Dr. Nassim Tabri

Biography

Nassim Tabri is an Associate Professor at Carleton University in the Department of Psychology and directs the Mental Health Addictions Laboratory. His research primarily explores the engagement of individuals in behavior that jeopardizes their health within group contexts, focusing on how psychological well-being and intergroup behavior are shaped. His work centers around transdiagnostic factors—such as overvalued ideation, perfectionism, and impulsivity—that cross traditional diagnostic boundaries. Through experimental studies, longitudinal designs, and daily experience-sampling methods, Tabri aims to uncover the processes that sustain behaviors like disordered eating and gambling. Additionally, he investigates the mental health implications of group membership, drawing from social identity theory to assess how experiences related to belonging and feeling marginalized can affect well-being. Currently, he is developing a research construct termed collective anti-mattering, which captures the belief that one’s group matters less than outgroups in society. Through his research, Tabri contributes to understanding the influences of perception on emotions, political attitudes, and mental health outcomes.

Research Interests

Experience