What role does emotional granularity play in adolescent depression and anxiety? A scoping review

Emotional Granularity (EG) refers to the precision with which we describe and differentiate between our emotion states. Emerging evidence suggests that having poorer EG contributes to the onset and maintenance of psychiatric conditions such as depression. The likely mechanisms of action for this being that poor EG means inferior selection and deployment of relevant emotion regulation strategies to combat negative emotional turbulence. The following reviews research evidence for EG in adolescents (aged 14-24), specifically: (i) how it is measured; (ii) its role in anxiety and depression; (iii) its role as a moderator between emotion regulation and anxiety/depression. In addition, we spoke to adolescent stakeholders with a lived experience of anxiety/depression to gain their insights on EG.A literature review revealed 39 qualitative studies, however there were no studies that examined EG in adolescent populations with clinical diagnoses of anxiety or depression. In typical groups we found: (i) the most common method of measuring EG was with ecological momentary assessment methods; (ii) although there was good evidence that lower EG means greater levels of depressive symptomology, there was less evidence for EGs role in anxiety; (iii) inconclusive evidence of EG as a moderator between emotion regulation and depression/anxiety. Adolescent stakeholders had no difficulty understanding the concept of EG and believed it was one that young people would likely engage with. Importantly, they also felt it was a skill that has the potential to be improved. In sum, although EG shows promise as an active ingredient in adolescent depression, there is insufficient evidence for it playing a role in anxiety and inconclusive evidence of it as a moderator between emotion regulation and mental ill-health. Future studies, should both test EG’s role in depressed and anxious adolescent samples and investigate its potential to be trained.