Table 4 Mean difference and standard error between the SLT and placebo treatments for each EEG band and ERP component (all μV)
|  | Mean Difference ± Standard Error | |
|---|---|---|
EEG Spectral Band | Eyes Open | Eyes Closed |
 Delta | -1.64 ± -0.01 | -0.07 ± -0.73 |
 Theta | -0.82 ± -0.37 | 0.20 ± -0.32 |
 Alpha | -0.16 ± 0.44 | -3.66 ± -0.94 |
 Beta | 2.14 ± 0.82 | -0.65 ± -0.5 |
Visual ERP Component | Target | Nontarget |
 N1 | -1.72 ± -0.06 | -0.45 ± -0.17 |
 P2 | -0.37 ± -0.08 | -0.69 ± 0.02 |
 N2 | -0.74 ± -0.06 | -0.05 ± -0.26 |
 P3a | 2.58 ± 0.02 | 1.98 ± -0.20 |
 P3b | -1.12 ± 0.10 | -1.38 ± -0.04 |
Auditory ERP Component | Target | Nontarget |
  N1 | 2.14 ± 0.11 | -1.38 ± -0.14 |
 P2 | 1.16 ± 0.84 | -1.02 ± -0.31 |
 N2 | -0.14 ± 1.78 | -0.04 ± -0.13 |
  P3a | 3.65 ± 0.07 | -0.36 ± -0.08 |
 P3b | 0.58 ± -0.25 | -2.27 ± 0.10 |