npj Parkinson's Disease
Identifying the neural correlates of voluntary stopping in people with Parkinson’s disease using a Virtual Reality gait paradigm
Abstract Freezing of Gait (FOG) is a disabling feature of Parkinson’s disease (PD). However, the neural mechanisms underlying voluntary stopping impairments remain unclear. This study used a validated Virtual Reality (VR) gait paradigm to investigate the neural correlates of cued voluntary stopping in 15 PD participants with FOG, 10 PD participants without FOG, and 12 healthy controls. PD participants were assessed on and off dopaminergic medication. Blood-oxygen-level-dependent (BOLD) signals during voluntary stop …