Most people can rather efficiently walk and chew gum at the same time, but when it comes to more complicated "multi-tasking" – like driving and talking on a cell phone – there is a price to pay. And no one, it seems, is immune. "There is a cost for switching from one task to another and that cost can be in response time or in accuracy," said Mei-Ching Lien, an assistant professor of psychology at Oregon State University. "Even with a seemingly simple task, structural cognitive limitations can prevent you from efficiently switching to a new task."
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