Table 1. Overview of sleep scoring methodologies.

Reference	Motor parameters	Brain activity parameters	Manual calibration
Brankack and colleagues, 2010	EMG	EEG power: delta (1–4 Hz), theta2 (7–8.5 Hz), and gamma2 (52–70 Hz)	Manual scoring of 5% of data to train LDA or classification tree
Crisler and colleagues, 2008	EMG	EEG: 107 temporal and spectral parameters	Manual scoring of 2 h of data to train SVM
Gross and colleagues, 2009	EMG	EEG: Delta, theta, sigma, and beta bands	Manual determination of thresholds
Louis and colleagues, 2004	EMG	EEG: Delta, theta, alpha, beta, and gamma	Manual scoring of 1 d of data to establish thresholds
Rytkönen and colleagues, 2011	EMG	EEG: Delta, theta, alpha, beta, and gamma	Manual scoring of 5% of data to train naïve Bayes classifier
Veasey and colleagues, 2000	EMG	EEG: Delta, sigma, theta	Manual determination of thresholds
Zeng and colleagues, 2012	Doppler and video recording of movement and breathing	none	Manual scoring of 10% data to train SVM
Liang and colleagues, 2012	EMG	13 EEG features	Manual scoring of 2 animals to establish thresholds for all others
Stephenson and colleagues, 2009	EMG	EEG: delta, alpha, theta, beta, and gamma power	No manual steps

Abbreviations: EEG, electroencephalography; EMG, electromyography; LDA, linear discriminant analysis; SVM, support vector machine.