Table 1.

Striatal regions of significant [¹¹C]raclopride displacement during speech production

Striatum		RAC BP			Peak Coordinates	Peak t-level
Division	Region	Baseline	Speech	ΔRAC BP (%)	x y z
Left AST	ACA	2.06±0.38	1.89±0.47	−8.55	−11 11 8	−3.30
	PCA	0.99±0.20	0.89±0.23	−9.54	−15 −5 20	−3.32
	APU	2.13±0.40	1.99±0.41	−6.32	−15 3 2	−3.74
Right AST	ACA	2.03±0.29	1.94±0.25	−3.96	15 7 12	−3.29
Left SMST	PPU	2.30±0.51	2.14±0.44	−6.25	−27 −7 0	−2.73

Coordinates are given in the Talairach-Tournoux standard space. Statistical significance is set at p ≤ 0. 013, corrected for multiple comparisons. AST – associative striatum; SMST – sensorimotor striatum; ACA – anterior caudate; PCA – posterior caudate; APU – anterior putamen; PPU – posterior putamen; RAC – BP binding potential of the [¹¹C]raclopride radiotracer.