Psychologists using psychological challenge studies examine brain functioning through PET scans of people affected by a disorder and of those not affected by it. For obsessive-compulsive disorder studies, this technique would

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Psychological challenge studies for obsessive-compulsive disorder typically involve presenting participants with contaminated objects and measuring differences in brain activity. This allows researchers to examine the neural mechanisms involved in OCD symptoms, such as anxiety and compulsions. PET scans can help identify specific areas of over- or under-activation in the brain, which can be used to refine understanding of the disorder and develop more effective treatments.

Psychologists Using Psychological Challenge Studies Examine Brain Functioning Through PET