Instagram 上的同伴影响：对青少年和青年期大脑和行为的影响。
Peer Influence Via Instagram: Effects on Brain and Behavior in Adolescence and Young Adulthood.
机构信息
Temple University.
University of California, Los Angeles.
出版信息
Child Dev. 2018 Jan;89(1):37-47. doi: 10.1111/cdev.12838. Epub 2017 Jun 14.
Abstract
Mobile social media often feature the ability to "Like" content posted by others. This study examined the effect of Likes on youths' neural and behavioral responses to photographs. High school and college students (N = 61, ages 13-21) viewed theirs and others' Instagram photographs while undergoing functional Magnetic Resonance Imaging (fMRI). Participants more often Liked photographs that appeared to have received many (vs. few) Likes. Popular photographs elicited greater activity in multiple brain regions, including the nucleus accumbens (NAcc), a hub of the brain's reward circuitry. NAcc responsivity increased with age for high school but not college students. When viewing images depicting risk-taking (vs. nonrisky photographs), high school students, but not college students, showed decreased activation of neural regions implicated in cognitive control.
摘要
移动社交媒体通常具有“点赞”他人发布内容的功能。本研究考察了点赞对青少年对照片的神经和行为反应的影响。高中生和大学生（N=61，年龄 13-21 岁）在接受功能磁共振成像（fMRI）的同时观看了自己和他人的 Instagram 照片。参与者更经常点赞那些看起来收到很多（而不是很少）赞的照片。受欢迎的照片会引起大脑多个区域的活动，包括伏隔核（NAcc），这是大脑奖励回路的一个枢纽。对于高中生来说，NAcc 的反应性随着年龄的增长而增加，但对于大学生来说则没有。当观看冒险（与非冒险照片）的图像时，高中生而不是大学生，表现出与认知控制相关的神经区域的激活减少。
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