Teen Brain Online II: Understanding How Social Media Affects the Teen Brain

There is no assignment to conditions. All participants will receive the same intervention, which is the completion of two experimental tasks that present participants with opportunities to receive feedback from peers. Phase 1 focuses on task development with 10 participants, where they will complete a screening call, a 60 virtual screening call with questionnaires and preparation for the fMRI tasks (TBO and CHAT) described below. They will then complete the Teen Brain Online (TBO) and Chatroom Interact (CHATI) tasks during fMRI/eye-tracking at the BRIDGE MRI Center in a counterbalanced order (with half of the participants randomly assigned to complete the CHAT task first, and the other half randomly assigned to complete the TBO task first), approximately one month following the screening visit. Phase 1 participants will not have EMA text message surveys or a 3 month follow up visit. During Phase 2 (\~months 9-24), the final version of TBO will be tested in 50 youth with elevated depressive symptoms. Following a phone screen, youth will complete a virtual screening visit that includes questionnaires and preparation for the fMRI tasks. They will then complete the Teen Brain Online (TBO) and Chatroom Interact (CHATI) tasks during fMRI/eye-tracking at the BRIDGE MRI Center in a counterbalanced order, approximately one month following the screening visit, as well as measures of depressive symptoms at three months (Mood and Feelings Questionnaire (MFQ). Before the MRI visit, youth are asked to submit 24 selfies, a profile picture, and a handle for a study specific social media site All participants will get a chance to view the site before their MRI scan to view and interact with posts, through likes and comments systems. During the TBO task within the scanner, the participants will be shown their own posts and the posts of other teens in the study alongside each other. They will also be shown the number of likes, comments, and views on each post. The investigators will assess their neural reactions to the posts, and also use eye tracking to see what they are paying attention to on screen. The Investigators will also assess the teen's reactions to 3 of their posts comment's sections. In the inter-block intervals, the investigators will also show them trials with 2 peer photos to control for the effect of seeing images of peers vs themselves. The placement of participant and peer photos are random (left vs right), and no photos will be repeated. For the CHAT-I Task, participants will view photos and biographies for same-age youth and choose the top five that they would like to interact with from other research sites. They will have their own photo taken (via screenshot) and provide a biography for their own profile. They will be matched with two of the five available peers, and will interact with them in the scan. During the CHAT-I task in the scanner, the participant and peers take turns selecting who they would rather talk to about a series of topics (e.g., music, movies). The first block is a neutral condition in which a dot appears over the picture of one person, and the participant presses a button indicating on which side the dot appeared. The chat game then proceeds in three blocks, where the participant and the peers will take turns selecting who they would like to talk to. Teen participants will also complete a 16-day EMA protocol (two school weeks, three weekends) using Web-DataExpress. This approach will allow us to obtain nuanced information about SM experiences beyond frequency/duration of use. Following our standard procedures, they will be randomly sampled within three blocks of time (morning, after school, evening) for a total of 48 surveys. Youth can "snooze" each prompt for up to one hour, and the after-school prompt allows youth to report SM use during the school day. Certain information is withheld to protect the scientific integrity of the study design.