Early cognitive and language skills are linked to resting frontal gamma power across the first 3 years.
Early cognitive and language skills are linked to resting frontal gamma power across the first 3 years.
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DOI：
10.1016/j.bbr.2008.08.049
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发表时间：
2008-12-22
影响因子：
2.7
通讯作者：
Harris, Kenneth D.
中科院分区：
文献类型：
--
作者：
Benasich, April A.;Gou, Zhenkun;Choudhury, Naseem;Harris, Kenneth D.
人类和动物的高频皮质活动与多种高级认知过程有关。这项研究表明，在认知过程中发生的神经元同步的具体变化，在伽马频率范围内出现快速振荡的区别。为了确定高频脑振荡的发展是否与认知能力的发展有关，我们研究了16个月，24个月和36个月大的儿童的静息EEG的功率谱。休息时额叶伽马功率分布的个体差异与所有年龄段的并发语言和认知技能高度相关。伽马功率也与注意力的措施;儿童谁被观察到具有更好的抑制控制和更成熟的注意力转移能力有较高的伽马功率密度函数。我们纳入了一组有语言障碍（FH+）家族史的儿童，因此有较高的语言障碍风险。FH+儿童作为一个组，在额叶区域的γ值始终低于匹配良好的FH-对照组，没有这种家族史（FH-）。我们认为，高频神经同步的出现可能对认知和语言发展至关重要，而有语言障碍风险的儿童可能在这一过程中滞后。
High-frequency cortical activity in humans and animals has been linked to a wide variety of higher cognitive processes. This research suggests that specific changes in neuronal synchrony occur during cognitive processing, distinguished by emergence of fast oscillations in the gamma frequency range. To determine whether the development of high-frequency brain oscillations can be related to the development of cognitive abilities, we studied the power spectra of resting EEG in children 16, 24 and 36 months of age. Individual differences in the distribution of frontal gamma power during rest were highly correlated with concurrent language and cognitive skills at all ages. Gamma power was also associated with attention measures; children who were observed as having better inhibitory control and more mature attention shifting abilities had higher gamma power density functions. We included a group of children with a family history of language impairment (FH+) and thus at higher risk for language disorders. FH+ children, as a group, showed consistently lower gamma over frontal regions than the well-matched FH- controls with no such family history (FH-). We suggest that the emergence of high frequency neural synchrony may be critical for cognitive and linguistic development, and that children at risk for language impairments may lag in this process.
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