The impact of friends sharing different modalities of alcohol-related social media content on alcohol consumption: A longitudinal examination of changes in content shared by social networks over time

项目摘要/摘要 大学生酗酒与广泛的负面后果有关16、26-28。社会影响力 亲近的同龄人(例如，一个人的社交网络)是大学生饮酒的一个有充分证据的预测因素。一 社会化的形式通过社交媒体发生。在社交媒体上接触与酒精相关的内容的比率更高 媒体与大学生更高的饮酒量和消极的酒精相关后果有关 样本20，21。具体地说，在大学生中，接触与酒精相关的图片和/或文字 在线同伴与6个月后消费的增加密切相关22。然而，这些 研究没有确定他们的社交网络(可能包括在线和面对面)中的亲密同伴 或报告发布的与酒精相关的不同形式的社交媒体内容的频率。近期 研究强调需要了解密切的同伴关系的影响，无论是面对面的(评估 通过传统的社交网络研究)和通过社交媒体在线。还没有研究检验这一点是如何 交集(即面对面的社交网络成员在社交媒体上分享危险内容的质量)或 分享的内容类型如何影响大学生中的问题饮酒。此外，大学生 社交网络随着时间的推移变化很快，甚至在一个学年36-38，84内也会发生重大变化；因此，社交网络 对个人饮酒行为的影响可能正在发生变化。这还有待于在社交媒体中进行研究 内容暴露上下文。这项拟议的研究将是第一次纵向研究如何改变 学生接触到的与酒精相关的社交媒体内容(通过改变以自我为中心的社交网络)是 与观看者饮酒结果的变化有关。具体目标包括：1)如何改变曝光率 与酒精相关的社交媒体内容(通过改变大学生社交网络的构成) 随着时间的推移与大学饮酒有关，2)与酒精相关的内容的形式的影响(图， 视频)由社交网络共享，以及3)社交网络的特性(即，情感亲密度、饮酒伙伴状态 网络成员分享与酒精有关的内容。本研究符合NIAAA的倡议，即 提高我们对大学生饮酒问题相关行为因素的理解 学生(包括未成年人和法定年龄的学生)。总体而言，该奖项将帮助申请者建立 作为一名独立研究员，在终身教职跟踪教师的职位上，以研究计划为重点 通过同龄人和社交媒体产生的社会影响如何与大学生饮酒行为联系在一起。长- 学期目标包括申请未来的奖项，寻求提高学生饮酒者的意识和发展 缓解亲密朋友分享的与酒精有关的社交媒体内容的影响的干预措施 关于酒精结果的。

Project Summary/Abstract College student heavy drinking is related to a wide range of negative consequences16,26-28. The social influence of close peers (i.e., one’s social network) is a well-documented predictor of college student drinking17. One form of socialization occurs through social media. Higher rates of exposure to alcohol-related content on social media is linked to higher alcohol consumption and negative alcohol-related consequences in college student samples20,21. Specifically, among college students, exposure to alcohol-related pictures and/or text shared by online peers was strongly associated with increases in consumption up to 6 months later22. However, these studies did not identify close peers within their social network (which could consist of both online and in-person peers) or report the frequency of different modalities of alcohol-related social media content posted. Recent research highlights the need to understand the influence of close peer relationships, both in-person (assessed via traditional social network research) and online via social media. No studies have examined how this intersection (i.e., the qualities of in-person social network members sharing risky content on social media) or how the type of content shared affects problematic drinking among college students. Moreover, college student social networks vary over time rapidly, even changing substantially within an academic year36-38,84; thus, social influences on individual drinking behavior may be changing. This has yet to be studied within the social media content exposure context. The proposed study would be the first longitudinal examination of how changes in alcohol-related social media content students are exposed to (via changes in egocentric social networks) are associated with changes in viewer alcohol outcomes. The specific aims examine: 1) how changes in exposure to alcohol-related social media content (via changes in the composition of college students’ social networks) are associated with college drinking over time, 2) the effects of modality of alcohol-related content (photo, video) shared by the social network, and 3) qualities (i.e., emotional closeness, drinking buddy status) of social network members sharing alcohol-related content. The present research is in line with NIAAA’s initiatives to improve our understanding of behavioral factors which are associated with problematic drinking among college students (both underage and of legal age). Overall, this award will assist the applicant in establishing themselves as an independent researcher in a tenure-track faculty position with a program of research focused on how social influences via peers and social media are linked to college student drinking behaviors. Long- term goals involve applying for future awards that seek to increase student drinker awareness and develop interventions to buffer the effects of exposure to alcohol-related social media content shared by close friends on alcohol outcomes.