Nassim Tabri
Associate Professor
- PhD (Concordia)
- Email Nassim Tabri
- 613-520-2600 ext 1727
Research Interests:
I am the Director of the Mental Health and Addictions Laboratory in which we examine why people engage in behaviours that harm their health and how group contexts shape psychological well-being and intergroup behaviour.
One line of research focuses on transdiagnostic factors鈥攑sychological processes like overvalued ideation, perfectionism, and impulsivity鈥攖hat cut across traditional diagnostic boundaries. Using experimental studies, longitudinal designs, and daily experience-sampling methods, my research uncovers how these processes work together to sustain behaviours such as disordered eating and gambling. This work contributes to a developing transdiagnostic model of mental health and aims to inform more effective prevention strategies and interventions.
A second line of research examines the mental-health implications of group membership. Drawing on social identity theory and clinical/health psychology, we investigate how group-related experiences鈥攕uch as feeling threatened, marginalized, or emotionally connected to one鈥檚 group鈥攕hape well-being and intergroup behaviour. We are currently developing and researching the construct of collective anti-mattering, which captures the belief that one鈥檚 group does not matter to outgroups or society. Our work examines how this perception influences emotions, political attitudes, coping responses, and mental-health outcomes.
Sample of recent publications:
Coelho, S. G., Tabri, N., Kerman, N., Lefebvre, T., Longpre, S., Williams, R. J., & Kim, H. S. (2024). The perceived causes of problematic substance use, gambling, and other addictive behaviours from the perspective of people with lived experience. International Journal of Mental Health and Addiction, 22, 722-745.
Mistry, N., Elliott, C. M., & Tabri, N. (2025). Development and preliminary validation of a self-report measure of sensory and moral disgust toward perceived unhealthy food. International Journal of Eating Disorders, 58(1), 1592-1605.
Peetz, J., Wohl, M. J. A., & Tabri, N. (2025). When love and money collide: The role of financially focused self-concept in relationships. Personal Relationships, 32(4), e70032.
Tabri, N., Hollingshead, S., & Wohl, M. J. A. (2023). Framing COVID-19 as an existential threat predicts prejudice towards Chinese people via anxious arousal. Social and Personality Psychology Compass, 17(9), e12804.
Tabri, N., Mosco, R., Enouy, S., & Quach, J. (in press). Morning momentary appearance dissatisfaction predicts daily increases in momentary appearance focused self-concept among female university students: An experience sampling study. International Journal of Eating Disorders.
Tabri, N., Stark, S., Balodis, I. M., Price, A., & Wohl, M. J. A. (2024). Financially focused self-concept and disordered gambling are bidirectionally related over time. Addiction Research & Theory, 32(4), 299-311.
Tabri, N., Wood, R. T. A., & Wohl, M. J. A. (2025). Effects of personalized and normative feedback via the Positive Play Quiz on responsible gambling intention, self-efficacy, and behavior: A randomized controlled trial. Addiction, 120(5), 1016-1027.