Being bilingual can help keep your brain in good condition

Steffanie Zazulak
A  silohuette of a side profile of a womans head inside her head space is a ocean sunset

Learning and understanding a new language is one of the most challenging things that your brain can do. But as well as the advantage of acquiring another language, it appears that the effort of giving your brain a good workout today by being bilingual could keep it in better condition in later life.

Research led by Dr. Daniela Perani, a professor of psychology at in Milan, found that people who speak two or more languages seem to weather the ravages of Alzheimer’s disease better compared to people who have only mastered one language. Alzheimer’s is a progressive mental deterioration that can begin in middle or old age due to generalized brain degeneration.

The study involved 85 people with Alzheimer’s – half of whom spoke both German and Italian and half who spoke only one language. The researchers found that bilingual patients had greater connectivity in key brain areas. This was especially in the part of the brain that governs “executive control” – a set of necessary behavioral cognitive processes that include problem-solving, working memory, reasoning and attentional control. The study also noted that the bilingual Alzheimer’s patients showed less severe symptoms of the disease.

The study concluded: “Our findings suggest that the effects of speaking two languages are more powerful than both age and education in providing a protection against cognitive decline.”

Bilingualism and the brain

Although Alzheimer’s disease is currently incurable, the study supports a popular theory that people who have higher levels of education function longer with little manifestation of the illness. Part of the reason why bilingual brains may be better at resisting Alzheimer’s could be due to a lifetime of switching between languages daily.

Learning and speaking more than one language changes how the brain carries out tasks that require focus and concentration on a certain piece of information without being distracted. It can also increase the density of white matter (connections) in the brain, meaning that there are more connections between brain parts, thus making this part of the brain more resistant to degeneration.

This is supported by a study conducted by a team led by Professor Ana Inés Ansaldo at the , which suggests that bilingual people have more robust and more efficient brains compared to those who only speak one language. This is one of the reasons why a bilingual brain can be a buffer against aging and dementia.

They recruited elderly people, half of whom spoke only one language and the other half who had learned a second language between the ages of 11 and 18. All performed equally well on a task that involved focusing on an object's color while ignoring its position, but brain scans revealed a big difference in how they processed the task.

“While bilinguals were recruiting very specific brain areas and a small number of areas to perform the task, monolinguals were recruiting a much larger number of areas that were consuming much more resources. And the networks they were using were very, very complex,” says Professor Ansaldo. “That led us to think that the bilingual brain was more efficient in terms of the amount of resources that bilingual people require to do complex tasks as opposed to the monolingual brain.”

The study concludes that bilingualism shapes the brain in a different way or how people approach complex tasks. It could be because bilinguals must inhibit the language they are not using to focus on the one that they are using.

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    Talking technology: Teaching 21st century communication strategies

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    When my son created a web consulting business as a summer job, I offered to have business cards made for him. “Oh Dad,” he said, “Business cards are so 20th century!”

    It was an embarrassing reminder that communication norms are constantly changing, as are the technologies we use. Younger generations share contact information on their phones’ social media apps, not with business cards. A similar shift has been the move away from business cards featuring fax numbers. “What’s a fax?” my son might ask.

    Fax machines have had a surprisingly long life–the first fax machine was invented in 1843–but they have been largely retired because it’s easier to send images of documents via email attachments.

    More recent technologies, such as the 1992 invention of text messages, seem here to stay, but continue to evolve with innovations like emojis, a 1998 innovation whose name combines the Japanese words e (picture) and moji (character).

    The 55/38/7 rule and the three Cs

    Changing technologies challenge language teachers who struggle to prepare students with the formats and the strategies they need to be effective in academic, business, and social settings. These challenges start with questions about why we have particular norms around communication. These norms form a culture of communication.

    The artist/musician Brian Eno defines culture as what we Dz’t have to do. We may have to walk, but we Dz’t have to dance. Dancing, therefore, is culture. Communication is full of cultural practices that we Dz’t strictly need to do, but which make communication more successful. These include practices based on the 55/38/7 Rule and The Three Cs.

