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Mind

Babies in bilingual homes have distinct brain patterns at 4 months old

Infants aged just 4 months old who live in a home where two languages are spoken have distinct patterns of brain activation compared with infants living in monolingual environments

By Moheb Costandi

12 February 2024

Our early experiences and exposures can shape the rest of our lives

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Babies as young as 4 months old who are born into a bilingual environment show distinct brain patterns related to how they process speech. The findings emphasise how language exposure shapes the brain during early life.

Our early-life experiences are known to influence our neural pathways and can have lifelong effects on our behaviour. The brain is most sensitive to its environment during the first year of life, which is thought to be a critical period for language development.

Previous studies have shown that babies…

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