Table 3 Correlation between sleep stage percentages with P300 differences and average baseline occipital alpha power

P300 latency difference

 Correlation coefficient

0.326

− 0.352

− 0.046

− 0.178

P value

0.173

0.140

0.852

0.465

P300 reaction time difference

 Correlation coefficient

− 0.133

− 0.077

0.218

− 0.060

P value

0.586

0.753

0.370

0.807

Average O alpha (baseline power before sleep)

 Correlation coefficient

0.014

0.240

− 0.125

− 0.113

P value

0.955

0.323

0.611

0.644

Average O alpha (baseline power after sleep)

 Correlation coefficient

− 0.035

0.258

− 0.021

− 0.065

P value

0.887

0.286

0.932

0.790

Average O alpha difference

 Correlation coefficient

0.030

− 0.194

0.290

− 0.039

P value

0.904

0.426

0.228

0.874