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Dr. Joy Hirsch, head of Memorial Sloan-Kettering Hospital's functional M.R.I. Laboratory, and her graduate student, Karl Kim, found that second languages are stored differently in the human brain, depending on when they are learned. Babies who learn two languages simultaneously, and apparently effortlessly, have a single brain region for generating complex speech, researchers say. But people who learn a second language in adolescence or adulthood possess two such brain regions, one for each language. To explore where languages lie in the brain, Dr. Hirsch recruited 12 healthy bilingual people from New York City. Ten different languages were represented in the group. Half had learned two languages in infancy. The other half began learning a second language around age 11 and had acquired fluency by 19 after living in the country where the language was spoken. With their heads inside the M.R.I. machine, subjects thought silently about what they had done the day before using complex sentences, first in one language, then in the other. The machine detected increases in blood flow, indicating where in the brain this thinking took place. Activity was noted in Wernicke's area, a region devoted to understanding the meaning of words and the subject matter of spoken language, or semantics, as well as Broca's area, a region dedicated to the execution of speech, as well as some deep grammatical aspects of language. None of the 12 bilinguals had two separate Wernicke's areas, Dr. Hirsch said. But there were dramatic differences in Broca's areas, Dr. Hirsch said. In people who had learned both languages in infancy, there was only one uniform Broca's region for both languages, a dot of tissue containing about 30,000 neurons. Among those who had learned a second language in adolescence, however, Broca's area seemed to be divided into two distinct areas. Only one area was activated for each language. These two areas lay close to each other but were always separate, Dr. Hirsch s

The English Proficiency Index ranks Swedes as the #1 non-native speakers of English. This Japanese study examines some factors that may've contributed to Swedesʻ successful language learning, including 1. Foreign language learning is compulsory and comprehensive in Sweden, and there are set minimum hours for instruction. Beginning in 1995, the Swedish educational system introduces English in Gr. 1, a second language in Gr. 6, and a third (yes, you read that right!) language in Gr. 8, 2) the perception that English= high status language (overall, in the EU, English is the most taught language and the most desirable for business and academic purposes), 3) Communicative Language Learning approach to teaching English: the foreign language class is taught in the target language 4)Higher expectations for teaching credentials; even elementary school teachers must have graduate school credits, 5) Linguistic similarities between L1= Swedish and target L2= English, as both share Proto-Norse as their linguistic ancestor, 6) High frequency of English terms absorbed into Swedish as a result of globalization, particularly pop culture, 7) Adoption of CLIL (Content and Language-Integrated Learning): in other words, English is the language of instruction for non-language disciplines.

A 2013 joint study, conducted by the Montreal Neurological Institute and Hospital -- The Neuro at McGill University and Oxford University, concludes that the pattern of brain development is similar if you learn one or two languages from birth. However, learning a second language later on in childhood, after gaining proficiency in the first (native) language, does in fact, modify the brain's structure, specifically the brain's inferior frontal cortex. The left inferior frontal cortex became thicker and the right inferior frontal cortex became thinner. The cortex is a multi-layered mass of neurons that plays a major role in cognitive functions such as thought, language, consciousness and memory. The study suggests that the task of acquiring a second language after infancy stimulates new neural growth and connections among neurons in ways seen in acquiring complex motor skills such as juggling. The study's authors speculate that the difficulty that some people have in learning a second language later in life could be explained at the structural level. "The later in childhood that the second language is acquired, the greater are the changes in the inferior frontal cortex," said Dr. Denise Klein, researcher in The Neuro's Cognitive Neuroscience Unit and a lead author on the paper published in the journal Brain and Language. "Our results provide structural evidence that age of acquisition is crucial in laying down the structure for language learning."

The critical period hypothesis is one of the reasons that some adults are hesitant to take on learning their heritage language. The theory essentially argues that there's a biological window where language learning is the most automatic, somewhere between the age of 2 and puberty. This theory has entered our popular consciousness as a rule that you can't learn a second-language fluently when you're older. However, scientists disagree with this notion because although it will take more conscious effort, it is still possible to become fluent in another language past the "critical window." Specifically, second language acquisition becomes more difficult with age because it requires rewiring your brain to break certain habits that relate to language learning. For example, pronunciation and accent requires breaking habits related to the way you move your mouth to speak, making it more difficult to have native-level pronunciation as you grow older. Beyond neuroscience, though, research has shown that other factors, such as exposure and education influence language learning.

Tracey Tokuhama-Espinosa is a neuroscientist and Professor of Education and Neuropsychology at the Universidad San Francisco de Quito. She's also been a consultant to Punahou for Mind-Brain Education. In this interview, she discusses the benefits of knowing multiple languages and states 10 key factors leading to successful second and multiple language acquisition: 1. Timing and The Windows of Opportunity 2. Aptitude for Foreign Languages 3. Motivation 4. Strategy 5. Consistency 6. Opportunity and Support (Home, School and Community) 7. Language Typology and Similarities 8. Siblings 9. Gender 10. Hand Use as a reflection of cerebral dominance for languages.

