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David Farmer is a neuroscientist who studies the brainstem, where some of the most ancient and life-essential functions of the brain are carried out. One hindrance to effectively studying the brainstem is that brain cells are numerous, very close together and remarkably squishy. David's FameLab presentation explained how researchers, like himself, are getting around this problem with the use of lasers.
Watch David's performance at the national final in Perth.