Educational Neuroimaging Center, Faculty of Biomedical Engineering, Technion, Israel.
Faculty of Education in Science and Technology, Technion, Israel.
Child Psychiatry Hum Dev. 2021 Aug;52(4):681-692. doi: 10.1007/s10578-020-01053-x. Epub 2020 Sep 4.
An adverse relationship between screen exposure time and brain functional/structural connectivity was reported in typically developing children, specifically related to neurobiological correlates of reading ability. As children with reading difficulties (RD) suffer from impairments in reading and executive functions (EF), we sought to determine the association between the ratio of screen time duration to reading time duration and functional connectivity of EF networks to the entire brain in children with RD compared to typical readers (TRs) using resting state data. Screen/reading time ratio was related to reduced reading and EF abilities. A larger screen/reading time ratio was correlated with increased functional connectivity between the salience network and frontal-EF regions in children with RD compared to TRs. We suggest that whereas greater screen/reading time ratio is related to excessive stimulation of the visual processing system in TRs, it may be related to decreased efficiency of the cognitive control system in RDs.
在正常发育的儿童中，已经有研究报道了屏幕暴露时间与大脑功能/结构连接之间的不良关系，尤其是与阅读能力的神经生物学相关因素有关。由于阅读困难（RD）儿童在阅读和执行功能（EF）方面存在障碍，我们试图确定 RD 儿童的屏幕时间与阅读时间的比值与静息状态数据中 EF 网络与整个大脑的功能连接之间的关系，与典型阅读者（TRs）进行比较。屏幕/阅读时间的比值与阅读和执行功能能力的降低有关。与 TRs 相比，RD 儿童的屏幕/阅读时间比值越大，与突显网络和额叶 EF 区域之间的功能连接增加相关。我们认为，在 TRs 中，更大的屏幕/阅读时间比值与视觉处理系统的过度刺激有关，而在 RD 中，它可能与认知控制系统的效率降低有关。
