A–Z Glossary

Hearing impairment

Hearing loss is reduced ability to hear sounds, which can affect a baby’s listening, speech, and language development.

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Talking to baby for development

Talking to baby for development

Why talking supports early development During the first three years, the nervous system is highly responsive to language input. Babies are learning to discriminate speech sounds, recognize familiar voices, detect patterns in syllables, and associate spoken labels with people, objects, actions, and emotional states. This learning begins before a child can produce recognizable words. Research […]

When babies say first words by month

When babies say first words by month

What counts as a first word? A first word is usually a consistent vocalization that a baby uses intentionally to refer to a person, object, action, or social routine. It does not have to be pronounced clearly. For example, a baby who repeatedly says “ba” while reaching for a bottle may be using an early […]

First Gestures Before Spoken Words

First Gestures Before Spoken Words

Why Gestures Come Before Words Spoken language requires several capacities to coordinate: auditory perception, comprehension, symbolic representation, respiratory and vocal control, and precise oral-motor sequencing. Gestures draw heavily on visual attention, body movement, and social learning, so they may become meaningful before speech is physically and cognitively ready. A baby may understand a request or […]

Baby reacting to sounds explained

Baby reacting to sounds explained

What babies actually do when they hear sound Babies are often described as if they are simply “hearing” a sound, but the observable behavior is usually more nuanced. A newborn may stop moving, blink, widen the eyes, change facial expression, suck more slowly, quiet, or orient the head and eyes toward the sound source. These […]