Figure 3.

Scalp and current sources that encoded hand velocity. A, Mean (n = 5) scalp maps of the best 34 sensors revealed a network of frontal, central, and parietal involvement along with a large individual contribution from sensor CP3. Light and dark colors represent high and low contributors, respectively. Each scalp map with its percentage contribution is displayed above its associated 10 ms time lag, revealing the 16.0% maximal contribution of EEG data at 60 ms in the past. B, We overlaid localized sources (yellow) from 60 ms in the past onto MRI structural images to reveal the involvement of the precentral gyrus (x = −30, y = −30, z = 52), postcentral gyrus (x = −35, y = −30, z = 47), and IPL (x = −35, y = −36, z = 42).