BETA
Chapter 1
The superpower of the growing brain
Chapter 2
Learning through play and fearlessness
Chapter 3
The social secret of baby talk
Chapter 4
Unlocking the adult brain's hidden advantages
Ch 3 · The social secret of baby talk
duolingo The Institute for Learning and Brain Sciences connects high pitch, elongated vowels, and exaggerated facial expressions to rapid infant vocabulary growth.
Quiz
Which institute found that using parentese can double a child's vocabulary size by age two?
duolingo Human touch and social presence trigger language learning that digital screens cannot replicate.
Quiz
Which researcher conducted the 2003 experiment comparing live human interaction with video-based language learning?
Quiz
What did American infants in Dr. Kuhl's study learn from watching Mandarin Chinese educational videos?
Fun Fact
Baby talk is global: Parentese is documented across almost every culture on Earth, from English to Mandarin to sign language, where parents use slower, larger signs.
Glossary
parentese (noun)
A simplified, high-pitched, and melodic style of speech used by adults when communicating with infants. University of Washington studies showed this communication style acts as a social catalyst for infant learning.
A simplified, high-pitched, and melodic style of speech used by adults when communicating with infants. University of Washington studies showed this communication style acts as a social catalyst for infant learning.
Quiz
Which university discovered in 2018 that conversational turns are key to stimulating Broca's area?
Quiz
What brain area responsible for speech production is stimulated by conversational turns?