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Παρασκευή 16 Φεβρουαρίου 2018

Objective assessment of the degree of improvement or deterioration with patients by means of Ipsative Trend Analysis of resting electroencephalograms

Publication date: April 2018
Source:Medical Hypotheses, Volume 113
Author(s): Gerald Ulrich, Georg Juckel, Willi Schlösser
We report on a new quantitative EEG-approach, called Ipsative Trend Assessment which is based on the spatio-temporally defined patterns which are generated by the global interaction of cortical neurons.MethodsThe data were acquired from EEGs being recorded under resting conditions. Target variables are not the usually employed absolute values of the spectral parameters but rather their change being calculated from successive recordings with a single subjects design.RationaleSince the resting-EEG does not provide specific information, we had to decide what else might be addressed by that method.ConclusionsOur hypothesis according to which the SR-EEG indicates Selye's behaviorally non-specific General Adaptation Syndrome is based on good evidence.Main findingsDynamic pattern comparison between subsequent EEGs on the single case level is a hitherto neglected method, which may be utilize, for instance, with regard to objective therapeutic outcome assessment.SignificanceIn order to substantiate the clinical meaningfulness of our new approach we report two case vignettes of psychiatric impairments. Apart from that, our procedure should provide the desperately needed objective assessment of the therapeutic effect with any disease displaying a certain proportion of unspecific symptoms.



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