Because the tonal quality of cooing reflects their caregivers' specific language, babies essentially replicate sounds from their own linguistic environment. For instance, a baby whose parents speak French will coo in a different tone than a baby whose parents speak Spanish or Urdu.

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Cooing is one of the earliest stages of vocal development in infants, typically beginning almost immediately after birth. It involves producing single-syllable sounds that combine a consonant and a vowel, such as 'coo' or 'ba'. Notably, the tonal quality of an infant's cooing can reflect the specific language of their caregivers, indicating very early, pre-babbling exposure to linguistic patterns.

Cooing Stage

Spielman, R. M., Jenkins, W. J., & Lovett, M. D. (2020, April 22). Psychology (2nd ed.). OpenStax. https://openstax.org/books/psychology-2e/pages/1-introduction

OpenStax Psychology (2nd ed.) Textbook

After the first few months of life, infants enter the babbling stage. This phase is characterized by the production of repeated single syllables, which gradually become more varied as time passes. These early vocalizations are not considered attempts to communicate, as babies are just as likely to babble when they are alone as when they are accompanied by caregivers.

Babbling Stage

A developmental psychologist observes a two-month-old infant. The infant is making one-syllable sounds that combine a consonant and a vowel, such as 'goo' and 'ba'. These sounds are not yet repeated in a string (e.g., 'ba-ba-ba'). Based on this specific observation, which stage of vocal development is the infant most likely demonstrating?

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