TABLE 3.

PSD values, expressed as mean (standard deviation) of the z-scores, for the different clusters, across all frequency bands, for the orofacial pain (OFP) patients and the healthy controls (HC) for the eyes open (top table) and pain stimulus (bottom table) conditions.

Eyes Open
	Theta		Delta		Alfa		Beta		Gamma
Cluster	OFP	HC	OFP	HC	OFP	HC	OFP	HC	OFP	HC
F3	0.67 (0.73)	0.75 (0.72)	1 (0.74)	1.2 (0.62)	0.78 (0.94)	0.78 (0.99)	0.15 (0.35)	0.21 (0.37)	−0.46 (0.11)	−0.5 (0.12)
F4	0.68 (0.66)	0.77 (0.58)	1.1 (0.64)	1.2 (0.63)	0.83 (0.91)	0.78 (0.89)	0.1 (0.35)	0.25 (0.38)	−0.42 (0.099)	−0.51 (0.13)
C3	0.52 (0.67)	0.66 (0.6)	1 (0.75)	1.2 (0.54)	1.1 (0.93)	1.1 (0.97)	0.18 (0.42)	0.22 (0.3)	−0.45 (0.095)	−0.47 (0.088)
C4	0.54 (0.65)	0.62 (0.5)	1.1 (0.7)	1.2 (0.6)	1.1 (0.93)	1.1 (0.95)	0.14 (0.45)	0.24 (0.32)	−0.41 (0.16)	−0.49 (0.098)
P3	0.67 (0.53)	0.8 (0.45)	1.1 (0.62)	1.3 (0.44)	1.5 (1)	1.3 (0.83)	0.16 (0.41)	0.16 (0.23)	−0.45 (0.077)	−0.47 (0.054)
P4	0.67 (0.55)	0.76 (0.42)	1.1 (0.69)	1.2 (0.48)	1.5 (1)	1.3 (0.85)	0.13 (0.42)	0.16 (0.21)	−0.43 (0.1)	−0.47 (0.072)
Pain stimulus
F3	0.3 (0.52)	0.58 (0.51)	0.86 (0.68)	1.2 (0.55)	0.38 (0.69)	0.27 (0.5)	0.049 (0.3)	0.016 (0.24)	−0.4 (0.11)	−0.39 (0.11)
F4	0.43 (0.53)	0.55 (0.45)	1.1 (0.71)	1.1 (0.49)	0.31 (0.57)	0.19 (0.43)	0.067 (0.38)	0.03 (0.28)	−0.41 (0.13)	−0.39 (0.14)
C3	0.4 (0.37)	0.54 (0.5)	1.1 (0.57)	1.2 (0.62)	0.57 (0.8)	0.34 (0.5)	0.092 (0.33)	-0.0018 (0.17)	−0.41 (0.11)	−0.36 (0.12)
C4	0.44 (0.48)	0.47 (0.5)	1.2 (0.6)	1.1 (0.6)	0.45 (0.56)	0.25 (0.38)	0.086 (0.35)	0.036 (0.21)	−0.41 (0.12)	−0.36 (0.14)
P3	0.57 (0.36)	0.59 (0.5)	1.1 (0.43)	1.3 (0.52)	0.82 (0.77)	0.51 (0.47)	0.12 (0.33)	0.035 (0.19)	−0.44 (0.088)	−0.39 (0.085)
P4	0.57 (0.38)	0.52 (0.54)	1.3 (0.57)	1.2 (0.59)	0.86 (0.79)	0.55 (0.59)	0.084 (0.3)	0.062 (0.18)	−0.43 (0.074)	−0.4 (0.087)