Figure 6.

Exploratory scan paths of an exemplary patient with spatial neglect (left) and a healthy subject (right) while searching for a (non-existent) target in darkness with their heads fixed. The upper panel shows the patients' exploratory eye movements with no further stimulation; the lower panel is the result under left-sided vestibular stimulation (cold water irrigation). In the condition without stimulation, the neglect patient showed a bias of ocular exploration towards the right and neglect of the left, while symmetrical eye movements were observed under unilateral vestibular stimulation. The healthy subject showed exactly the opposite behavior, i.e. symmetrical search without stimulation and asymmetrical search under vestibular stimulation.⁸⁴