But many times they are organic in nature, meaning that there is a known cause of the speech sound errors, such as a cleft palate or a hearing impairment. Whether or not speech disorders are related specifically to ASD, their presence adds an additional communication and social barrier and should be diagnosed and treated as early as possible in individual children. Nondevelopmental phonological processes can be a functional speech sound disorder, which has no known cause. Non-developmental distortions occurred relatively frequently in the children with ASD and previous studies of adolescents and adults with ASDs shows similar errors, suggesting that they do not resolve over time. Consonantal errors: Articulatory errors were classified in terms of those involving consonants and those involving vowels and diphthongs. ![]() The speech of children with ASD was characterized by mainly developmental phonological processes (gliding, cluster reduction and final consonant deletion most frequently), but non-developmental error types (such as phoneme specific nasal emission and initial consonant deletion) were found both in children identified as performing below the normal range in the standardized speech test and in those who performed within the normal range. Overall 41% of the group produced at least some speech errors. Although all the other children had standard scores within the normal range, a sizeable proportion (33% of those with normal standard scores) presented with a small number of errors. Conclusions: Developmental and non-developmental phonological processes persist in the speech of children with mild to profound hearing loss compared to. They do this because they lack the ability to appropriately coordinate their lips, tongue, teeth, palate and jaw for clear speech. ![]() However, it is possible for a word to be processed through a non-lexical route. Typical Phonological Process Development Substitution Processes - when one class of sounds is replaced for another class of sounds. On a standardized test of articulation, the minority (12%) of participants presented with standard scores below the normal range, indicating a speech delay/disorder. Phonological processes: patterns of sound errors that typically developing children use to simplify speech as they are learning to talk. population for problems with phonological awareness and the development. Participants were 69 children aged 5-13 years 30 had high functioning autism and 39 had Asperger syndrome. ![]() This study involved a qualitative analysis of speech errors in children with autism spectrum disorders (ASDs). Second, since nondevelopmental error patterns do not occur in typical speech production development, there is not a readily predicted time or developmental course for their resolution, as may be.
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