Purpose
Assess angular vestibulo-ocular reflex (aVOR) contributions to gaze stability during high frequency and velocity head rotation. The GST minimizes contributions from vestibular catch up saccades or preprogrammed saccades by randomly displaying a visual optotype for a brief period (75 ms) during active head movement, making the task unpredictable in timing and direction. GST uses a fixed optotype size to provide a quantifiable behavioral measure of aVOR function by direction and head movement velocity.
Area of Assessment
VestibularVision & Perception
Assessment Type
Performance MeasureAdministration Mode
ComputerCost
Not FreeCost Description
Information regarding cost can be found at Resources on BalanceDiagnosis/Conditions
- Brain Injury Recovery
- Multiple Sclerosis
- Vestibular Disorders