Here is MW VSS subject

The following tracking examines the Vestibular-Ocular Reflex (VOR). The subject maintains a stationary torso on the chair while fixating on the target at the centre of the monitor. The subject then rotates their head while continuing to fixate on the target. The head is rotated to each edge of the monitor, maintaining a distance of 50cm

Both control subjects had no problems fixating and I have not included the results here as they are very similar to the initial COR