Figure 4.

Representative vestibular-evoked reflex responses from four subjects rank ordered as a function of increasing severity of spasticity. Cervical vestibular-evoked myogenic potentials (VEMPs) were measured from the sternocleidomastoid muscles. In most subjects, the VEMP responses on the spastic-paretic side (thick line) were larger than on the contralateral side (thin line). As the degree of spasticity increased, so did the asymmetry in response amplitude between the two sides. Adapted from Ref. (248); used with permission of Elsevier.