TNO Human Factors View Institution's Website 1 article published in JoVE Neuroscience Three Dimensional Vestibular Ocular Reflex Testing Using a Six Degrees of Freedom Motion Platform Joyce Dits1, Mark M.J. Houben2, Johannes van der Steen1 1Department of Neuroscience, Erasmus MC, 2TNO Human Factors A method is described to measure three-dimensional vestibulo ocular reflexes (3D VOR) in humans using a six degrees of freedom (6DF) motion simulator. The gain and misalignment of the 3D angular VOR provide a direct measure of the quality of vestibular function. Representative data on healthy subjects are provided