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By her late 40s, Rita Leggett’s epilepsy had brought her to a dark place. The possibility of a seizure meant she would leave her house only when accompanied by her mother or taken to see her neurologist in Melbourne. When this neurologist suggested she enroll in a trial to test a device that would warn her of impending epileptic activity ― an experimental brain implant ― she jumped at the opportunity. Three years later, when the device was removed, Rita was heartbroken.