When Adult Brains Change: What Indonesia Taught Me About Language Learning
Six weeks before a short-term assignment in Indonesia, I dutifully opened Duolingo and began working through the Bahasa Indonesia course. It was slow. Painfully slow. And the sentences — “my cat drinks milk,” “I see the bread on the table” — felt like linguistic postcards from nowhere. I kept wondering when, exactly, I would need to announce the dairy preferences of a hypothetical cat.
Still, I persisted. I arrived in Indonesia with a handful of phrases and a vague sense of the language’s rhythm. And then something happened that no app had prepared me for: I needed Indonesian immediately.
A small complication at the airport. A hotel check‑in with no English. A first dinner out with my American colleague — at a lovely, inexpensive local restaurant where the staff spoke only Indonesian. A winding walk home through unfamiliar streets.
Without Indonesian, we would not have eaten. We would not have found our way back. We would not have been able to function.
The next day, as we were being shown around the grounds, a cat appeared (of course). Our guide mentioned that the cat lived there. “Kucingmu?” I asked — “Is it your cat?” He grinned. “You speak Indonesian!”
From that moment, the interpreter assigned to us began teaching me more as we worked together. And then one day he was sick. He texted me — in Indonesian — that I would need to speak with the driver, the guards, and the officials myself, and interpret for my colleague. Suddenly, I was doing exactly what my brain loves: learning in real time, in real situations, with real consequences for misunderstanding.
And I learned more Indonesian in those days than in all six weeks of Duolingo.
Why? The Neuroscience Has an Answer
Over the last fifteen years, research has shown something remarkable: adult language learning can physically reshape the brain. The most striking evidence comes from a 2012 MRI study at Lund University, where military interpreter trainees underwent intensive language training for thirteen months. Their brains changed — visibly. The hippocampus grew. The frontal and temporal language regions thickened. The control group, studying equally hard in other subjects, showed no such changes.
But here’s the key: The brain changed because the learning was intense, contextual, social, and high‑stakes.
Exactly the conditions I found myself in in Indonesia.
1. Real situations activate the hippocampus
The hippocampus is the brain’s learning engine — responsible for memory, spatial navigation, and rapid encoding. When you’re navigating an airport complication, ordering food, or finding your way home in a new city, the hippocampus is firing on all cylinders. It’s doing what it evolved to do: learn through movement, context, and consequence.
2. Real communication activates the frontal gyrus regions
These regions handle executive function — planning, monitoring, switching, repairing misunderstandings, holding multiple threads in working memory. When you’re interpreting for a colleague or negotiating with a driver, you’re not “practicing vocabulary.” You’re running a full cognitive workout.
3. Real speech activates the superior temporal gyrus
Apps give you clean, slow, predictable audio. Real life gives you accents, speed, emotion, background noise, and the need to understand now. That’s what drives auditory‑processing growth.
In other words: My brain changed in Indonesia because the learning was alive.
Why Duolingo Didn’t Produce the Same Effect
This isn’t a criticism of Duolingo. It’s a recognition of what adult neuroplasticity requires.
Duolingo is:
Low‑stakes
Predictable
Non‑social
Non‑urgent
Decontextualized
Recognition‑based rather than production‑based
It activates pattern matching, not problem‑solving. It activates recall, not executive function. It activates vocabulary exposure, not embodied communication.
Apps can introduce a language. They cannot transform the brain.
The brain changes when the learning matters.
A Quiet Bridge to What Comes Next
This is why approaches like Transformative Language Learning and Teaching (TLLT) and Open Architecture Curricular Design (OACD) matter so deeply — they create classroom conditions that mirror the cognitive demands of real life. But that’s a conversation for another post.
For now, the takeaway is simple:
Adults don’t learn languages by repeating sentences about cats drinking milk. Adults learn languages when the brain is asked to do something real
image and some content supplementation supplied by AI
Read more posts on language learning: MSI Press Blog
Read more posts on Bahasa Indonesian: MSI Press Blog
post inspired by Think Yourself into Becoming a Language Learning Super Star (Betty Lou Leaver)
book description
Learn how to learn a language—your way.
This book goes beyond standard language learning strategies to help you build a personalized system for rapid, effective progress. Combining reading, writing, listening, and speaking skills with insights from cognitive psychology, I show you how to strengthen memory, manage cognitive dissonance, and control emotional reasoning.
Discover how personality, mindset, and health affect language learning—and how to use them to your advantage for faster progress, better retention, and success in language tests and real-world communication.
has gained mass recognition for releasing highly acclaimed books of varying genres
that are distributed internationally. Check us out on Wikitia.
To purchase copies of any MSI Press book at 25% discount,
use code FF25 at MSI Press webstore.
Want to read an MSI Press book and not have to pay for it?
(1) Ask your local library to purchase and shelve it.
(2) Ask us for a review copy; we love to have our books reviewed.
VISIT OUR WEBSITE TO LEARN MORE ABOUT ALL OUR AUTHORS AND TITLES.
Sign up for the MSI Press LLC monthly newsletter: get inside information before others see it and access to additional book content(recent releases, sales/discounts, awards, reviews, Amazon top 100 list, links to precerpts/excerpts, author advice, and more)Check out recent issues.
Turned away by other publishers because you are a first-time author and/or do not have a strong platform yet? If you have a strong manuscript, San Juan Books, our hybrid publishing division, may be able to help. Ask us. Check out more information at www.msipress.com.
Planning on self-publishing and don't know where to start? Our author au pair services will mentor you through the process. See what we can do for your at www.msipress.com.
Interested in receiving a free copy of this or any MSI Press LLC book in exchange for reviewing a current or forthcoming MSI Press LLC book? Contact editor@msipress.com.
Want an author-signed copy of this book? Purchase the book at 25% discount (use coupon code FF25) and concurrently send a written request to orders@msipress.com.Julia Aziz, signing her book, Lessons of Labor, at an event at Book People in Austin, Texas.
Want to communicate with one of our authors? You can! Find their contact information on our Authors' Pages.Steven Greenebaum, author of award-winning books, An Afternoon's Discussion and One Family: Indivisible, talking to a reader at Barnes & Noble in Gilroy, California.MSI Press is ranked among the top publishers in California.
Check out our rankings -- and more -- HERE.
Comments
Post a Comment