This study is a controlled, open-label biomedical research project in cognitive neuroscience designed to examine the results (postural stability, error rates, and spatiotemporal parameters of eye movements and head movements) of three tests assessing visuospatial functions (active object search, simple exploration, and a control condition with fixation on a stationary point) in two groups of subjects:
* a group of patients with a history of falls
* a control group of patients matched for age (±5 years) and sex who had not fallen recently.