Abstract Fall-related injuries affect the quality of life, healthcare costs, and longevity of millions of individuals with limb loss, post-stroke hemiparesis, incomplete spinal cord injury, multiple sclerosis, and aging-related sensorimotor and physical decline. Current research indicates that there are multiple fall prevention interventions that can reduce the incidence of falls among these populations. They include muscle strengthening, aerobic exercise, virtual reality games, Tai Chi, yoga, and perturbation training among others. None of these interventions by themselves are a single solution as the cause of poor balance and falls is a multifactorial problem. Recent research indicates that intermittent visual occlusions (i.e. restricting vision for brief periods of time) can greatly improve balance training efficacy. Inclusion of intermittent visual occlusions in a balance training task can improve outcomes by four-fold and lead to longer lasting balance improvement. The goals of this project are to: a) test if the effects of intermittent visual occlusions are similar for older and younger subjects, b) determine the neural mechanisms responsible for enhanced balance training from intermittent visual occlusions using mobile brain imaging with high-density EEG, and c) determine if the efficacy of balance training is dependent on timing parameters of intermittent visual occlusions. We will study young and older healthy subjects performing a dynamic balance training task (i.e. beam walking) to test whether intermittent visual occlusions result in sensory reweighting of visual, proprioceptive, and vestibular feedback to the posterior parietal cortex. We will also examine the efficacy of different visual perturbation parameters (timing of occlusion, timing of unrestricted vision before occlusion, and using dimming of light instead of total occlusion). The results will provide information on the neural mechanisms involved in enhanced balance training and point towards which patient populations will most benefit from intermittent visual occlusions added to their balance training. Findings will also determine the best way to deliver visual perturbations to maximize the success of a future multi-task balance training clinical trial. .