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  • Title: Functional imaging of headache - first steps in an objective quantitative classification of migraine.
    Author: Sauer S, Schellenberg R, Hofmann HC, Dimpfel W.
    Journal: Eur J Med Res; 1997 Sep 29; 2(9):367-76. PubMed ID: 9300933.
    Abstract:
    A highly sensitive quantitative-topographical EEG was used in order to define first steps in an objective classification of migraine. A 17-channel quantitative EEG was recorded in 30 patients suffering from migraine with or without aura during the painfree interval. These EEG s were compared to EEGs of age related healthy norm groups using a new statistical tool called the Aberration Index. A focal aberration in the area of pain was detected in 26 out of the 30 patients mostly due to an increase of alpha1 EEG power (23 patients). Alpha2 or theta power were also increased in several patients. Furthermore, a decrease in alpha power neighbouring the focus was found in 18 patients and a contralateral reduction of alpha power was seen in 16 patients. No difference was detected between migraine with aura and migraine without aura.
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