Table 2.
Mean amplitudes and standard deviations (in parentheses) of the Early Frontal (EF), Parietal (P), and Late Frontal (LF) effects, measured in the Old-New difference waveforms, in the anodal and sham sessions, for the middle-aged adults and older adults at each electrode position where the effect was evaluated (F3, Fz, and F4 for the EF and LF effects, and P3, Pz, and P4 for the P effect).
| Early frontal effect (400–700 ms) | Parietal effect (450–800 ms) | Late frontal effect (800–1,600 ms) | |||||
|---|---|---|---|---|---|---|---|
| Anodal | Sham | Anodal | Sham | Anodal | Sham | ||
| F3/P3 | Middle-aged adults | −0.21 (2.27) | 0.61 (1.48) | −0.12 (1.85) | 0.63 (2.28) | 0.22 (2.29) | 1.50 (3.21) |
| Older adults | 0.61 (0.97) | 0.42 (1.41) | 0.09 (1.04) | 0.18 (1.76) | 0.11 (1.86) | 0.40 (1.56) | |
| Fz/Pz | Middle-aged adults | 1.02 (1.89) | 1.40 (1.53) | 0.38 (1.90) | 1.22 (2.89) | 1.35 (2.05) | 1.85 (2.26) |
| Older adults | 1.09 (1.19) | 1.12 (1.45) | 0.03 (1.45) | 0.36 (2.12) | 0.81 (1.83) | 0.20 (1.38) | |
| F4/P4 | Middle-aged adults | 1.52 (1.52) | 1.81 (1.60) | 0.72 (1.77) | 1.30 (2.33) | 1.59 (1.87) | 2.04 (2.52) |
| Older adults | 1.51 (1.12) | 1.51 (1.43) | 0.37 (1.54) | 0.60 (1.62) | 0.97 (1.75) | 0.45 (1.58) | |