Shawn Helbig, 27, who has Fragile X syndrome, poses with his mother, Sandy Britt, during a visit to Emory University's Department of Human Genetics, where Helbig is taking part in a clinical trial to find a treatment for the genetic condition, Thursday, Jan. 28, 2010, in Atlanta. (AP Photo/Rich Addicks)

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Experiment takes aim at learning disorder

• By ncs-import
• February 2, 2010