Spontaneous gesture can help children learn, whether they use a spoken language or sign language, according to a new report by Susan Goldin-Meadow, psychology professor at the University of Chicago. "Children who can hear use gesture along with speech to communicate as they acquire spoken language," a researcher said. "Those gesture-plus-word combinations precede and predict the acquisition of word combinations that convey the same notions. Gesture plays a role in learning for signers even though it is in the same modality as sign. As a result, gesture cannot aid learners simply by providing a second modality. Rather, gesture adds imagery to the categorical distinctions that form the core of both spoken and sign languages. Goldin-Meadow concludes that gesture can be the basis for a self-made language, assuming linguistic forms and functions when other vehicles are not available. But when a conventional spoken or sign language is present, gesture works along with language, helping to promote learning.

The US has no national-level mandates for studying foreign language, and requirements are mostly set at the school-district and state level. According to a 2017 statistic, only 20% of American K-12 students are enrolled in a foreign language class. In contrast, most European countries have national-level mandates for formally studying languages in school. Across Europe, students typically begin studying their first foreign language as a required school subject between the ages of 6 and 9. Furthermore, studying a second foreign language for at least one year is compulsory in more than 20 European countries. Overall, a median of 92% of European students are learning a language in school. Check out the article to see the statistics--it really puts our monolingual nation to shame.

Great find, Kai!

Due to the increase in language-learning technology, learners of second languages can get exposure to the new language that weren't possible before, making it easier to learn a new language.

Quick comparison of the differences between child and adult second language learning: suggests that children will be able to attain greater fluency in L2, whereas adults will learn the L2 imperfectly.

An important area of the field of second/foreign language teaching and learning is pragmatics -- the appropriate use of language in conducting speech acts such as apologizing, requesting, complimenting, refusing, thanking. Meaning is not just encoded in word semantics alone, but is affected by the situation, the speaker and the listener.A speech act is, according to linguist Kent Bach, "the performance of several acts at once, distinguished by different aspects of the speaker's intention: there is the act of saying something, what one does in saying it, such as requesting or promising, and how one is trying to affect one's audience". Speech acts can be broken down into 3 levels: 1. locutionary: saying something 2. illocutionary: the speaker's intent in performing the act. For example, if the locutionary act in an interaction is the question "Is there any salt?" the implied illocutionary request is "Can someone pass the salt to me?"; 3. In some instances, there's a third perlocutionary level: the act's effect on the feelings, thoughts or actions of either the speaker or the listener, e.g., inspiring, persuading or deterring. The Center for Advanced Research on Language Acquisition (CARLA) at University of Minnesota provides a collection of descriptions of speech acts, as revealed through empirical research. The material is designed to help language teachers and advanced learners to be more aware of the sociocultural use of the language they are teaching or learning. These speech acts include: Apologies Complaints Compliments/Responses Greetings Invitations Refusals Requests Thanks

Cartoonist LA Johnson employs a graphic novel-style approach to a story about a dual-language school: Bruce-Monroe Elementary School in Washington, D.C. In a dual-language classroom, sometimes you're the student and sometimes you're the teacher. Here's what it's like for 6-year-old Merari, an L1=Spanish ELL (English Language Learner).

Abstract: The critical period hypothesis holds that first language acquisition must occur before cerebral lateralization is complete, at about the age of puberty. One prediction of this hypothesis is that second language acquisition will be relatively fast, successful, and qualitatively similar to first language only if it occurs before the age of puberty.

This study looks at how age of acquisition affects second language learning and how it can influence cognitive processing. Bilingual Spanish and English speakers appear to have an advantage over monolingual individuals, with bilingualism shaping word learning and memory capacity. Specifically, early bilinguals performed better than monolingual individuals and late bilingual learners. There were two mechanisms discussed at the end of the study. The first is based on the critical-period-based phenomenon. The second is based on longer exposure to the two languages, which contributes to bilingual advantages.

Scientists from the Higher School of Economics (HSE) together with colleagues from the University of Helsinki have discovered that learning foreign languages enhances the our brain's elasticity and its ability to code information. The more foreign languages we learn, the more effectively our brain reacts and processes the data accumulated in the course of learning.

This article talks about second language acquisition, and a higher efficacy rate in those who are fully immersed in the language they're learning. The study concluded that those in bilingual immersion programs or study-abroads exhibit higher levels of motivation to learn the language due to a desire to assimilate.

Geared for laypeople, this article briefly explains what immersion schools are and reviews research pertaining to language immersion schools, as well as the benefits of teaching general academic content using the target second language.