Byring R F, Haapasalo S, Salmi T
Department of Child Neurology, Children's Hospital, University of Helsinki, Helsinki, Finland.
Clin Neurophysiol. 2004 Nov;115(11):2584-92. doi: 10.1016/j.clinph.2004.05.027.
To find out whether 14-16 year old reading and writing impaired pupils have atypical EEG activation patterns during reading.
EEG correlation indices (EEGCIs), based on the waveform characteristics of two EEG signals, were used as measurers of slow joint activation of cortical regions during reading in pupils with reading and writing impairment.
Reading was associated with high EEGCIs within the right hemisphere in reading and writing impaired pupils. The finding is analogous to the results of an earlier study [Byring, Electroencephalogr. Clin. Neurophysiol. 63 (1986) 1] in boys with spelling disabilities. The activation in the right hemisphere might represent a compensation for a left hemisphere dysfunction in pupils with reading and writing impairment during reading, as suggested by a number of functional neuroimaging studies. This interpretation was corroborated by high EEGCIs especially in those impaired pupils who had a good occupational outcome.
EEGCIs during reading are high within the right hemisphere in pupils with reading and writing impairment.
High EEGCIs within the right hemisphere during reading might be considered neurophysiological markers for reading and writing impairment.
探究14 - 16岁读写障碍学生在阅读过程中是否具有非典型的脑电图激活模式。
基于两种脑电图信号的波形特征，脑电图相关指数（EEGCIs）被用作读写障碍学生阅读时皮质区域缓慢联合激活的测量指标。
读写障碍学生阅读时，右侧半球内的EEGCIs较高。这一发现与早期一项针对拼写障碍男孩的研究[Byring，《脑电图与临床神经生理学》63（1986）1]结果相似。正如一些功能性神经影像学研究所表明的，右侧半球的激活可能代表读写障碍学生在阅读过程中对左半球功能障碍的一种代偿。脑电图相关指数较高，尤其是那些职业结局良好的受损学生，证实了这一解释。
读写障碍学生阅读时，右侧半球内的EEGCIs较高。
阅读时右侧半球内较高的EEGCIs可能被视为读写障碍的神经生理学标志物。
