Empfehlungen der Deutschen EEG-Gesellschaft für das Mapping von EEG-Parametern (EEG- und EP-Mapping)

Colorful brains: 14years of display practice in functional neuroimaging

“…In neurophysiological brain mapping and EEG it was agreed by convention that red and yellow indicate high activity and positive polarity, whereas green and blue are used for low activity and negative polarity (Herrmann et al, 1989, Schott, 2010. To test whether this convention also holds for neuroimaging, we counted the appearance of the basic colors red, yellow, green, blue, and violet in figures of the labeling classes (see above) "activation" and "deactivation".…”

“…Thus, the understanding between illustrator and viewer, so crucial in the communication process, is implicit at best. Given the sheer number of color scales available (Ware, 1988), it raises the question whether a standard has emerged that would be comparable to, e.g., the field of electroencephalography (Herrmann et al, 1989). Third, even when taking for granted that colorcoding does improve the way we access scientific data, the issue of standardizing perception poses major challenges.…”

IPEG Guideline on Statistical Design and Analysis for Pharmacodynamic Trials

“…Other supplements have been issued previously covering data acquisition [2] and mapping and evoked potentials [3]. For related guidelines, see also Versavel et al [4] and Herrmann et al [5]. The present guideline is intended to provide support with respect to the statistical aspects of the design and analysis of pharmacodynamic studies in man, in particular electroencephalographic studies.…”

An Auditory Electrophysiological Intervention in Migraine: A Randomized Placebo Controlled Add On Trial

“…If the initial EEG of a patient showed continuous, focal or localized slow activity, or abnormally high beta activity, the recording was repeated until we were able to obtain a normal EEG in all patients. Frequency analysis was performed for four electrode positions (C3, C4, T3, T4) after an initial visual analysis and artifact rejection, according to the guidelines of the German EEG Society (Hermann et al, 1989). For frequency analysis we used short-time Fast Fourier Transformation (floating point FFT) with bell tapering which outputs spectral amplitude estimates in microvolts as a function of frequency in the following bands: 0.5 to 3.5 Hz (delta), 4 to 7 Hz (theta), 8 to 13 Hz (alpha) 14 to 30 Hz (beta).…”