Articulation and Phonological Disorders

speech 08 tnWhat are some signs of an articulation disorder?

  • An articulation disorder involves problems making sounds. Sounds can be substituted, left off, added or changed. These errors may make it hard for people to understand you.
  • Young children often make speech errors. For instance, many young children sound like they are making a "w" sound for an "r" sound (e.g., "wabbit" for "rabbit") or may leave sounds out of words, such as "nana" for "banana." The child may have an articulation disorder if these errors continue past the expected age.
  • Not all sound substitutions and omissions are speech errors. Instead, they may be related to a feature of a dialect or accent. For example, speakers of African American Vernacular English (AAVE) may use a "d" sound for a "th" sound (e.g., "dis" for "this"). This is not a speech sound disorder, but rather one of the phonological features of AAVE.

What are some signs of a phonological disorder?

  • A phonological process disorder involves patterns of sound errors. For example, substituting all sounds made in the back of the mouth like "k" and "g" for those in the front of the mouth like "t" and "d" (e.g., saying "tup" for "cup" or "das" for "gas").
  • Another rule of speech is that some words start with two consonants, such as broken or spoon. When children don't follow this rule and say only one of the sounds ("boken" for broken or "poon" for spoon), it is more difficult for the listener to understand the child. While it is common for young children learning speech to leave one of the sounds out of the word, it is not expected as a child gets older. If a child continues to demonstrate such cluster reduction, he or she may have a phonological process disorder.

How are speech sound disorders diagnosed?

A speech-language pathologist (SLP) is the professional that evaluates children or adults with speech and language difficulties. The SLP listens to the person and may use a formal articulation test to record sound errors. An oral mechanism examination is also done to determine whether the muscles of the mouth are working correctly. The SLP may recommend speech treatment if the sound is not appropriate for the child's age or if it is not a feature of a dialect or accent. For children, the SLP often also evaluates their language development to determine overall communication functioning.

What treatments are available for people with phonological and speech disorders?

SLPs provide treatment to improve articulation of individual sounds or reduce errors in production of sound patterns.

Articulation treatment may involve demonstrating how to produce the sound correctly, learning to recognize which sounds are correct and incorrect, and practicing sounds in different words. Phonological process treatment may involve teaching the rules of speech to individuals to help them say words correctly.

(As adopted by the American Speech Hearing Association ww.asha.org)

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