Table 2.
Independent t-Tests Between Active and Sham-tDCS + WMT Groups for the Differences (Deltas) of Cognitive Scores from Pre to Post-Treatment (n = 39).
| Cognitive Measures | Active-tDCS + WMT (n = 19) M(SD) | Sham-tDCS + WMT (n = 20) M(SD) | Between-groups P values for Δs | ||||
|---|---|---|---|---|---|---|---|
| Pre-treatment | Pos-treatment | Delta (Δ) | Pre-treatment | Pos-treatment | Delta (Δ) | ||
| Δ COWAT Orthographic | 28.80(11.24) | 34.05(9.65) | 23.46(27.94) | 31.30(10.88) | 34.31(11.88) | 10.74(19.70) | 0.11 |
| Δ COWAT Semantic | 16.80(6.07) | 18.90(5.85) | 14.08(23.78) | 17.55(5.66) | 17.26(5.15) | 0.95(16.32) | 0.52 |
| Δ RAVLT A1 | 6.50(1.67) | 9.20(2.56) | 45.55(40.60) | 6.80(2.09) | 8.26(1.96) | 25.52(35.96) | 0.11 |
| Δ RAVLT A1_A5 | 50.10(10.29) | 58.40(8.74) | 17.30(15.01) | 45.70(10.15) | 53.26(9.21) | 18.03(15.33) | 0.88 |
| Δ RAVLT A7 | 9.65(2.88) | 12.20(2.30) | 28.37(23.67) | 8.70(2.57) | 10.94(2.73) | 25.23(24.13) | 0.68 |
| Δ RAVLT Recognition | 13.30(1.78) | 14.10(1.20) | 6.17(13.21) | 13.50(1.27) | 13.89(1.41) | 2.72(10.75) | 0.37 |
| Δ PASAT | 28.73(13.04) | 33.50(12.61) | 18.42(26.93) | 28.15(11.30) | 32.72(12.10) | 18.21 | 0.98 |
| Δ FDS | 6.90(1.74) | 6.45(1.50) | −4.39(18.29) | 6.90(2.29) | 6.00(1.69) | −9.62 | 0.45 |
| Δ BDS | 4.60(1.35) | 5.05(1.82) | 15.66(49.17) | 4.30(1.62) | 4.73(2.02) | 12.36(39.61) | 0.81 |
Data presented as mean (M) and standard deviation (SD).
Notes. Δ = deltas; COWAT = Controlled Word Association Test; PASAT = Paced Auditory Serial Addiction Test; RAVLT = Rey Auditory Verbal Learning Test; FDS = Forward Digit Span; BDS = Backward Digit Span. P-value is the comparison of the deltas. Significance level was P < 0.05.