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. Author manuscript; available in PMC: 2014 Apr 15.
Published in final edited form as: Neuroimage. 2012 Dec 28;70:21–32. doi: 10.1016/j.neuroimage.2012.12.042

Figure 2.

Figure 2

Striatal dopamine release during speech production. A speech-induced decrease of RAC BP was found in the left APU, PPU, PCA and in the bilateral ACA. (A) Significant changes in RAC BP during speech production compared to resting are shown on a series of brain images in the coronal plane in the standard Talairach space. The color bar represents the t statistic. (B) The graphs display the RAC BP values and the corresponding RAC ΔBP values in each statistically significant striatal region during resting and speech production in 20 subjects. (C) The graph compares right and left RAC BP values of 20 subjects in the ACA during speech production. ns – non-significant. APU – anterior putamen; PPU – posterior putamen; PCA – posterior caudate nucleus; ACA – anterior caudate nucleus; RAC BP – binding potential of the [11C]raclopride radiotracer.