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. 2016 Feb;6(1):61–68. doi: 10.1212/CPJ.0000000000000215

Figure 2. Video-oculographic measurement of the visually enhanced vestibulo-ocular reflex.

Figure 2

Top panel: normal horizontal visually enhanced vestibulo-ocular reflex (VVOR) gain (∼1) recorded using portable rapid video-oculography equipment. Vertical axis represents velocity (degrees/s) and horizontal axis represents time (s). The head rotation stimulus is shown in red and the eye movement response is shown in black. Lower panel: A reduced VVOR gain results in salvos of catch-up saccades during slow sinusoidal head rotation (0.5–1.0 Hz) in the horizontal (yaw) plane.