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. Author manuscript; available in PMC: 2012 Jan 1.
Published in final edited form as: Neuroimage. 2010 Aug 20;54(1):541–549. doi: 10.1016/j.neuroimage.2010.08.022

Figure 2.

Figure 2

Stimulus-evoked BOLD activity varied with RT in a predominantly linear fashion. (A) A linear relationship between stimulus-evoked activity and RT accounted for a significant proportion of signal variance in the bilateral posterior parietal cortex (PPC), the left dorsolateral prefrontal cortex (DLPFC), the pre-supplementary motor area / anterior cingulate cortex (preSMA/ACC), and the middle occipital gyrus (MOG). In contrast, quadratic (B), cubic (C), and quartic (D) relationships between stimulus-evoked activity and RT did not account for significant proportions of signal variance in any brain regions. All activations are overlaid on a 3D rendering of the MNI-normalized anatomical brain.