O impacto da agressividade e do consumo de substâncias psicoativas em indivíduos com traços de personalidade borderline

Abstract

Aggression, psychoactive substance use, and borderline personality traits are relevant variables due to their association with mental health problems, violence, and difficulties in social integration. The main objective of this study was to understand how the high or low presence of borderline traits is associated with aggression and psychoactive substance use. An online questionnaire was used, including the Sociodemographic Questionnaire, Buss & Perry Aggression Questionnaire (QA), Borderline Symptom List-23 (BSL-23), Social Desirability Scale (EDS-20), and Alcohol, Smoking, and Substance Involvement Screening Test (ASSIST), with 390 participants. The results indicated significantly positive associations between aggression and substance use, with alcohol being the strongest predictor. In addition, high borderline personality traits predicted both aggression and psychoactive substance use, with differences between the sexes, with greater aggression being observed in men. Individuals with high borderline personality traits also showed higher consumption and aggression, reinforcing the role of borderline personality in understanding these behaviors. These results highlight the importance of prevention and intervention strategies targeting at risk populations, considering emotional and behavioral factors.

Date of Award	23 Jan 2026
Original language	Portuguese
Awarding Institution	Universidade Católica Portuguesa
Supervisor	Andreia Azeredo (Supervisor)