    The 55/38/7 rule is often misinterpreted as being about what someone hears when we speak. It actually refers to the insights of University of California professor, , who looked at how our attitudes, feelings, and beliefs influence our trust in what someone says.

    Mehrabian suggests words only account for seven percent of a message’s impact; tone of voice makes up 38 percent, and body language–including facial expressions–account for the other 55 percent. The consequence of this for our students is that it’s sometimes not so important what they are saying as how they are saying it.

    Another way of looking at this nonverbal communication is in terms of The Three Cs: context, clusters, and congruence.

    Context is about the environment in which communication takes place, any existing relationship between the speakers, and the roles they have. Imagine how each of these factors change if, for example, you met a surgeon at a party compared to meeting the same surgeon in an operating theater where you are about to have your head sawn open.

    Clusters are the sets of body language expressions that together make up a message; smiling while walking toward someone is far different than smiling while carefully backing away.

    Congruence refers to how body language matches–or doesn’t match–a speaker’s words. People saying, “Of course! It’s possible!” while unconsciously shaking their heads from side to side are perhaps being less than truthful.

    How does a culture of communication practices translate to new technologies? Mobile phone texts, just like 19th-century telegraph messages before them, need to be precise in conveying their meaning.

    In virtual meetings (on Teams and Google Hangouts, for example), students need to understand that tone of voice, facial expressions, and body language may be more important than the words they share.

    Politeness as one constant

    An additional key concern in virtual meetings is politeness. Once, in preparation for a new textbook, I was involved in soliciting topics of interest to university teachers. I was surprised that several teachers identified the need to teach politeness. The teachers pointed out that the brevity of social media meant that students were often unwittingly rude in their requests (typical email: “Where’s my grade!”). Moreover, such abruptness was crossing over to their in-person interactions.

    Politeness includes civility, getting along with others, as well as deference, showing respect to those who may have earned it through age, education, and achievement. But politeness is also related to strategies around persuasion and how to listen actively, engage with other speakers by clarifying and elaborating points and ask a range of question types. Online or in person, if students cannot interrupt politely or know when it is better to listen, whatever they have to say will be lost in the court of bad opinion.

    This is particularly important in preparation for academic and business contexts where students need to interact in groups, such as seminar settings and business meetings. Within these, it’s necessary for students to be able to take on a variety of roles, including leadership, taking notes, and playing devil’s advocate to challenge what a group thinks.

    Engaging students with project work

    Role-play can help raise awareness of these strategies among students, but it’s not enough to just take on a variety of roles found in common academic and business exchanges; students need to be able to reflect after each role-play session and infer what strategies are successful.

    Technology-based projects can also help students engage in a range of communication strategies. For example, a ɫèAV series, StartUp, embraces technology in each unit by sprinkling various text messages and web-based research tasks. There are also multimedia projects where students use their phones to collect images or video and share the results in presentations that develop their critical thinking.

    For example:

    Make your own video

    Step 1 Choose a favorite restaurant or meal.

    Step 2 Make a 30-second video. Talk about the meal. Describe what you eat and drink. Explain why you like it.

    Step 3 Share your video. Answer questions and get feedback.

    This simple project subconsciously reinforces the unit’s vocabulary and grammar. It also allows students to personalize the project based on things that they need to talk about in daily life–their local foods in this case. This means that each student’s presentation is unique. Unlike with essay assignments, students tend to work hard to craft several versions until they are satisfied because they know their work will be seen by other students and that they will be asked questions that only they can answer.

    All this forces students to consider speaking strategies, as well as strategies for appropriate facial expressions and body language. Similarly, they have to use active listening strategies when listening to others’ presentations while asking questions. As technology continues to evolve, teachers need to integrate new applications into their teaching so students learn how to communicate with the tools they have at their disposal.