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. Author manuscript; available in PMC: 2013 Nov 1.
Published in final edited form as: Neuroimage. 2011 Nov 30;63(2):894–909. doi: 10.1016/j.neuroimage.2011.11.020

Figure 1.

Figure 1

Illustration of the spatiotemporal dynamic source model. The left panel shows the reconstructed cortical surface where the caudal portion of cortex is depicted as a triangulated mesh of dipole sources. The zoomed-in panel in the right shows a dipole source (central red dot) and its nearest-neighbor dipole sources (green dots). At a given point in time, the activity at the central dipole (red dot) is a function of its past activity and the weighted activity of a small neighborhood of dipole sources (green dots), plus a perturbation that represents unknown factors affecting the dipole source activity. The weights (black dashed arrows) are inversely proportional to the distance from the central dipole.