The Most Current Research Suggests That, Among People with Obsessive-Compulsive

Multiple Choice

The most current research suggests that, among people with obsessive-compulsive disorder, reductions in activity levels in the caudate nuclei result from:

A) the associated reduction in serotonin levels in the brain.
B) both medications and cognitive-behavioral therapies.
C) one's initial level of caudate nuclei activity-those with high levels maintain them.
D) an artifact in the research protocol related to the length of time the person has had the diagnosis.