TY - JOUR AU - Huang, Jue AU - Sander, Christian AU - Jawinski, Philippe AU - Ulke, Christine AU - Spada, Janek AU - Hegerl, Ulrich AU - Hensch, Tilman PY - 2015 DA - 2015/10/06 TI - Test-retest reliability of brain arousal regulation as assessed with VIGALL 2.0 JO - Neuropsychiatric Electrophysiology SP - 13 VL - 1 IS - 1 AB - Different levels of brain arousal can be delineated not only during sleep but also during wakefulness. Electroencephalography (EEG) is the gold standard to assess different levels of brain arousal. A novel EEG- and electrooculography (EOG)-based tool, the Vigilance Algorithm Leipzig (VIGALL 2.0), allows determining the level of EEG-vigilance (indicating brain arousal). Considering the frequency patterns and LORETA-based cortical distribution of electroencephalic activity, VIGALL 2.0 automatically attributes one out of seven vigilance stages to each EEG segment (1-sec EEG segments by default), ranging from high alertness (stage 0), to relaxed wakefulness (stage A1 to A3), to drowsiness (stage B1 to B2/3) up to sleep onset (stage C). Building on the time series of these seven vigilance stages across 20 min, two parameterizations of the temporal dynamic (brain arousal regulation) are calculated: the lability score and the slope index. SN - 2055-4788 UR - https://doi.org/10.1186/s40810-015-0013-9 DO - 10.1186/s40810-015-0013-9 ID - Huang2015 ER -