Study identifies possible cause of OCD. Rodents deficient in a particular brain protein were found to engage in excessive grooming rituals. The protein is found in areas of the brain responsible for decision-making, emotional reactions, voluntary motor control, and habitual behaviors.

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Study identifies possible cause of OCD. Rodents deficient in a particular brain protein were found to engage in excessive grooming rituals. The protein is found in areas of the brain responsible for decision-making, emotional reactions, voluntary motor control, and habitual behaviors.