Conversational Turns Build Brains

Every chat with a child creates countless connections

A woman in a pink shirt smiles as she interacts with a toddler holding a white cup in a colorful playroom filled with toys and shelves. Another child is partially visible on the right.

Children are hungry for connection.

From birth, children are hungry for connection. They need responsive relationships to thrive. Yet, so often, children miss out on these connections in the early years.

It’s been proven that quality adult-child interactions boost language, literacy, social skills, and even IQ scores. They’re the heartbeat of early childhood development.

At LENA, we call these interactions conversational turns. And we’re working towards a world where every child experiences the life-changing power of conversational turns.

What IS a conversational turn?

A conversational turn, also called “serve and return interaction,” is a back-and-forth vocal exchange between an adult and a young child. Specifically, conversational turns involve children aged birth-to-five. 

A smiling man in a pink shirt plays with a baby sitting on a bed, holding a white stuffed animal. The baby faces him, and both appear happy, against a solid blue background.

Caregiver initiates a
conversational turn:
“What’s that toy you’re playing with?” 

A smiling man in a pink shirt plays with a baby sitting on a bed, holding a white stuffed animal. The baby faces him, and both appear happy, against a solid blue background.

Child responds to caregiver to complete the conversational turn:
“Buh-buh!”

A man smiles at a baby sitting on a bed holding his hand, with a stuffed animal beside them and a teal background.

Caregiver responds back to continue the back and forth exchange:
“That’s right, it’s a bear – a teddy bear!” 

Why conversational turns matter ...

It’s simple, but powerful. When you have quality conversations with a child, you’re changing the course of their life. Research shows these simple interactions help with:

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Language development. 

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Social skills.

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Reading skills.

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IQ scores.

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Executive functioning.
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Brain structure and function.

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Increased activation in one area of the brain and increased connectivity between one region and another together suggest that when there’s more conversational turns the whole brain works together better.

– Dr. Rachel Romeo, MIT & Harvard Research Team

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What counts in a conversational turn?

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Coos & babbles from babies

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Mispronounced words from toddlers

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Responsive noises from preverbal children

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Partial or full sentences from preschoolers

Meet LENA

We’re building a better future for children

LENA’s early talk technology is the world’s only validated tool for measuring early language environments. At LENA, we turn the science of measuring conversational turns into action.

Our programs help child care centers, school districts, and families worldwide boost early language development — creating measurable results that transform children’s futures.

Professional Development Program

Ideal for early childhood education organizations

LENA Research

For researchers and institutions

See the latest resources ...

A colorful flyer titled "The 14 Talking Tips" lists ways to encourage talking with children. Speech bubbles in various languages surround the flyer, including Vietnamese, Spanish, Korean, Ukrainian, Hindi, and French.
Tip Sheets

The 14 Talking Tips

The 14 Talking Tips are research-based techniques for increasing conversational turns with children aged 0-5.

A colorful infographic titled "Talking About Emotions" with tips for helping infants, toddlers, and preschoolers understand and manage feelings. Includes website resource and LENA organization info at the bottom.
Tip Sheets

Talking About Emotions

Language and interactions are key to noticing, expressing, and managing feelings and emotions.

Let's Talk

Ready to put conversational turns at the center of your time spent with young children? Whether you’re looking to implement LENA programs, partner with us, or simply learn more, we’d love to connect.

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