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两年后,大脑功能的发育变化与类似成的社交媒体使用有关
Jessica S Flannery1, Kaitlyn Burnell1, Seh-Joo Kwon1
1Department of Psychology & Neuroscience, University of North Carolina at Chapel Hill, 235 E. Cameron Avenue, Chapel Hill, NC 27599-3270, USA.
Social cognitive and affective neuroscience
|February 9, 2024
概括
青春期中大脑对社会反的反应下降与青少年的成性社交媒体使用 (ASMU) 有关. 这一途径与女孩抑郁症的增加有关,突出了发育风险.
科学领域:
- 神经科学是一个神经科学.
- 发展心理学 发展心理学
- 青少年健康 青少年健康
背景情况:
- 类似成的社交媒体使用 (ASMU) 在青少年中很普遍,与抑郁症等负面健康结果相关.
- 了解ASMU背后的神经机制对于开发有针对性的干预至关重要.
- 青春期是大脑发育的关键时期,特别是在社会奖励回路中.
研究的目的:
- 调查与ASMU相关的神经社会反处理的发展轨迹.
- 检查青春期大脑反应能力的变化如何影响ASMU和抑郁症状.
- 探索神经发育,ASMU和抑郁症之间的关系中的性别差异.
主要方法:
- 长度研究涉及103名青少年 (6至11年级) 进行1-3次fMRI扫描.
- 利用社会激励延迟任务来测量大脑对积极社会反的响应能力.
- 在青春期晚期 (10-11年级) 通过自我报告评估ASMU和抑郁症状.
主要成果:
- 在青春期内,腹部中部前额叶皮层,中部前额叶皮层,后侧环状皮层和右下额叶回环中的大脑响应性降低与更高的ASMU有关.
- 大脑响应能力的青春期下降预测ASMU的增加.
- 增加的ASMU与青少年女孩的更高的抑郁症状有关,但不是男孩,由神经反应能力的变化介导.
结论:
- 青春期中神经对积极社会反的反应能力的发育性下降可能是ASMU的危险因素.
- 从神经发育到ASMU和随后的抑郁症状的途径似乎是性别特异性的,特别影响了青少年女孩.
- 早期的高反应性,其次是青春期社会反处理能力的下降,可能是ASMU风险的关键指标.
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