Peer Influence Via Instagram: Effects on Brain and Behavior in Adolescence and Young Adulthood.

Peer Influence Via Instagram: Effects on Brain and Behavior in Adolescence and Young Adulthood.
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DOI:
10.1111/cdev.12838
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发表时间:
2018-01
期刊:
影响因子:
4.6
通讯作者:
Dapretto M
Dapretto M
中科院分区:
心理学1区
文献类型:
--
作者:
Sherman LE;Greenfield PM;Hernandez LM;Dapretto M

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移动的社交媒体通常具有"喜欢"他人发布的内容的能力。本研究考察了喜欢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)在接受fMRI时查看他们和其他人的Instagram照片。参与者更喜欢那些看起来得到很多(而不是很少)喜欢的照片。受欢迎的照片引起了多个大脑区域的更大活动,包括大脑奖励回路的中枢--丘脑核。在高中生中,延髓核的反应性随年龄的增长而增加,而在大学生中则不随年龄的增长而增加。当观看描绘冒险行为的图像(与非冒险照片相比)时,高中生(而不是大学生)表现出与认知控制有关的神经区域的激活减少。
Mobile social media often feature the ability to “Like” content posted by others. The present 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 fMRI. Participants more often Liked photos that appeared to have received many (vs. few) Likes. Popular photos elicited greater activity in multiple brain regions, including the nucleus accumbens, a hub of the brain’s reward circuitry. Nucleus accumbens responsivity increased with age for high school but not college students. When viewing images depicting risk-taking (vs. non-risky photographs), high school students, but not college students, showed decreased activation of neural regions implicated in cognitive control.
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