Study Status: Enrolling by invitation
Recruit Status: Enrolling by invitation
Study Type: Observational
Official Title: Diagnostic Accuracy of the Vibration Induced Nystagmus Test in Room Light.
Brief Summary: The purpose of this study is to explore the diagnostic values associated with both a positive and negative Skull Vibration Induced Nystagmus Test (SVINT) performed in room light (with fixation). The hypotheses include: 1. A positive room light SVINT will be identified in individuals with moderate to severe vestibular asymmetries. 2. A positive room light SVINT will be present when 10 beats or more (counted over 10 seconds) of nystagmus are found with fixation blocked.