients attained the level of significance only for the right-hemispheric tasks (simultaneous analysis of non-verbal material).
在11对同卵双胞胎（MZ）和20名无血缘关系的个体（UP）休息及完成四项心理任务期间，研究了皮质电活动地形图的配对内相似性。休息时，MZ地形图的相似性高于UP。我们发现，没有特定频段影响MZ地形图之间高相似性的形成。MZ地形图之间的最大相似性出现在左半球的前部区域和右半球的顶颞区域。MZ和UP地形图之间的差异在左半球的前部区域和右半球的顶颞区域均有体现，但在右半球最为明显。所获数据得出结论，遗传因素不仅影响脑电图的各个成分，还影响皮质过程的系统组织。对各种任务进行的地形图相似性分析结果证实了这一点，即相似系数仅在右半球任务（非语言材料的同步分析）中达到显著水平。
