[EEG in vasomotor cephalgias and in tension headache].

The EEG examination of 45 patients with vascular headache and 44 patients with tension headache showed abnormal EEG's in 71% of the cases with migraine and 35% of the cases with tension headache. The examination of morphology and topography of alpha-rhythm and driving-effect during photic stimulation showed statistically significant differences between both groups. Applying specific characteristics in the EEG it is possible to differentiate both types of headache.