Counting to 5 reveals how children's 'inner speech' develops
Even when we are not speaking aloud, we often talk to ourselves in our heads, using language to guide our thoughts and actions. This is known as "inner speech" and is involved in cognitive functions such as attention and self-control. However, studying how inner speech develops is challenging, particularly in young children, who may not yet be able to clearly describe what is happening in their…
Researchers at the University of Tsukuba discovered that young children's internal speech, known as "inner speech," develops in a specific way. They created a mental counting task for kids aged 3 to 6 and adults, where participants counted from 1 to 5 five times aloud and silently, aiming for the same pace throughout the trials.
The key finding was that silent counting became more consistent with age, while counting aloud did not show the same pattern. This suggests that the developmental change in inner speech is not just due to improved counting skills.
Furthermore, older children were more likely to be able to count entirely in their minds without speaking or using gestures. This ability became more stable around age 5. Interestingly, children's explicit understanding of the concept of using words in their heads was unrelated to their performance on the mental counting task. This indicates that children might be able to use language internally even before they can explicitly recognize or describe this ability.
The simplicity of the counting task allowed researchers to observe developmental changes in inner speech without needing specialized equipment or complex procedures. This method provides a new way to study how inner speech develops during early childhood.
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