Brain regions that showed significant BOLD activity in the paired t-test contrasts for the (2×2) structural×temporal relationship design.

(A) Effect of temporal relationship (i.e. natural temporal variations). Significant anatomical regions for attend melody in performance stimulus>attend melody in synthetic stimulus. (B) Contrast of attend to melody>attend to accompaniment in the performance stimulus. Effect of structure. Cluster thresholding was performed with a Z-threshold of 2.3 and a corrected p-value of <0.05 with a cluster-based correction for multiple comparisons using Gaussian Random Field Theory.