屏幕时间和青春期时间:来自青少年大脑认知发展研究的发现
medRxiv : the preprint server for health sciences
|February 6, 2026
概括
童年后期的屏幕时间较长与更早的青春期发生有关. 这一发现在女孩群体中尤为明显,强调了关于媒体使用的家长指导的必要性.
科学领域:
- 儿科内分泌学 儿科内分泌学
- 发展心理学 发展心理学
- 公共卫生 公共卫生
背景情况:
- 青春期的时间受各种因素的影响,了解屏幕时间等新影响至关重要.
- 青少年的屏幕媒体使用量大幅增加,引发了对潜在健康影响的担忧.
- 青少年大脑认知发展 (ABCD) 研究为研究发育轨迹提供了丰富的数据集.
研究的目的:
- 研究童年后期的屏幕时间与青春期发育时间之间的关联.
- 为了确定更长的屏幕时间是否预测了青春期早期的青春期成熟.
- 为了探索这种协会中潜在的性别差异.
主要方法:
- 从ABCD研究中对10,786名参与者的纵向队列研究.
- 在基线 (平均年龄~9.9岁) 收集的家长报告的屏幕时间数据.
- 在4年的随访期内使用青春期发育量表 (PDS) 评估青春期时间,并对共变量进行统计调整.
主要成果:
- 基线时增加的屏幕时间与1,2年和3年随访时更先进的青春期时间显著相关.
- 屏幕时间和早期青春期之间的关联在女孩中更为明显.
- 屏幕时间很长的参与者比屏幕时间很少的参与者早大约2.5个月达到青春期中期.
结论:
- 童年后期的屏幕时间是早期青春期发展的重要预测因素.
- 这些发现强调了关于青春期前的屏幕媒体消费的家长指导的重要性.
- 进一步的研究可能会探索与屏幕时间和青春期有关的潜在的生物或行为机制.
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