Figure 7From: Trigeminal Electrophysiology: a 2 × 2 matrix model for differential diagnosis between temporomandibular disorders and orofacial pain Motor evoked potentials of the trigeminal roots in Temporomandibular Disorder. The figure shows evident symmetry in the motor evoked response of the trigeminal roots through transcranial electrical stimulation in a patient complaining of TMDs.Back to article page