however , errors which patients make when attempting to resolve conflicting visual and somatosensory orientation inputs during upright stance differed markedly in patients with ( 1 ) symmetric or asymmetric reduced vestibular function , ( 2 ) benign paroxysmal positional nystagmus and vertigo , and ( 3 ) a combination of distorted and reduced function .
C0155502
benign paroxysmal positional
C0042571
vertigo