Language disorders can include difficulty understanding language, following directions or choosing appropriate words and combining them correctly in sentences. Language disorders can affect a child’s ability to interact with others and to learn. Some characteristics of a language disorder at different ages include:
Difficulty producing individual sounds. As a result, a child may substitute an easy sound for a harder one (e.g., “tun” for sun), omit sounds (e.g., “ool” for school) or distort sounds (e.g., “shlun” for sun). In some cases (e.g., apraxia of speech), a child may have difficulty combining the movements of speech sounds in sequences, as required for words and sentences. Articulation errors often make speech very hard to understand. Some characteristics of an articulation disorder at different ages include:
Frequent abnormal disruptions in the flow of speech. Characteristics of a fluency disorder include:
Resonance disorders can include velopharyngeal dysfunction, a problem with the valve that closes off the nose from the mouth during speech, or blockage in the nose, throat or back of the mouth. Types of resonance disorders include:
Either abnormal vocal cord structure or abnormal function. Characteristics of a voice disorder include: