The role of affective control, strategy repertoire and subjective emotion regulation success in developmental internalising psychopathology.

Adolescence poses significant challenges for emotion regulation (ER) and is thus a critical phase in the emergence of various mental disorders, specifically internalising disorders such as anxiety and depression. Affective control, defined as the application of cognitive control in affective contexts, is crucial for effective ER. However, the relationship between ER and affective control is unclear. This study examined the predictive role of ER strategies and difficulties in affective control, measured as the congruency effect and error rate on an Emotional Stroop task (EST), in a sample of adolescents and young adults (aged 14-21, M = 17.28, 22% male). It was hypothesised that participants with internalising disorders would show higher congruency effects and error rates on the EST than healthy controls after a psychosocial stress induction, indicating lower affective control. Surprisingly, our findings revealed no significant differences in these measures between the groups. However, higher depression scores were associated with increased EST errors. While ER strategies and difficulties did not predict affective control, exploratory analyses unveiled associations between depression scores and ER strategy repertoire, perceived ER success and the ER strategy Acceptance. These findings underscore the importance of implicit ER facets, particularly perceived ER success and flexibility to change between applied strategies for adolescents and young adults with elevated depressive symptoms.