Talking to young children can help advance brain development, scientists said.
Two-and-a-half-year-olds who heard more speech in everyday life had more myelin – a substance that makes brain signals more efficient – in language-related areas of their brains, researchers from the University of East Anglia (UEA) discovered.
Their findings, published in the Journal of Neuroscience, demonstrate how talking to toddlers help to develop their brains.
“We know that children’s brains develop very rapidly in the first two years of life, with brain volume at about 80 per cent that of an adult brain by the age of two,” lead researcher Prof John Spencer, from UEA’s School of Psychology, said.
“Myelin is made up of protein and fatty substances and forms an insulating layer around nerves in the brain.”
“Imagine you have a hosepipe with lots of holes in it,” he said.
“Myelin is like wrapping the hosepipe with duct tape – it insulates neural fibres, bringing more of the ‘signal’ from one brain area to the next.”
For the study, the researchers gave 163 babies and toddlers small recording devices to wear for three days.
They analysed about 6,000 hours of language data in total, which included words spoken by the children as well as speech from adults.
When the children were asleep, the researchers carefully placed them in an MRI scanner to measure myelin in their brains.
“What we found is that the toddlers who heard more speech in their everyday environment also had more myelin, which is likely to support more sophisticated language processing,” Prof Spencer said.
“In other words — talking to your kids is very important in early development as it helps to shape the brain.”
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The researchers said their study is one of the first to show that listening to speech is associated with brain structure early in development.
“Prior work showed a similar association in four to six-year-olds, but our findings push this association much earlier in development,” Prof Spencer said.
“Indeed, we even found associations between language input and brain structure in six-month-old infants.”
“Although there is still much more to learn about these processes, the message to caregivers is clear – talk to your baby, your toddler, your child,” he said.
“Not only are they listening, but your language input is literally shaping their brains.”
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Want to sound on message about the biggest show on television without actually watching it? Best not to get locked into the labyrinthine tales of revenge and royalty: as Isaac Hempstead Wright put it, all you really need to know from now on is that there’s going to be a huge fight between humans and the armies of undead White Walkers.
The season ended with a dragon captured by the Night King blowing apart the huge wall of ice that separates the human world from its less appealing counterpart. Not that some of the humans in Westeros have been particularly appealing, either.
Anyway, the White Walkers are now free to cause any kind of havoc they wish, and as Liam Cunningham told us: “Westeros may be zombie land after the Night King has finished.” If the various human factions don’t put aside their differences in season 8, we could be looking at The Walking Dead: The Medieval Years.
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The internal combustion engine is facing a watershed moment – major manufacturer Volvo is to stop producing petroleum-powered vehicles by 2021 and countries in Europe, including the UK, have vowed to ban their sale before 2040. The National takes a look at the story of one of the most successful technologies of the last 100 years and how it has impacted life in the UAE.
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