Illustration of smooth pursuit eye movements made by a CTS and a healthy subject.

<p>In the recording section presented, the healthy control (green line) and CTS (red line) subjects aimed to focus on a visual target (black) moving at 40°/s. For better graphical presentation, the recording from the CTS were moved -10 degrees downwards. The CTS subject could poorly maintain for longer periods a stable eye velocity matching the visual target movements.