Kalla, Roger; Muggleton, Neil; Spiegel, Rainer; Bueti, Domenica; Claassen, Jens; Walsh, Vincent; Bronstein, Adolfo
Adaptive motion processing in bilateral vestibular failure.
In: Journal of neurology, neurosurgery, and psychiatry, Vol. 82, No. 11: pp. 1212-1216
Patients with bilateral vestibular failure (BVF) suffer from oscillopsia during head movements. This is secondary to the loss of the vestibulo-ocular reflex which is responsible for stabilising retinal images during head movements of high frequency or velocity. Previous studies documented decreased visual motion sensitivity in such patients at low velocities. The authors now examine motion coherence tasks, which have two advantages: (1) the task is associated with the functions of the middle temporal area; and (2) it affords testing at low and high motion velocities, as relevant for patients with oscillopsia due to BVF.