There's Something Surprising About People Who Speak More Than One Language Tom McKay - News.Mic
go to original October 4, 2014

Learning more than one language isn't just good for traveling — it may actually make you better at performing tasks that aren't even related to linguistics.

A recent study in Brain and Language by University of Washington researchers generated this somewhat surprising statistic: Bilingual people are about half a second faster at executing novel instructions, like "add 1 to x, divide y by 2, and sum the results" than their monolingual cousins.

In short, the approximately 20% of Americans who are bilingual may tend to have better executive functioning — the network of cognitive processes involved in reasoning and problem solving, among others — than the rest of us.

The study: UW's Andrea Stocco and Chantel Prat reached this conclusion by subjecting 17 bilingual and 14 monolingual people to a battery of arithmetic problems, each comprised of a set of operations and two inputs. Pacific Standards' Nathan Collins explains the process involved:

First, participants ran through 40 practice problems using just two operation sets. Next, they went through another 40 problems, this time a mix of 20 new ones, each with a unique set of operations and inputs, and another 20 featuring the previously studied arithmetic operations, but with new inputs for x and y. Finally, the groups worked through 40 more problems, again a mix of familiar and novel, but this time, they completed them inside a fMRI brain scanner.

The good news for those of us who speak only English is that monolinguals evenly matched bilinguals on accuracy and solved the familiar problems just as quickly. But when the bilingual group was asked to complete the novel problems, they beat out the one-language crowd handily. The brain scans show that the basal ganglia, which exhibits influence on the motor system and action selection, was more active when respondents were completing the unfamiliar problems.

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