RT Generic T1 Dataset: When Social Media Hurts: A 9-Month Prospective Study on Self-Blame as a Mediator Between Problematic Social Media Use and Suicidal Ideation in Adolescents. A1 Quintana-Orts, Cirenia Luz A1 Yudes Gómez, Carolina A1 Sánchez Moreno, Víctor A1 Rey-Peña, Lourdes K1 Suicidio - Factores de riesgo K1 Redes sociales en internet K1 Adolescentes - Psicología K1 Inteligencia emocional K1 Madurez afectiva AB The increasing prevalence of problematic social media use (PSMU) has heightened concerns about its adverse impact on internet users’ mental health, specifically, on suicidality. Despite reviews investigating the associations between PSMU, emotion regulation, and suicidality, there is a lack of understanding of the potential role that specific emotion regulation might play. This study aimed to bridge this gap by examining the mediating role of four specific maladaptive cognitive emotion regulation strategies (CERS) (i.e., rumination, self-blame, other-blame, catastrophizing) in the prospective link between PSMU and suicidal ideation in a sample of 517 adolescents (M = 13.41, SD = 1.06). Results showed that PSMU was significantly associated with suicidal ideation nine months after. Maladaptive CERS were negatively associated with both PSMU and suicidal ideation, with the exception of other-blame, that was not significantly related to PSMU. Findings of mediation analyses indicated that solely self-blame mediates the negative and prospective link between PSMU and suicidal ideation. Specifically, those adolescents who present PSMU were found to show higher self-blame that, in turn, contributed to greater suicidal ideation nine months later. These findings reinforce the notion that not only PSMU might be a risk factor for suicide in adolescence, but also that efforts should focus on identifying and helping adolescents reduce self-blame. Implications of this study for the prevention of suicidal ideation associated with PSMU in adolescents are discussed. PB Universidad de Málaga YR 2025 FD 2025 LK https://hdl.handle.net/10630/39918 UL https://hdl.handle.net/10630/39918 LA eng NO Parte del proyecto I+D+i PID2020-117006RB-I00, financiado por MCIN/AEI/10.13039/501100011033 NO Grupo de investigación Applied Positive Lab CTS-1048G-FEDER (Junta de Andalucía) NO Ayuda FPU23/03374, financiada por MICIU/AEI /10.13039/501100011033 y por el FSE+ (V. Sánchez-Moreno) DS RIUMA. Repositorio Institucional de la Universidad de Málaga RD 20 ene 2026