Marosi E, Harmony T, Becker J, Reyes A, Bernal J, Fernández T, Rodríguez M, Silva J, Guerrero V
National University of Mexico, Enep Iztacala, Neurosciences, Estado de Mexico.
Int J Psychophysiol. 1995 Feb;19(1):23-32. doi: 10.1016/0167-8760(94)00059-n.
The relationship of reading-writing ability and EEG coherences was studied in 84 subjects from two age groups 7.0-8.9 and 9-11.2 years old. All children were divided into three groups according to their performance on a pedagogical test: ped1, normal children; ped2, children with mild problems; ped3, children with reading-writing disability. The following results were obtained: in general, children showed higher coherences in groups with poor performance in the delta, theta and beta bands. In the alpha band, higher coherence values were related to better performance. The exceptions to this general pattern were rare. Group ped2 had higher coherences in delta, theta and alpha bands than ped1 and ped3, in left temporal leads. In older children the same tendency was observed, but group differences in the theta, alpha and beta bands were few. In this age range, the significant group differences were almost all interhemispheric coherences. The discriminant analysis that classified subjects by their coherence values gave very good results, fact that demonstrates, that EEG coherence is a highly sensitive measurement indicating not only the existence of a reading-writing problem, but also the degree of its severity.
对84名年龄在7.0至8.9岁和9至11.2岁两个年龄组的受试者进行了读写能力与脑电图相干性之间关系的研究。所有儿童根据其在一项教学测试中的表现分为三组：ped1，正常儿童；ped2，有轻度问题的儿童；ped3，有读写障碍的儿童。得到了以下结果：总体而言，在δ波、θ波和β波段表现较差的组中，儿童表现出更高的相干性。在α波段，更高的相干值与更好的表现相关。这种一般模式的例外情况很少见。在左侧颞叶导联中，ped2组在δ波、θ波和α波段的相干性高于ped1组和ped3组。在年龄较大的儿童中也观察到了相同的趋势，但在θ波、α波和β波段的组间差异较少。在这个年龄范围内，显著的组间差异几乎都是半球间相干性。通过相干值对受试者进行分类的判别分析给出了非常好的结果，这一事实表明，脑电图相干性是一种高度敏感的测量方法，不仅表明存在读写问题，还表明其严重程度。
