Toddlers Understand Turn-Taking in Conversation, Study Finds

The ability to navigate conversation – knowing when it’s your turn to speak, and when to listen – seems effortless for adults. But this complex social skill begins developing much earlier than previously understood. New research indicates that two-year-olds are already anticipating turn-taking in conversations, using subtle cues in language to predict who will speak next. This finding, published on March 16, 2026, offers a fascinating glimpse into the cognitive processes of very young children and could have implications for understanding developmental language disorders.

Linguistic Clues and Early Prediction

The study, led by linguist Imme Lammertink from the Baby & Child Research Centre at Radboud University in the Netherlands, alongside collaborators from the Max Planck Institute and the University of Chicago, focused on how toddlers process questions. Researchers discovered that children as young as two years old are sensitive to the structure of questions, specifically the use of pronouns like “you” and “I.” They found that toddlers demonstrated a greater anticipation of a turn switch – indicated by looking towards the other conversational partner – when hearing questions containing “you” compared to those with “I.”

This isn’t simply about understanding the meaning of the words themselves. As Lammertink explains, it suggests children are picking up on linguistic cues even without a complete grasp of sentence structure. The researchers used animation to present conversations to the children, carefully tracking their eye movements to determine when they began anticipating a change in speaker. This method allowed for a nuanced understanding of the timing of their predictions.

How Questions Signal a Turn

The difference in anticipation stems from the typical structure of questions. Questions using “you” (“May you put them outside?”) often invite a response from another person, signaling an imminent turn switch. Conversely, questions using “I” (“Shall I leave them outside then?”) are more likely to be self-directed or require a simple affirmation, making a turn switch less probable. Toddlers, it appears, are picking up on this pattern.

This research builds on existing knowledge about the development of conversational skills. Adults constantly predict when others will finish speaking to avoid awkward silences or interruptions. This new study demonstrates that the foundation for this ability is laid much earlier than previously thought. You can find more information about Dr. Lammertink’s work and research interests on the Radboud University website: https://www.ru.nl/en/people/lammertink-i.

Implications for Developmental Language Disorder

Understanding how typically developing children acquire these skills is crucial for identifying potential challenges in children with Developmental Language Disorder (DLD). DLD affects a child’s ability to acquire language, impacting their quality of life. Imme Lammertink’s research also focuses on children with DLD, investigating why some children struggle with language acquisition and what this reveals about the underlying mechanisms of language learning.

A related study, published just days prior to the Radboud University findings, investigated turn-taking in three-year-olds with and without DLD. Researchers at the Max Planck Institute for Psycholinguistics and the University of Chicago found that although both groups used linguistic cues to predict conversational structure, children with DLD were slower in their predictions. https://pubmed.ncbi.nlm.nih.gov/41817305/ This delay, though subtle, may contribute to the turn-taking difficulties sometimes observed in children with DLD. The study highlights the importance of real-time processing of linguistic information for smooth conversation.

What Does Slower Processing Mean?

The research doesn’t suggest that children with DLD *don’t* use linguistic cues; rather, they may process them more slowly. This slower processing could mean they start anticipating a turn switch after the speaker has already finished, rather than while they are still talking. While both groups showed sensitivity to “you” and “I” pronouns, the timing of their anticipatory eye movements differed. This subtle difference could have significant implications for their ability to participate effectively in conversations.

Beyond the Lab: Real-World Conversations

It’s crucial to note that these studies were conducted in controlled laboratory settings, using animations. Real-world conversations are far more complex, involving non-verbal cues, background noise, and a multitude of other factors. Further research is needed to determine how these findings translate to everyday interactions. However, the studies provide a valuable foundation for understanding the cognitive processes involved in early conversational development.

Lammertink’s broader research agenda prioritizes replicability and data transparency, making her work particularly valuable to the scientific community. She makes the data, analysis scripts, and materials from her studies openly available, fostering collaboration and ensuring the rigor of her findings. She also actively engages in outreach, giving lectures and participating in science communication events to raise awareness about DLD and linguistics.

What Comes Next: Continued Investigation and Support

The findings from these studies will likely inform future research into the development of conversational skills in children, both typically developing and those with language disorders. Researchers will continue to investigate the neural mechanisms underlying turn-taking and explore interventions to support children who struggle with this crucial social skill. Ongoing surveillance of language development in early childhood settings will be essential to identify children who may benefit from early intervention. Parents and caregivers can support language development by engaging in frequent, interactive conversations with young children, providing a rich linguistic environment and modeling effective turn-taking strategies.