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. Author manuscript; available in PMC: 2014 Feb 18.
Published in final edited form as: Neuroinformatics. 2012 Jul;10(3):225–242. doi: 10.1007/s12021-012-9142-5

Figure 4.

Figure 4

Illustration of BOLD signal mapping for two cortical vertices (yellow bubbles) that are not in the GM (in purple). In Fig. 4(a), vertex 1 uses fiber guidance to find the GM voxel target (in red); vertex 2 uses its normal direction to find the GM target (in green). Fig. 4(b) shows the cortical surface overlaid by the fiber tracts.