Chapter 1
Rewiring the control room: how languages reshape brain anatomy
Chapter 2
The ultimate air traffic controller: mastering mental agility
Chapter 3
The ultimate backup generator: shielding the aging brain
Chapter 4
The social chameleon: how multiple languages change the way we see others
Ch 2 · The ultimate air traffic controller: mastering mental agility
duolingo The Bilingual Brain
Two languages active, / Brain routing traffic, / Powering up my mind.
duolingo The brain's executive control center manages planning, decision-making, and focus by suppressing the unused language in bilinguals.
Quiz
What state are a bilingual person's languages in when they are speaking only one of them?
Quiz
Which region of the brain is primarily responsible for executive functions like decision-making, planning, and focus?
duolingo Constant language filtering helps bilingual children ignore loud classroom distractions.
Quiz
What is the cognitive term for the ability to resist distractions and focus on relevant information?
Quiz
Why do bilingual children often perform better in noisy, chaotic classroom environments?
Fun Fact
Mental multitasking: Bilingual children who switch between languages daily are proven to be significantly faster at prioritizing tasks and multitasking than monolingual peers.
Quiz
How does the "switching cost" of fluent bilinguals compare to that of monolinguals?
Glossary
executive function (noun)
A set of cognitive processes that enables people to plan, focus attention, remember instructions, and manage multiple tasks. Cognitive scientist Ellen Bialystok demonstrated that bilingualism strengthens this system, delaying dementia symptoms by four years.
A set of cognitive processes that enables people to plan, focus attention, remember instructions, and manage multiple tasks. Cognitive scientist Ellen Bialystok demonstrated that bilingualism strengthens this system, delaying dementia symptoms by four years.
Quiz
Why do bilingual children typically excel at the card-sorting rule-switch task at an earlier age?