A Comparison Study on Multidomain EEG Features for Sleep Stage Classification

Table 1

Features definitions in frequency domain.

Symbols	Notation	Equations
	Ratio of the power of δ activity in total EEG frequency band (%)
	Ratio of the power of θ activity in total EEG frequency band (%)
	Ratio of the power of α activity in total EEG frequency band (%)
	Ratio of the power of β activity in total EEG frequency band (%)

: 0.5–2 Hz; : 2–7 Hz; : 8–13 Hz; : 13–30 Hz; : 0.5–30 Hz.