... to the EEG and the detection of drowsiness, the roles of the classical EEG frequency bands, and an overview of various signal processing and data analysis methods used in the analysis of EEG signals ... sleep component of the circadian cycle of sleep and wakefulness, restriction of sleep, and/or interruption or fragmentation of sleep The loss of one night’s sleep can lead to acute sleepiness, while ... sleep, their amplitude is in the range of 20-200 μV 2.2.4 EEG and Sleep Architecture – Wakefulness, Drowsiness and Early Sleep Sleep is regarded as an active and complex state, and the term “sleep...