Lesions of the posterior insular cortex (IC) in patients with tilts of subjective visual vertical (SVV) should undergo intensive vestibular rehabilitation programs.
Why this matters
The tilt of the perceived SVV is a sensitive and frequent clinical manifestation of vestibular tone imbalance. Unilateral lesions involving the peripheral vestibular end organ or pathways from the vestibular nuclei are the causes of vestibular tone imbalance.
Although cerebellar lesion locations have been identified that affect vestibular compensation, there is no data on cortical lesion location as a predictor of compensation from tilt of SVV.