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Even though children do not produce their first words until they are approximately 12 months old, the ability to produce speech sounds starts to develop at a much younger age. Stark (1980) distinguishes five stages of early speech development: [16]
The second method can be difficult when considering the differing normative data and other factors that affect typical speech development. Many norms are based on age expectations in which a majority of children of a certain age are accurately producing a sound (75% or 90% depending on the study).
Research has been conducted to determine whether or not infants with impaired hearing can demonstrate typical vocal sounds. Babbling can appear at the same age and in similar forms in hearing and deaf child, however, further continuation of babbling and speech development depends upon the ability for the child to hear themselves.
Babies can recognize their mother's voice from as early as few weeks old. It seems like they have a unique system that is designed to recognize speech sound. Furthermore, they can differentiate between certain speech sounds. A significant first milestone in phonetic development is the babbling stage (around the age of six months).
After the age of ten or twelve, the general functional connections have been established and fixed for the speech cortex." According to the sensitive or critical period models, the age at which a child acquires the ability to use language is a predictor of how well he or she is ultimately able to use language. [90]
The vocal production of speech may be associated with the production of hand gestures that act to enhance the comprehensibility of what is being said. [6] The development of speech production throughout an individual's life starts from an infant's first babble and is transformed into fully developed speech by the age of five. [7]
The researchers found that good reading quality — meaning, having conversations with the child about the book while reading, talking about or labeling the pictures and the emotions of the ...
A typical child should acquire many of the critical components of a language by age three. [18] Children who, when compared with peers their age, are not as competent in language in terms of language processing and speech production or areas related to communication, could possibly be displaying signs of global developmental delay.