Esposito V; Leisman G; Frankenthal Y, "Neuromuscular effects of temporomandibular joint dysfunction", Int J Neurosci 1993 Feb;68(3-4):205-7                    

ABSTRACT: Neurologically intact male and female TMJ dysfunction patients
with or without cervical spine involvement were examined using standard
clinical neurologic testing for balance and coordination. Seventy percent of
the TMJ patients without cervical involvement exhibited positive signs for
balance, coordination, and/or ataxia found in response to having the
patient's mandible stressed by extending it as far as possible
laterally, and also opened (as wide as possible) or closed (biting
down). The performance of patients with cervical involvement was not
significantly different than those without cervical involvement. Further
examination of the relation between the TMJ and auditory, visual,
cerebellar, and coordination mechanisms is therefore indicated.