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Articulation disorder; Developmental articulation disorder; Speech distortion; Sound distortion
Phonological disorder is a type of speech disorder known as an articulation disorder.
Children with phonological disorder do not use some or all of the speech sounds expected for their age group.
This disorder is more common in boys. About 3% of preschool children and 2% of children ages 6 - 7 have the disorder.
The cause of phonological disorder in children is often unknown. Close relatives may have had speech and language problems. Other risk factors may include poverty and coming from a large family.
Phonologic disorders may also be caused by:
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Lyon GR, Shaywitz SE, Shaywitz BA. Specific language and learning disabilities. In: Kliegman RM, Behrman RE, Jenson HB, Stanton BF, eds. Nelson Textbook of Pediatrics. 18th ed. Philadelphia, Pa: Saunders Elsevier;2007:chap 32.
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