Table 3.
Changes in frequency-domain features across six consecutive PVT blocks (x̄±s)
Frequency-domain features
Block 1
Block 2
Block 3
Block 4
Block 5
Block 6
Total power
2051.4 ± 1632.3
2004.2 ± 1422.2
2193.6 ± 1620.0
2197.9 ± 1503.4
2416.0 ± 1826.2
2253.6 ± 1583.0
peakVLF
0.04 ± 0
0.04 ± 0
0.03 ± 0
0.04 ± 0
0.04 ± 0
0.04 ± 0
peakLF
0.09 ± 0.02
0.08 ± 0.02
0.08 ± 0.02
0.08 ± 0.02
0.08 ± 0.02
0.08 ± 0.02
peakHF
0.23 ± 0.07
0.23 ± 0.08
0.22 ± 0.07
0.22 ± 0.07
0.22 ± 0.07
0.22 ± 0.07
aVLF
123.56 ± 111.66
143.77 ± 104.6
172.25 ± 142.8
170.81 ± 124.67
186.22 ± 143.83
164.45 ± 108.56
aLF
1215.7 ± 899.1
1276.4 ± 863.7
1395.4 ± 905.4
1409.0 ± 914.5
1512.0 ± 982.3
1493.6 ± 1126.1
aHF
710.96 ± 932.5
583.0 ± 690.3
624.6 ± 827.3
616.6 ± 661.1
716.1 ± 938.5
594.6 ± 592.34
VLF(log)
4.48 ± 0.83
4.71 ± 0.76
4.88 ± 0.73
4.92 ± 0.68
4.97 ± 0.72
4.88 ± 0.7
LF(log)
6.84 ± 0.77
6.94 ± 0.69
7.01 ± 0.74
7.05 ± 0.66
7.12 ± 0.66
7.05 ± 0.74
HF(log)
6.11 ± 0.97
5.97 ± 0.87
6.01 ± 0.89
6.05 ± 0.86
6.08 ± 0.96
6.04 ± 0.84
VLF
7.25 ± 5.03
8.11 ± 4.79
9.11 ± 5.38
8.43 ± 4.03
8.96 ± 5.25
8.49 ± 4.5
LF
60.91 ± 13.5
64.83 ± 12.35
65.01 ± 11.28
65.09 ± 12.15
65.63 ± 12.14
65.29 ± 12.78
HF
31.79 ± 15.29
27.01 ± 12.68
25.83 ± 12
26.42 ± 13.16
25.36 ± 12.76
26.17 ± 12.04
LF norm
66.03 ± 15.42
70.67 ± 13.33
71.72 ± 12.53
71.29 ± 13.78
72.26 ± 13.29
71.31 ± 13.23
HF norm
33.92 ± 15.4
29.28 ± 13.31
28.22 ± 12.48
28.65 ± 13.73
27.68 ± 13.25
28.65 ± 13.21
LF/HF
2.6 ± 1.64
3.29 ± 2.37
3.22 ± 1.86
3.43 ± 2.41
3.44 ± 2.1
3.47 ± 2.59