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. Author manuscript; available in PMC: 2018 Apr 12.
Published in final edited form as: Drug Alcohol Depend. 2017 Jan 21;173:178–184. doi: 10.1016/j.drugalcdep.2016.12.008

Fig. 2.

Fig. 2

Normalized percent signal change in ROIs across finger tapping speeds (Contralateral Network). BOLD percent signal change within the medium and fast task are shown relative to the slow condition. There was no main effect of group when comparing % signal change for various difficulty levels between users (dashed line) and controls (solid gray line). ROIs with a significant main effect of task speed included left M1 (p < 0.001), left SMA (p < 0.001), left ACC (p < 0.05), and right cerebellum (p < 0.001). Left thalamus, left caudate and left putamen showed no main effect of speed. Significant main effects of speed are noted (* = p < 0.05, ** = p < 0.01, ** = p < 0.001).