The National Institute on Aging (NIA) has awarded a $676,731 federal Project Grant under the Aging Research program (CFDA 93.866) to Arizona State University to identify specific balance deficits that contribute to falls in people with Parkinson's disease (PD). The 5-year project will assess reactive balance, standing balance, and brain activity in 100 individuals with PD at risk of falls. The goal is to determine which aspects of balance are most related to prospectively measured falls, and identify the neural correlates of these balance deficits. This research will inform the development of targeted rehabilitation approaches to reduce falls in this population. The project builds on the broader NIA mission to understand the aging process and address health challenges faced by older adults.