Exposure to 2 languages carries far-reaching benefits
People who can speak two languages are more adept at learning a new foreign language than their monolingual counterparts, according to research conducted at Northwestern University. And their bilingual advantage persists even when the new language they study is completely different from the languages they already know. "It's often assumed that individuals who've learned multiple languages simply have a natural aptitude for learning languages," said Viorica Marian, associate professor of communication sciences and disorders at Northwestern University. "While that is true in some cases, our research shows that the experience of becoming bilingual itself makes learning a new language easier."
In the first study to explore a possible advantage in bilinguals who learned a second language at a parent's knee, Northwestern researchers asked three groups of native English speakers -- English-Mandarin bilinguals, English-Spanish bilinguals and monolinguals -- to master words in an invented language that bore no relationship to English, Spanish or Mandarin.
They found that the bilingual participants -- whether English-Mandarin or English-Spanish speakers – mastered nearly twice the number of words as the monolinguals.
And they believe the bilingual advantage is likely to generalize beyond word learning to other kinds of language learning, including learning new words in one's own language and a very basic ability to maintain verbal information.
"After learning another language, individuals can transfer language learning strategies they've acquired to subsequent language learning and become better language learners in general," said Northwestern School of Communication's Marian.
Marian and Margarita Kaushanskaya, now assistant professor of communicative disorders at University of Wisconsin-Madison, are co-authors of "The Bilingual Advantage in Novel World Learning." Their study will be published in the August issue of Psychonomic Bulletin and Review.
The study has important implications for educators who are considering the appropriate age at which to introduce foreign language instruction as well as for parents who in increasing numbers have an option to enroll their children in dual language immersion programs.
"We're seeing that exposure to two languages early in life carries far-reaching benefits," said co-author Kaushanskaya. "Our research tells us that children who grow up with two languages wind up being better language learners later on."
Although there are more opportunities today for children to participate in dual language immersion programs than in the past, parents often avoid them for fear that dual language instruction may end up confusing or distracting their children and inhibit subject learning.
In research presented in the May issue of the Journal of Experimental Psychology, however, the two co-authors demonstrate that bilinguals actually are better able than monolinguals to inhibit irrelevant information while learning a new language. Repressing irrelevant information, after all, is something bilinguals do every time they speak.
What's more, the majority of the world's population outside the United States is bilingual or multilingual, Marian noted. In the U.S., approximately one out of five American households speaks a language other than English at home, according to the U.S. Census. And, with higher birth rates among Hispanics relative to the rest of the population, that proportion is rapidly growing.
Previous research already indicates that individuals who have formally studied two or more languages as adults more easily acquire a new language than monolinguals. New research even indicates that the onset of Alzheimer's disease in bilinguals is, on average, delayed by four years compared to monolinguals.
The Northwestern researchers chose to study bilinguals who learned a second language at an early age and in a non-classroom study to avoid suggestions that their subjects simply were exceptionally talented or motivated foreign language learners.
For their study in Psychonomic Bulletin and Review, the researchers controlled for age, education, English language vocabulary size and, in the case of bilinguals, second language proficiency. Sixty Northwestern University students in their early twenties -- 20 monolinguals, 20 early English-Mandarin speakers and 20 early English-Spanish speakers – participated.
All participants were tested twice for word mastery in the invented language. The initial test took place immediately after they heard and repeated the invented language words. The second test occurred a week later.
Source: Northwestern University
Articles on the same topic
- Preschoolers' language development is partly tied to their classmates' language skillsFri, 15 May 2009, 0:36:23 EDT
- Exposure to two languages carries far-reaching benefitsfrom Science CentricWed, 20 May 2009, 12:07:20 EDT
- Exposure To Two Languages Carries Far-reaching Benefitsfrom Science DailyWed, 20 May 2009, 11:22:07 EDT
- Exposure to 2 languages carries far-reaching benefitsfrom Science BlogTue, 19 May 2009, 16:49:29 EDT
- Exposure to two languages carries far-reaching benefitsfrom PhysorgTue, 19 May 2009, 16:28:11 EDT
- Preschoolers' Language Development Is Partly Tied To Their Classmates' Language Skillsfrom Science DailyMon, 18 May 2009, 2:28:38 EDT
- Preschoolers' language development is partly tied to their classmates' language skillsfrom PhysorgFri, 15 May 2009, 12:01:38 EDT
- Preschoolers' language development is partly tied to their classmates' language skillsfrom Science CentricFri, 15 May 2009, 4:49:22 EDT
- Preschoolers' language development is partly tied to their classmates' language skillsfrom Science BlogFri, 15 May 2009, 0:49:09 EDT
- Learning a second language is good childhood mind medicine, studies findfrom PhysorgWed, 13 May 2009, 16:49:05 EDT
Latest Science NewsletterGet the latest and most popular science news articles of the week in your Inbox! It's free!
Check out our next project, Biology.Net
From other science news sites
Popular science news articles
- Antarctic ice sheet is result of CO2 decrease, not continental breakup
- Hubble shows farthest lensing galaxy yields clues to early universe
- Pesticide DDT linked to slow metabolism, obesity and diabetes
- Scientists reproduce evolutionary changes by manipulating embryonic development of mice
- Vocal variety in African penguins
- Stanford team achieves 'holy grail' of battery design: A stable lithium anode
- Common blood thinner for pregnant women proven ineffective: Lancet study
- New research suggests Saharan dust is key to the formation of Bahamas' Great Bank
- Dinosaurs fell victim to perfect storm of events, study shows
- New hope for powdery mildew resistant barley
- Smithsonian scientist and collaborators revise timeline of human origins
- Meet the gomphothere: UA archaeologist involved in discovery of bones of elephant ancestor
- New view of Rainier's volcanic plumbing
- Domestication syndrome: White patches, baby faces and tameness
- Extinct human cousin gave Tibetans advantage at high elevation