Table 2.

Classification results of microstates at delta, alpha, and beta bands by using improved HHT-Microstate.

Subjects	Microstates	Accuracy (%)	Sensitivity (%)	Specificity (%)
Delta [0.1–4 Hz]	D1	92.86	94.29	91.43
	D2	90.35	90.03	90.29
	D3	83.33	68.89	91.11
	D4	87.88	86.02	88.14
	D5	83.34	66.67	91.36
Alpha [8–12 Hz]	A1	69.44	75.08	63.89
	A2	78.30	73.58	83.02
	A3	71.28	46.81	87.74
	A4	56.71	64.86	48.16
	A5	61.86	58.28	64.22
Beta [12–30 Hz]	B1	70.19	55.77	84.62
	B2	73.47	90.88	53.06
	B3	61.02	61.02	61.02
	B4	63.64	70.45	56.82