Miller Jack, Mills Kathryn L, Vuorre Matti, Orben Amy, Przybylski Andrew K
Oxford Internet Institute, University of Oxford, UK.
University of Oregon, USA.
Cortex. 2023 Dec;169:290-308. doi: 10.1016/j.cortex.2023.09.009. Epub 2023 Oct 19.
The idea that the increased ubiquity of digital devices negatively impacts neurodevelopment is as compelling as it is disturbing. This study investigated this concern by systematically evaluating how different profiles of screen-based engagement related to functional brain organization in late childhood. We studied participants from a large and representative sample of young people participating in the first two years of the ABCD study (ages 9-12 years) to investigate the relations between self-reported use of various digital screen media activity (SMA) and functional brain organization. A series of generalized additive mixed models evaluated how these relationships related to functional outcomes associated with health and cognition. Of principal interest were two hypotheses: First, that functional brain organization (assessed through resting state functional connectivity MRI; rs-fcMRI) is related to digital screen engagement; and second, that children with higher rates of engagement will have functional brain organization profiles related to maladaptive functioning. Results did not support either of these predictions for SMA. Further, exploratory analyses predicting how screen media activity impacted neural trajectories showed no significant impact of SMA on neural maturation over a two-year period.
数字设备日益普及会对神经发育产生负面影响，这一观点既令人信服又令人不安。本研究通过系统评估儿童晚期基于屏幕的参与方式与功能性脑组织结构之间的关系，对这一问题进行了调查。我们从参与青少年大脑认知发展（ABCD）研究头两年的大量具有代表性的年轻人样本中选取参与者（年龄在9至12岁之间），以研究自我报告的各种数字屏幕媒体活动（SMA）的使用情况与功能性脑组织结构之间的关系。一系列广义相加混合模型评估了这些关系与健康和认知相关的功能结果之间的联系。主要关注两个假设：第一，功能性脑组织结构（通过静息态功能连接磁共振成像评估；rs-fcMRI）与数字屏幕参与度有关；第二，参与率较高的儿童将具有与适应不良功能相关的功能性脑组织结构特征。结果不支持关于SMA的这两种预测。此外，预测屏幕媒体活动如何影响神经轨迹的探索性分析表明，在两年时间里，SMA对神经成熟没有显著影响。
