At night, when Sue Hunt reads stories to her daughter Anna, the rambunctious 7- year-old squirms in bed, seemingly seeking affection but asking her mother to go away.
“She has this way of keeping you at arm’s distance, yet she needs you so bad,” said Hunt, of Madison.
Now UW-Madison scientists say they have found a biological clue to anti-social behavior in children such as Anna, who was adopted from a Russian orphanage.