Quantification of visual EEG evaluation by using the concept of optimality
Schlack, H.G.; Buchheim, E.; Ostertag, B.; Penner, H.
Eeg-Emg Zeitschrift für Elektroenzephalographie Elektromyographie und verwandte Gebiete 7(1): 38-42
1976
ISSN/ISBN: 0012-7590 PMID: 829047 Document Number: 105191
For the visual evaluation of the EEG in children (awake) 17 items are formulated and defined. They are to be examined and determined as beeing either optimal or non-optimal, as it is easier to define what is optimal, than what is normal. The non-optimal items are summed up for a total score. It could be shown that this score discriminates between sample groups of 50 children each, one with "minimal brain dysfunction" and another with normal controls of the same age and sex. There are also several distinct differences within the particular items. The objectivity of the items was proved by fourfold examination of the same sample group. The concept of optimality therefore offers a valid and objective method of quantifying the visual EEG evaluation, thus improving the interpretation of minor abnormalities in the EEG.