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Validation set of 18 nap EEG recordings. Agreement in sleep spindle detection during stage 2 in C3A2 EEG derivation between our algorithm, human visual scorer and SIESTA automatic spindle detector. On y axis there are presented: (A) total number of detected sleep spindles for each recording, (B) spindle density for each recording, (C) the kappa coefficient of scorers agreement for each recording. Subject id and number of nap recording are presented on x axis.
