Vestibular cortex is the portion of the cerebrum which responds to input from the vestibular system. Vestibular cortex is the portion of the cerebrum which responds to input from the vestibular system. The location is not well defined, but some research indicates a right hemisphere dominance. Lesions of the vestibular nucleus impair function. The 'temporo-peri-Sylvian vestibular cortex' (TPSVC) has been proposed as an analog to parietoinsular vestibular cortex found in monkeys.