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 1 · Rewiring the control room: how languages reshape brain anatomy
duolingo Bilingual Neuroplasticity
Speaking two tongues rewires your brain, growing your gray matter with every single word.
duolingo Learning a second language before age five heavily packs the left inferior parietal cortex, which integrates auditory, visual, and language inputs.
Quiz
Which researcher led the 2004 study that first mapped denser gray matter in the left inferior parietal cortex of bilinguals?
Quiz
What is the main difference between gray matter and white matter in the human brain?
duolingo Fatty insulation layers prevent electrical signals from leaking during rapid brain communication.
Quiz
Which major white matter tract, heavily reinforced in bilinguals, connects the front and back language areas of the brain?
Quiz
What fatty substance wraps around axons in white matter to insulate electrical signals in the brain?
Fun Fact
Brain growth: Learning a new language can actually make your brain grow in size, with measurable changes in the hippocampus appearing after just three months of intensive study.
Quiz
According to the 2014 University of Reading study, what did a larger cerebellum volume in bilinguals directly correlate with?
Quiz
Which part of the brain, historically known for physical coordination and balance, was found to have more gray matter in bilinguals?
Glossary
neuroplasticity (noun)
The brain's ability to reorganize its structure and function in response to learning or experience. In 2004, researcher Andrea Mechelli demonstrated this process by showing structural changes in bilingual brains.
The brain's ability to reorganize its structure and function in response to learning or experience. In 2004, researcher Andrea Mechelli demonstrated this process by showing structural changes in bilingual brains.
Quiz
Intensive language learning in adults has been shown to cause physical growth in which memory-focused brain structure?
Quiz
What scientific term describes the brain's ability to physically reorganize and change its structure throughout life?