Developmental changes in brain function linked with addiction-like social media use two years later.
Developmental changes in brain function linked with addiction-like social media use two years later.
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两年后，大脑功能的发育变化与社交媒体成瘾的使用有关。
DOI：
10.1093/scan/nsae008
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发表时间：
2024
影响因子：
4.2
通讯作者：
Telzer,EvaH
中科院分区：
文献类型：
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作者：
Flannery,JessicaS;Burnell,Kaitlyn;Kwon,Seh-Joo;Jorgensen,NathanA;Prinstein,MitchellJ;Lindquist,KristenA;Telzer,EvaH
成瘾性社交媒体使用（ASMU）在青少年中被广泛报道，并与抑郁症和其他负面健康结果相关。我们的目的是确定与青春期后期更高水平的ASMU相关的神经社会反馈处理的发展轨迹。在纵向设计中，103名青少年在1-3次fMRI扫描（6- 9年级）期间完成了社会激励延迟任务，并在12年后（10- 11年级）完成了第四次ASMU和抑郁症状的自我报告评估。我们评估了ASMU对青春期积极社会反馈的大脑反应性的影响，以及大脑反应性发展，ASMU症状和抑郁症状之间的关系，同时考虑性别影响。研究结果表明，在整个青春期，在腹内侧前额叶皮质，内侧前额叶皮质，后扣带回皮质，右额下回与较高的ASMU症状2年后的反应性下降。显着温和的调解模型表明，这些青春期的大脑反应性下降与增加ASMU症状，其中，青春期女孩（但不是男孩），反过来又与抑郁症状增加。结果表明，青春期开始前对积极社会反馈的初始高反应性，以及整个发育过程中这种反应的降低，可能是青春期后期ASMU的危险因素。
Addiction-like social media use (ASMU) is widely reported among adolescents and is associated with depression and other negative health outcomes. We aimed to identify developmental trajectories of neural social feedback processing that are linked to higher levels of ASMU in later adolescence. Within a longitudinal design, 103 adolescents completed a social incentive delay task during 1–3 fMRI scans (6–9th grade), and a 4th self-report assessment of ASMU and depressive symptoms ∼2 years later (10–11th grade). We assessed ASMU effects on brain responsivity to positive social feedback across puberty and relationships between brain responsivity development, ASMU symptoms, and depressive symptoms while considering gender effects. Findings demonstrate decreasing responsivity, across puberty, in the ventral media prefrontal cortex, medial prefrontal cortex, posterior cingulate cortex, and right inferior frontal gyrus associated with higher ASMU symptoms over 2 years later. Significant moderated mediation models suggest that these pubertal decreases in brain responsivity are associated with increased ASMU symptoms which, among adolescent girls (but not boys), is in turn associated with increased depressive symptoms. Results suggest initial hyperresponsivity to positive social feedback, before puberty onset, and decreases in this response across development, may be risk factors for ASMU in later adolescence.