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. Author manuscript; available in PMC: 2010 Oct 1.
Published in final edited form as: Neuroimage. 2009 Jun 11;47(4):2041–2045. doi: 10.1016/j.neuroimage.2009.06.008

FIGURE 4.

FIGURE 4

There was no change in the rate of ligand displacement after task initiation in the cerebellum, which was used as a reference region because of paucity of dopamine receptors in this area. The curve indicates that nonspecific binding of the ligand was not affected by the task. The ligand concentration is expressed as kBq/cc.