Table 1 Behavioral performance on the out-of-scanner n-back task.

From: Individual differences in frontoparietal plasticity in humans

 

2-back

3-back

4-back

Average

Pre M (SD)

Post M (SD)

Δ M (SD)

Pre M (SD)

Post M (SD)

Δ M (SD)

Pre M (SD)

Post M (SD)

Δ M (SD)

Pre M (SD)

Post M (SD)

Δ M (SD)

Accuracy (%)

92.2 (0.05)

94.2 (0.04)

0.02** (0.04)

85.1 (0.06)

85.6 (0.07)

0.004 (0.05)

82.0 (0.06)

83.7 (0.06)

0.02* (0.05)

86.4 (0.05)

87.8 (0.05)

0.01** (0.03)

Reaction Time (s)

0.50 (0.17)

0.39 (0.17)

−0.11*** (0.12)

0.60 (0.21)

0.42 (0.17)

−0.18*** (0.16)

0.55 (0.20)

0.35 (0.15)

−0.20*** (0.17)

0.57 (0.19)

0.41 (0.16)

−0.16*** (0.13)

  1. Task accuracy is represented using percentage of correctly-answered trials, and response time is represented using seconds taken to respond to stimuli. The delta values for change in accuracy and response time across timepoints represent the difference between pre- and post-training means (M) and standard deviations (SD). Bolded values denote significant training-related changes, as indicated by Student’s t-test. * = p ≤ 0.05, ** = p ≤ 0.01, *** = p ≤ 0.001.