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| Figure 3: Graphical User Interface (GUI). A complete exercise session is shown for the yaw plane. The clinician may select to view the angle, velocity, or angular acceleration during head rotations in either the yaw or pitch plane. The clinician may also examine rest phases by adjusting the time epoch. A low pass filter cutoff frequency may be specified to further process the data by removing low frequency noise. Two types of exercise signatures are present in the session. The first, adaptation exercises, required the individual to fixate on a visual target during either horizontal or vertical head movement, which are performed for one minute at a time. The substitution exercises required the individual to perform eye-head movements between targets with the goal of seeing clearly during those tasks. |
