Fig. 2.

Beta oscillatory networks in monkey sensorimotor cortex. Coherence (Left) and Granger causality graphs (Right) are depicted in monkeys GE (A) and LU (B). The coherence and Granger causality values are coded by the thickness of the lines between recording sites (Center). The lines in the Granger causality graphs have arrowheads, indicating the direction of Granger causal influence. Lines between site pairs not reaching significance in the coherence and Granger causality measures are not shown. Cs, central sulcus; IPs, intraparietal sulcus; STs, superior temporal sulcus; Ls, lateral sulcus; As, arcuate sulcus.