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The condition is a communication disorder in which there are difficulties with verbal and written expression. [1] It is a specific language impairment characterized by an ability to use expressive spoken language that is markedly below the appropriate level for the mental age, but with a language comprehension that is within normal limits. [2]
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.
A speech sound disorder (SSD) is a speech disorder affecting the ability to pronounce speech sounds, which includes speech articulation disorders and phonemic disorders, the latter referring to some sounds not being produced or used correctly. The term "protracted phonological development" is sometimes preferred when describing children's ...
A language disorder is an impairment in the ability to understand and/or use words in context, both verbally and nonverbally. Some characteristics of language disorders include improper use of words and their meanings, inability to express ideas, inappropriate grammatical patterns, reduced vocabulary and inability to follow directions. One or a ...
CAS may occur as a result of known neurological impairment, in association with complex neurobehavioral disorders of known or unknown origin, or as an idiopathic neurogenic speech sound disorder. The core impairment in planning and/or programming spatiotemporal parameters of movement sequences results in errors in speech sound production and ...
Features of an expressive language disorder vary, but have certain features in common such as: limited vocabulary, inability to produce complex grammar, and more lexical errors. If it is a developmental disorder, the child will have difficulty acquiring new words and grammatical structures.
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. Twin studies have shown that it is under genetic ...
Stuttering – a speech disorder characterized by a break in fluency, where sounds, syllables, or words may be repeated or prolonged. [10] Phonological disorder – a speech sound disorder characterized by problems in making patterns of sound errors (e.g., "dat" for "that").