With speech disorders, a person has trouble in producing speech. An articulation disorder is when a child has a problem making the sounds necessary for speech. Stuttering or a lisp would be an example of this type of disorder. Some people have problems pronouncing certain sounds like l or r.
A phonological disorder, also a speech disorder, is a bit more complicated. In this case, the person is capable of making all of the sounds, but their speech is still not easily understood. People with this type of disorder may have a voice that sounds very different, speak very, very softly or at a high pitch.
A language disorder is when a person cannot understand and/or communicate with other people. It is usually assumed that this is due to some type of neurological problem, but the cause may be unknown. People with language disorders may have trouble matching a word with its meaning, be unable to create sentences, be unable to comprehend what another person is saying or be unable to express themselves through language. They may have a limited vocabulary as well. It is not unusual for people with a language disorder to have more than one of these symptoms.
Language disorders can arise at many points in the language production process such as:
- from damage to the part of the brain that produces language
- from damage to the part of the brain that understands language
- from hearing loss
- from damage to the muscles and tissues of the mouth and throat needed for speech (e.g. cleft palate )
- from neurological disorders that interrupt the transmission of information necessary to receive and produce language
- from unknown (idiopathic) causes
- slow acquisition of speech and language
- inability to make the physical sounds associated with language production (mutism)
- failure to make sense of spoken or written words
- inability to speak under certain social circumstances (selective mutism)
- transformations of words or sounds when speaking
- inability to recall known words
Read more: Language Disorders - symptoms, stages, meaning, average, Definition, Description, Demographics, Causes and symptoms, Diagnosis, Treatment, Prognosis, Prevention http://www.healthofchildren.com/L/Language-Disorders.html#ixzz0htt5Rrlt
