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Can background noise hinder a toddler’s ability to learn new words?

little boy laughing surrounded by letters

Key points:

1. Excessive background noise at home or school can hinder toddlers’ ability to learn new words.

2. Research by Brianna McMillan and Jenny Saffran indicates that environmental noise affects how and what toddlers learn.

3. Too much noise can have cognitive and physiological effects on children, negatively impacting school performance and stress levels.

4. Providing cues in noisy environments can help toddlers compensate and learn, making it important for parents and teachers to reduce noise or highlight essential information.

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Does your toddler find it hard to learn new words? Have you observed the environment they are exposed to when they learn? A study found that too much background noise (TV, people talking, or traffic) at home or school can make it difficult for toddlers to learn new words.

Studying the effects of background noise

Researchers Brianna McMillan and Jenny Saffran, from the University of Wisconsin-Madison, led a study about background noise that was published in the journal Child Development. It consisted of three experiments in which 106 children between 22 and 30 months old took part. In the study, the toddlers were taught the names of unfamiliar objects and then tested on their ability to recognize the objects when they were labeled. To understand how different levels of background noise affected the toddlers’ ability to learn, the team repeated the experiment with different amounts of background noise.

“Learning new words is an important skill that provides a foundation for children’s ability to succeed academically,” said Brianna McMillan, a doctoral student at the University of Wisconsin-Madison and lead author of the study.

The study revealed that the environment your little one is surrounded by impacts what and how they learn. When your toddler is surrounded by a lot of stimuli, it becomes very hard for them to know what to focus on and what to ignore. As parents, we all want the best for our kids, and that includes giving them a peaceful and safe environment in which they can learn. However, some parents may be affecting their children’s language development without even realizing it.

In fact, previous studies have shown that too much noise can affect children cognitively and physiologically resulting in more negative school performance, higher levels of the stress hormone cortisol, and increased heart rates.

However, while we know that louder background noise hinders a toddlers’ ability to learn words, providing cues in the environment helps them overcome this difficulty! “When the environment is noisy, drawing young children’s attention to the sounds of the new word may help them compensate,” noted co-author, Jenny Saffran. Given that children will rarely be in a completely quiet environment when learning, parents and teachers can reduce background noise or highlight important information to help children learn, even when there is background noise.

As a final note, while limiting background noise can be helpful, you should not try to raise your kids in a completely silent environment. A study published in 2016 suggested that introduction to positive noise, such as giving kids a musical toy, can be surprisingly beneficial not just in enriching babies’ language experience, but also in their learning. 

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