Department of Psychology, University of Amsterdam, Amsterdam, Netherlands.
Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden.
Sci Adv. 2024 Oct 25;10(43):eadp8775. doi: 10.1126/sciadv.adp8775. Epub 2024 Oct 23.
While it is often argued that continuous exposure to social feedback is specifically challenging for the hypersensitive developing brain, empirical evidence is lacking. Across three studies, we reveal the developmental differences and computational mechanisms that underlie the social media engagement and feedback processing of adolescents and adults. First, using a reinforcement learning model on a large Instagram trace dataset ( = 16,613, 1.6+ million posts), we show that adolescents are more sensitive to social feedback than adults. Second, in an experimental study ( = 194), we show that adolescents' mood is affected more strongly by a reduction in likes than adults. Last, in a neuroimaging study ( = 96), we show that social media feedback sensitivity is related to individual differences in subcortical-limbic brain volumes of emerging adults. Together, these findings highlight the need for digital competence programs to help youth manage the constant feedback they encounter on social media platforms.
虽然人们常说，持续接触社会反馈对敏感的发育中的大脑具有特别的挑战性，但实证证据却很缺乏。通过三项研究，我们揭示了青少年和成年人参与社交媒体和处理反馈的发展差异和计算机制。首先，我们使用强化学习模型对一个大型 Instagram 跟踪数据集（=16613，超过 160 万条帖子）进行分析，结果表明青少年比成年人对社会反馈更敏感。其次，在一项实验研究（=194）中，我们发现青少年的情绪比成年人更容易受到点赞减少的影响。最后，在一项神经影像学研究（=96）中，我们发现社交媒体反馈敏感度与新兴成年人的皮质下边缘脑区体积的个体差异有关。总之，这些发现强调了需要有数字能力培养计划来帮助年轻人管理他们在社交媒体平台上不断收到的反馈。
