Electroacupuncture Promotes Neuroplasticity of Central Auditory Pathway: An Auditory Evoked Potentials Study
Table 2
Effect of electroacupuncture at the right TE3 on peak latency and interpeak amplitude of late latency response (LLR) recordings.
Baseline
D3
D5
D8
Peak latency (ms)
P0
EA
15.933 ± 1.808
19.889 ± 1.372∗
18.133 ± 0.970∗
15.600 ± 0.781
Control
14.867 ± 0.825
13.689 ± 1.006
14.556 ± 1.633
15.644 ± 0.953
Na
EA
23.022 ± 2.244
25.511 ± 1.550
23.156 ± 1.076
22.311 ± 1.439
Control
20.444 ± 1.104
19.889 ± 0.996
20.667 ± 1.225
21.978 ± 1.129
Pa
EA
38.667 ± 3.953
37.578 ± 3.176
35.044 ± 4.742
33.533 ± 3.816
Control
37.533 ± 2.934
33.533 ± 3.732
37.378 ± 4.356
38.844 ± 3.948
Nb
EA
56.111 ± 3.056
51.978 ± 5.424
45.378 ± 5.995∗∗
42.711 ± 2.739∗∗∗
Control
55.311 ± 4.975
52.311 ± 4.042
53.222 ± 7.502
50.356 ± 7.124
Pb
EA
64.711 ± 1.806
60.422 ± 6.579
56.400 ± 5.334∗
50.578 ± 4.065∗∗∗∗
Control
69.556 ± 5.895
61.556 ± 5.270
62.889 ± 6.410
57.300 ± 7.161∗
Peak latency shift (ms)
P0
EA
0.000 ± 0.000
3.956 ± 2.975##
2.200 ± 1.889#
−0.333 ± 1.949
Control
0.000 ± 0.000
−1.178 ± 1.358
−0.311 ± 1.078
0.778 ± 1.146
Na
EA
0.000 ± 0.000
2.489 ± 2.965
0.133 ± 2.912
−0.711 ± 1.895
Control
0.000 ± 0.000
−0.556 ± 1.374
0.222 ± 1.185
1.533 ± 1.685
Pa
EA
0.000 ± 0.000
−1.089 ± 6.018
−3.622 ± 6.686
−5.133 ± 6.993
Control
0.000 ± 0.000
−4.000 ± 4.496
−0.156 ± 6.300
1.311 ± 4.390
Nb
EA
0.000 ± 0.000
−4.133 ± 4.862
−10.733 ± 6.357
−13.400 ± 4.688
Control
0.000 ± 0.000
−3.000 ± 6.736
−2.089 ± 9.983
−4.956 ± 10.780
Pb
EA
0.000 ± 0.000
−4.289 ± 6.479
−8.311 ± 5.969
−14.133 ± 4.598
Control
0.000 ± 0.000
−8.000 ± 8.367
−6.667 ± 8.345
−13.300 ± 10.613
Interpeak amplitude (uV)
P0–Na
EA
0.779 ± 0.302
0.744 ± 0.683
1.252 ± 0.569
0.815 ± 0.596
Control
0.829 ± 0.098
0.508 ± 0.045
1.285 ± 0.221
0.708 ± 0.393
Na–Pa
EA
1.765 ± 0.312
2.348 ± 0.680
2.460 ± 0.440∗
1.408 ± 0.409∗
Control
1.367 ± 0.081
1.145 ± 0.257
1.310 ± 0.793
1.135 ± 0.274
Pa–Nb
EA
0.733 ± 0.259
0.776 ± 0.225
1.076 ± 0.242
1.345 ± 0.947
Control
0.463 ± 0.133
0.365 ± 0.239
0.558 ± 0.328
0.700 ± 0.456
Nb–Pb
EA
0.959 ± 0.175
1.074 ± 0.336
1.580 ± 0.648
1.235 ± 0.803
Control
0.968 ± 0.275
0.883 ± 0.205
0.790 ± 0.396
1.148 ± 0.287
Data are presented as mean ± standard deviation (SD); EA: electroacupuncture group; control: control group; D5: fifth day after baseline recordings; D8: eighth day after baseline recordings; P0: wave P0 of LLR; Na: wave Na of LLR; Pa: wave Pa of LLR; Nb: wave Nb of LLR; Pb: wave Pb of LLR; shift: the value of D3, D5, or D8 minus the baseline value; ∗,∗∗,∗∗∗ compared with baseline; ∗∗∗∗ compared with baseline; #,## compared with control.
