Abstract

Electroencephalography (EEG) remain the key method to assess the functional state of the brain. In outpatient practice one of the most widespread EEG types is short-term or 'routine EEG', that means the registration of cerebral activity up to 30 minutes with carrying out of activation tests. The previously published 'Survey among Russian doctors on routine electroencephalography' has shown huge variability of methodology of routine EEG and caused a vibrant discussion. Thus, in the letter to editor 'Crisis of quantitative electroencephalography' by L. B. Ivanov, critical opinion was expressed about the requirement of such surveys, about the reference parameters of activation tests, and about insufficient education of functional diagnostic doctors, especially in the sphere of using quantitative EEG for diagnostics of psychiatric pathology.The manuscript presents new arguments regarding the expediency of a clear definition of the EEG terms and conditions and importance to develop official methodological guidelines for various EEG types in accordance with clinical guidelines.

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