Question: 6. Brain Volume and Psychiatric Disorders A study used x-ray computed tomography (CT) to collect data on brain volumes for a group of patients with

6. Brain Volume and Psychiatric Disorders A study used x-ray computed tomography

(CT) to collect data on brain volumes for a group of patients with obsessivecompulsive disorders and a control group of healthy persons. Sample results (in mL)

are given below for total brain volumes (based on data from “Neuroanatomical Abnormalities in Obsessive-Compulsive Disorder Detected with Quantitative X-Ray Computed Tomography,” by Luxenberg et al., American Journal of Psychiatry, Vol. 145, No. 9).

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