Table 4.

Relationships between factor 2 score and gray matter volume in psychopathic and non-psychopathic individuals

Region	Group	Standardized Beta	Relationship	P-value
Superior Frontal Gyrus (L)	Psychopathic	0.446	Positive	0.004**
	Non-psychopathic	0.188	Positive	0.316
Superior Frontal Gyrus (R)	Psychopathic	0.334	Positive	0.013*
	Non-psychopathic	0.120	Positive	0.425
Middle Frontal Gyrus (R)	Psychopathic	0.412	Positive	0.002**
	Non-psychopathic	0.077	Positive	0.602
Middle Frontal Gyrus (L)	Psychopathic	0.465	Positive	0.005**
	Non-psychopathic	0.269	Positive	0.103
Medial Orbitofrontal Cortex (R)	Psychopathic	0.186	Positive	0.092
	Non-Psychopathic	0.136	Positive	0.350
Putamen (R)	Psychopathic	0.342	Positive	0.032*
	Non-psychopathic	0.429	Positive	0.030*
Caudate (R)	Psychopathic	0.369	Positive	0.040*
	Non-psychopathic	0.298	Positive	0.112
Nucleus Accumbens (L)	Psychopathic	0.225	Positive	0.192
	Non-psychopathic	0.172	Positive	0.405
Nucleus Accumbens (R)	Psychopathic	0.228	Positive	0.168
	Non-psychopathic	0.253	Positive	0.229

As in the original analyses, these analyses control for age, race, substance use, brain volume and PCL-R factor 1 scores. Bolding indicates significance at the

^** P < 0.01 or

^* P < 0.05 level.