Research shows that some brain areas are overactive in people with obsessive-compulsive disorder (OCD).It is not clear,however,that overactivity in these areas causes OCD because

Question

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The fact that successful psychotherapy can normalize activity in the overactive brain areas suggests that overactivity does not necessarily cause OCD. If it did, therapy would not be able to reverse the condition as it does.

Research Shows That Some Brain Areas Are Overactive in People