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NCCs are important for theory, and also for practice. Arachnophobia, an excessive fear of spiders, is correlated with activity in the amygdala. Triggering this fear and its NCC in the amygdala allows both to be erased. Merel Kindt, a psychotherapist in the Netherlands, cures arachnophobia by asking the arachnophobe first to touch a live tarantula, thus activating the phobia and its NCC. She then asks the patient to take a forty-milligram pill of propranolol, a ß-adrenergic blocker that disrupts the NCC from being stored back into memory. When the patient returns the next day, the phobia is
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