Correlations of frontal resting-state EEG markers with MMSE scores in patients with Alzheimer’s disease

Table 2 Correlations between MMSE scores and markers recorded from F7

F7	Delta Median	Theta Median	Alpha Median	Theta/Alpha Power ratio	Delta Relative power	Theta Relative power	Alpha Relative power	Beta Relative power
MMSE overall score	− 0.519 2.647	− 0.581 1.018	− 0.256 36.112	− 0.674 0.314	− 0.512 2.920	− 0.627 0.432	0.744 0.024*	0.655 0.243
Orientation to time	− 0.509 3.062	− 0.604 0.666	− 0.453 6.317	− 0.543 3.379	− 0.371 15.030	− 0.640 0.332	0.523 2.511	0.704 0.0736
Orientation to place	− 0.381 13.699	− 0.474 4.882	− 0.216 50.315	− 0.538 4.026	− 0.328 22.123	− 0.630 0.410	0.586 0.932	0.582 1.000
Attention and calculation	− 0.505 3.261	− 0.541 1.930	− 0.188 59.788	− 0.677 0.295	− 0.550 1.670	− 0.559 1.446	0.781 0.007*	0.592 0.836
Recall	− 0.474 4.876	− 0.510 3.026	− 0.243 42.312	− 0.629 0.836	− 0.495 3.700	− 0.510 3.044	0.660 0.215	0.551 1.645

Bold number means positive correlation. First line of each cell represents the Pearson correlation coefficient, and second line represents corrected p-value by multiplying by 280