Clinical trials

The goal of this clinical trial is to evaluate whether a virtual reality (VR) based social platform can improve mental health and social connection for older adults who receive in-home care. Specifically, the study aims to determine if the VR program reduces loneliness, depressive symptoms, and boredom while increasing social connection and well-being among older adult participants. It also explores whether access to the VR program reduces caregiver burden and depressive symptoms for family caregivers. Researchers will compare an immediate-start group to a waitlist control group to assess whether the VR program improves outcomes compared to standard home care alone. Both groups will eventually receive the intervention. Older adult participants will use a VR headset at home to join group activities three times a week. These sessions include social activities with local peers and live-hosted group activities. A family caregiver or home care professional may be present during sessions if needed for support. Over a 12-week study period, older adult participants will complete three surveys assessing their mood, social connection, and well-being. Family caregivers of participating older adults are also invited to join an optional caregiver substudy. Caregivers who enroll in the substudy will not participate in the VR activities themselves, but will complete three surveys at the same time points over the 12 weeks to share their own well-being and caregiving experiences.

To support optimal behavior in daily life, goals and responses following emotional events should ideally incorporate not only the valence and intensity of prior emotional episodes but also their temporal features, such as the relative duration of positive vs. negative attributes. However, how specific brain regions contribute to the integration of temporal and emotional information and promote goal-directed response remains unknown. The goal of this study is to examine how specific brain regions track both emotional and temporal information of dynamic emotional events to inform other related brain regions to guide goal-oriented and context-appropriate actions. The investigators will scan healthy human participants using functional MRI (fMRI) while they view emotional image sequences and track the associated emotional and temporal (duration) information, and act accordingly. The investigators will employ multivariate patterns analysis and pattern similarity analysis to identify brain regions that represent (can decode) emotion, time, and their combined signals, as well as brain regions that represent the associated action goal. In addition, to infer the causal contributions of these brain regions in forming task-relevant representations (emotion, time, and action goal), the same participants will be recruited to receive transcranial magnetic stimulation (TMS) in these regions.