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. 2021 Feb 4;11:3072. doi: 10.1038/s41598-021-82663-w

Table 1.

Training effects on cognitive tasks.

NBG MPG BCG F P ηp2
Pre-test Post-test Pre-test Post-test Pre-test Post-test
M (SEM) M (SEM) M (SEM) M (SEM) M (SEM) M (SEM)
Dual n-back task n = 50 n = 47 n = 42
2-back (d′) 0.83 (0.17) 3.37 (0.16) 1.25 (0.16) 1.42 (0.16) 0.91 (0.18) 1.53 (0.20) 36.435 < 0.001 0.349
4-back (d′) 0.04 (0.10) 1.78 (0.06) 0.04 (0.12) 0.29 (0.09) 0.02 (0.09) 0.17 (0.12) 46.983 < 0.001 0.409
6-back (d′) − 0.19 (0.10) 0.92 (0.06) − 0.37 (0.15) − 0.06 (0.09) − 0.23 (0.09) − 0.21 (0.11) 17.231 < 0.001 0.202
Words memory task n = 49 n = 50 n = 48
Concrete words (d′) 2.26 (0.12) 2.79 (0.20) 2.37 (0.12) 3.18 (0.18) 2.18 (0.10) 2.57 (0.20) 1.305 0.274 0.018
Abstract words (d′) 2.01 (0.13) 2.26 (0.16) 2.14 (0.15) 2.58 (0.20) 2.08 (0.14) 1.95 (0.15) 3.434 0.035 0.046
Digit-span task n = 50 n = 50 n = 48
Digit-span 9.30 (0.18) 10.14 (0.18) 9.62 (0.16) 9.98 (0.20) 9.50 (0.19) 9.67 (0.19) 4.193 0.017 0.055
Change detection task n = 47 n = 49 n = 46
Load 2 (RT) 750.46 (21.35) 678.01 (18.41) 712.77 (21.94) 663.95 (16.83) 740.21 (22.30) 707.23 (18.19) 1.607 0.204 0.023
Load 4 (RT) 777.97 (20.44) 700.84 (16.76) 728.94 (21.35) 695.88 (19.18) 760.25 (21.02) 730.91 (17.26) 3.046 0.051 0.042
Load 6 (RT) 818.63 (20.60) 740.40 (19.35) 761.26 (21.30) 726.37 (18.70) 790.50 (20.99) 772.56 (19.43) 3.962 0.021 0.054

The statistic parameters in the table indicate interactions of group × time.

d′ d prime, NBG n-back group, MPG memory palace group, BCG blank control group.