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Many observations suggest a genetic cause of DVD, as many with the disorder have a family history of communication disorders. [ 1 ] [ 3 ] [ 4 ] [ 5 ] The gene FOXP2 has been implicated in many studies of the condition, and when this is the cause, the condition is inherited in an autosomal dominant manner, however roughly 75% of these cases are ...
Gleason (2001) defines a communication disorder as a speech and language disorder which refers to problems in communication and in related areas such as oral motor function. The delays and disorders can range from simple sound substitution to the inability to understand or use one's native language. [ 3 ]
Social workers obtain literacy history from the home, and then observe the child during classroom activities, they look for social interactions. Psychologists review a child's phonological memory by having him or her repeat series of words, numbers, letters, and sounds. They also look for response from the child to environmental and social factors.
Another source has estimated that communication disorders—a larger category, which also includes hearing disorders—affect one of every 10 people in the United States. [ 13 ] ASHA has cited that 24.1% of children in school in the fall of 2003 received services for speech or language disorders—this amounts to a total of 1,460,583 children ...
The current view is that the disorder has more to do with communication and information processing than language. For example, children with semantic-pragmatic disorder will often fail to grasp the central meaning or saliency of events. This then leads to an excessive preference for routine and "sameness" (seen in autism spectrum disorder ...
Specific language impairment (SLI) is diagnosed when a child's language does not develop normally and the difficulties cannot be accounted for by generally slow development, physical abnormality of the speech apparatus, autism spectrum disorder, apraxia, acquired brain damage or hearing loss.
Mixed receptive-expressive language disorder (DSM-IV 315.32) [1] is a communication disorder in which both the receptive and expressive areas of communication may be affected in any degree, from mild to severe. [2] Children with this disorder have difficulty understanding words and sentences.
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