Correction to: Scientific Reports https://doi.org/10.1038/s41598-017-15343-3, published online 07 November 2017


The original version of this Article contained errors.


The standard deviation values shown in Figure 1a, Figure 2a and Figure 3a,b were incorrectly given.


The original Figures 13 and accompanying figure legends appear below.

Figure 1
figure 1

Relative error: (a) means of the relative error in the random and constant practice conditions, and (b) inter-subject variability over the blocks of trials (bl1…bl6) during both the random and constant practice conditions (*represents significant difference).

Figure 2
figure 2

Absolute error: (a) means of the absolute error in the random and constant practice conditions, and (b) inter-subject variability over the blocks of trials (bl1…bl6) during both random and constant practice conditions (*represents significant difference).

Figure 3
figure 3

Means of the (a) EEG-engagement index and (b) EEG-workload index in the random and constant practice conditions (*represents significant difference).


The original Article has been corrected.