Figure 5

Directed corticomuscular coherence. Group-averaged coherence spectra for the descending (A) and ascending (B) components of coherence on the dominant (left spectrum) and non-dominant (right spectrum) hand. Box plots with individual data points and mean level displaying age-related differences in the descending (C) and ascending (D) amplitudes of beta-band corticomusclar coherence between cortical source and active FDI muscles on the dominant and non-dominant hand. Statistical significant differences from the 8–10 y group is marked by * (p < 0.05).