A Randomized Controlled Trial of Combined Subthreshold Depression in Older Adults With Mild Cognitive Impairment Participating in Online Art Games

The presence of subthreshold depression accelerates quality of life decline and cognitive impairment in older adults with mild cognitive impairment, increasing the rate of dementia conversion, while the continuous decline in cognitive function, in turn, accelerates the deterioration of depression. Art therapy is one of the effective non-pharmacological interventions widely used in dementia and psychological care. In order to enrich the interest of the study and increase the subjects\' motivation to participate, it is considered that breaking away from the traditional art intervention model by embedding gamification elements and designing online video games may better help to improve cognitive function and physical and mental health of older adults. This project constructs an intervention program of online art games for older adults with mild cognitive impairment combined with subthreshold depression based on self-determination theory, and conducts a three-month randomized controlled trial to assess the improvement of online art games on participants\' physical and mental health.