Mental Health (PRISM) project integrates implementation research for scaling up sustainable, evidence-based mental health interventions with research capacity-building activities for East Asia. The mental health implementation research hub, based in Thailand and including China, will focus on reducing the treatment gap and support for community-residing older adults, with a particular focus on elders with Alzheimer’s disease and related dementias in Specific aims are to: (1) empirically test a culturally adapted Getting-To-Outcomes (GTO) implementation support model aimed at enhancing the delivery of an evidence-based physical exercise intervention for narrowing the treatment gap for older persons with behavioral and psychological symptoms of dementia in Thailand; (2) build individual and institutional capacity for the implementation of mental health intervention research in Thailand and China; (3) improve Thai and Chinese policy makers’ capacity for using research for evidence informed decision making; and (4) develop a knowledge base for shared learning among stakeholders within each country and with other countries through NIMH and other regional NIMH hubs.