Table 3.

Correlations for PFC and parietal regional fractional anisotropy with BRIEF score, substance use disorder symptoms, and recent substance use frequency.

	PFC FA		Parietal FA
	r	p	r	p
BRIEF	−.304	.03	−.357	.01
Cannabis symptom count	−.310	.03	−.375	.006
Alcohol symptom count	−.135	.3	−.041	.8
Other drug symptom count	−.171	.2	.047	.7
Alcohol use days	.072	.6	.086	.5
Cannabis use days	.065	.6	−.069	.6
Other drug use days	−.161	.2	−.030	.8
Nicotine use days	.001	.9	−.172	.2

Abbreviations: BRIEF: Behavior Rating Inventory of Executive Function; FA: fractional anistropy; PFC: prefrontal cortex; n = 55