Your textbook discusses the results of several PET-scan studies involving people with obsessive-compulsive disorder (OCD). Among those who were taking the SSRI Prozac, the metabolism of glucose in a critical part of the brain decreased,
suggesting that the drug was having a beneficial effect by "calming" that area. How did this effect compare to the patients who were receiving cognitive-behavior therapy and no medicine? What does this result suggest?
Answer: A good answer will include the following key points.
• Exactly the same brain changes occurred in patients who were getting cognitive-behavior therapy and no medication.
• This suggests that both the medical and the psychological therapies had similar effects.
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