Slashdot writes, An anonymous reader tips news of a study from researchers at the University of Strathclyde which found bilingual children to be significantly more successful at a set of tasks than children who spoke only one language. "The differences were linked to the mental alertness required to switch between languages, which could develop skills useful in other types of thinking." Lead researcher Fraser Lauchlan said, "Bilingualism is now largely seen as being beneficial to children but there remains a view that it can be confusing, and so potentially detrimental to them. Our study has found that it can...