Fig. 1.

Fixed-pace experiment: coherence spectra and directionality results. A. Coherence spectra (one trace per subject) and associated group-level topographic distribution at F0, F1, and averaged across F0 and F1. B. Renormalized partial directed coherence (rPDC) in the afferent and efferent directions (one trace per subject). C. Same as B with added noise to the accelerometer (Acc) signal. The gray horizontal lines indicate the threshold of statistical significance. SM1: primary sensorimotor.