Mr. Dean says the head movement directly impacts the vestibular system, causing the complete balance control scheme to work and adapt.

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This wouldn't be able to replicate the function of the vestibular system, but it could act like a pacemaker for people who have attacks that make the vestibular system go haywire, like sufferers of Meniere's disease.

FORBES: Magazine Article

He successfully implanted his device in normal rhesus monkeys without disturbing their hearing or sense of balance, and he was able to spark the vestibular system so that the monkeys' eyes moved as if they were spinning.

FORBES: Magazine Article