Related Data for: Modulation of Instagram Number of Followings by Avoidance in Close Relationships in Young Adults Under a Gene x Environment Perspective

The advent of Social Networking Sites (SNSs) has determined radical changes in human social life, demanding to deepen investigations on the mechanisms underlying socialization processes on online platforms. The knowledge acquired from previous studies on in-person sociability could guide researchers to consider both environmental and genetic features as candidates of the online socialization. In the current research, we explored the impact of adult attachment's quality and the genetic properties of the Serotonin Transporter Gene (5-HTTLPR) on Instagram social behavior. Experiences in Close Relationships-Revised questionnaire was adopted to assess 57 Instagram users' attachment pattern in close relationship with their partner. Genotypes from the -HTTLPR/rs25531 region were extracted from the users' buccal mucosa and analyzed. Details on users' Instagram social behavior were acquired from four indexes: number of posts, number of followed users ("followings") and number followers, and the Social Desirability Index calculated from the followers to followings ratio. Although no interactions between rs25531 and ECR-R dimensions were found, results suggested an association between avoidance in close relationships and Instagram number of followings. Specifically, post-hoc analyses revealed that adult avoidance from the partner predicts the Instagram number of followings with good evidence. Moreover, users who reported high avoidance levels displayed fewer followings than users who reported low levels of avoidance. This research provides a window into the psychobiological understanding of online socialization on SNSs as Instagram.

社交网站（Social Networking Sites, SNSs）的出现彻底重塑了人类的社会生活，这使得学界亟需深化对在线平台社交互动底层机制的探究。过往针对面对面社交的研究成果，可帮助研究者将环境与遗传特征均视为在线社交的潜在影响因素。本研究探究了成人依恋质量与血清素转运体基因（Serotonin Transporter Gene, 5-HTTLPR）的遗传特性对Instagram社交行为的影响。本研究采用《亲密关系经历修订版（Experiences in Close Relationships-Revised, ECR-R）》问卷，对57名Instagram用户的亲密伴侣依恋模式进行评估；研究人员从受试者的口腔黏膜样本中提取了5-HTTLPR/rs25531区域的基因型并开展分析。研究通过四项指标获取用户的Instagram社交行为细节：发帖量、关注用户数（“关注数”）、粉丝数，以及由粉丝数与关注数之比计算得出的社会期许指数（Social Desirability Index）。尽管未发现rs25531位点与ECR-R维度间存在交互效应，但研究结果显示，亲密关系中的回避倾向与Instagram的关注数存在关联。具体而言，事后检验分析显示，成人在亲密关系中的回避倾向可显著预测Instagram的关注数，该结论具备充分的统计学证据支持。此外，自我报告回避倾向较高的用户，其Instagram关注数显著低于回避倾向较低的用户。本研究为理解以Instagram为代表的社交网站在线社交的心理生物学机制提供了全新视角。