Table 2.

Regional Volumes (denoted in mm3)

Regions	Controls		Cocaine abusers		p-value
	Mean	SD	Mean	SD
Occipital cortex	51835	10165	52377	7615	0.88
Ventral striatum	1826	336	1708	302	0.38
Associative striatum	7723	815	7606	828	0.73
Precommissural dorsal caudate	3436	515	3577	542	0.52
Postcommissural caudate	2024	292	1886	498	0.42
Precommissural anterior putamen	2262	407	2143	441	0.50
Postcommissural putamen	4848	1015	4844	518	0.99
Whole striatum	14396	1699	14158	851	0.67

Values are mean and standard deviation (SD), n = 12 per group

p-values are from two-tailed, unpaired t tests