Fig 6. Performance across testing stages.

Performance of musicians (gray box) and non-musicians (open box) is plotted for each of the four testing stages. The performance is plotted as the RAU value. Each box represents percentiles of the data. The line within the box indicates the median. Error bars represent the minimums and maximum values. Small circles indicate the outliers. The significant difference between musician and non-musicians groups is indicated by the asteroids above the two boxes for each testing stage. (A) MTS condition in Experiment 1. Musicians’ performance is significantly higher than non-musicians at all four testing stages. (B) RTS condition in Experiment 1. No significant difference between musicians and non-musicians. (C) Experiment 2. Musicians’ performance is significantly higher than non-musicians at stages 1, 2, and 3, but not at stage 4. The significant difference was marked as stars.