Table 4.

Genotype group differences in neural activation during inhibition

Genotype	Contrast		Group (N)
Region			Mean Percent Signal Change (SEM)
SLC6A3	StopInhibit—Go		10/10 (26)	9+ (16)
IFG			0.064 (0.014)	0.074 (0.016)
STN			0.021 (0.012)	0.057 (0.020)
SMA			0.004 (0.011)	0.043 (0.012)
GP			0.047 (0.015)	0.082 (0.028)
COMT	StopInhibit—Go	v/v (10)	v/m (26)	m/m (6)
IFG		0.073 (0.026)	0.074 (0.011)	0.034 (0.033)
STN		0.034 (0.025)	0.044 (0.014)	-0.002 (0.021)
SMA		0.027 (0.015)	0.022 (0.012)	-0.007 (0.021)
GP		0.057 (0.00)	0.063 (0.000)	0.054 (0.000)
COMT	Go—Fixation	v/v (10)	v/m (26)	m/m (6)
IFG		-0.021 (0.043)	0.044 (0.016)	0.061 (0.053)
STN		0.025 (0.035)	0.042 (0.017)	0.074 (0.032)
SMA		0.049 (0.039)	0.110 (0.015)	0.102 (0.017)
GP		0.002 (0.052)	0.058 (0.020)	0.096 (0.033)
COMT	StopInhibit—Fixation	v/v (10)	v/m (26)	m/m (6)
IFG		0.052 (0.029)	0.118 (0.016)	0.094 (0.085)
STN		0.059 (0.031)	0.086 (0.020)	0.072 (0.042)
SMA		0.076 (0.033)	0.132 (0.016)	0.095 (0.035)
GP		0.059 (0.036)	0.121 (0.022)	0.149 (0.044)

Note. Region of interest analyses thresholded at p < 0.01 uncorrected voxel level and percent signal change extracted. IFG, inferior frontal gyrus; STN, subthalamic nucleus; SMA, supplementary motor area; GP, globus pallidus; N =42.