Figure 3. Examples of sleep spindles detected in the ANT from Patient #10: fast SP(pure) (left), and SP(ripple) (right). Upper row: 5 Hz highpass-filtered signal (raw signal), second row: 10–16 Hz bandpass-filtered signal (spindle band), third row: 100–200 Hz bandpass filtered signal (ripple band) of the same sleep spindle within each category. The fourth row depicts the time-frequency power spectra averaged across all fast sleep spindles of the same category detected in one ANT derivation of the same patient. The timepoint “0”, and the green and blue lines indicate the onset of sleep spindles.