Global Mental Health: Interdisciplinary challenges for a field in motion.

In recent years, efforts in Global Mental Health (GMH) have evolved alongside critical engagement with the field's claims and interventions. GMH has shifted its agenda and epistemological underpinnings, increased its evidence base, and joined other global policy platforms such as the Sustainable Development Goals. This editorial introduction to a thematic issue traces the recent shifts in the GMH agenda and discusses the changing construct of "mental health" as GMH moves away from a categorical biomedical model toward dimensional and transdiagnostic approaches and embraces digital technologies. We highlight persistent and emerging lines of inquiry and advocate for meaningful interdisciplinary engagement. Taken together, the articles in this special issue of Transcultural Psychiatry provide a snapshot of current interdisciplinary work in GMH that considers the socio-cultural and historical dimensions of mental health important and proposes reflexive development of interventions and implementation strategies.