Table 3.

Overview of the maximum improvement and optimal noise levels for the different experiments and different analysis

ExperimentInitial analysisControl analysis
Optimal noise level modeMaximum improvement (%, mean ± SE)Optimal noise level modeMaximum improvement (%, mean ± SE)
Subthreshold
    Visual–noise60% of noise threshold15.67 ± 2.6960% of noise threshold12.04 ± 2.83
    tRNS–noise1 mA14.38 ± 2.411 mA11.07 ± 2.27
    tRNS–control0 mA5 ± 2.010 mA2.45 ± 1.65
Suprathreshold
    Visual–noise0% of noise threshold5.53 ± 1.7830% of noise threshold3.71 ± 1.55
    tRNS–noise0 mA7.34 ± 1.470 mA4.87 ± 1.18
    tRNS–control1.5 mA4.44 ± 1.540 mA1.48 ± 0.89
  • The results of our additional analysis confirmed the results of our optimal noise level analysis even though the performance improvement observed for the optimal noise level is, as expected, smaller in our additional analysis.