Tuesday, April 17, 2012

The term “communication disorder” covers a broad range of disorders that affect speech and language. A communication disorder can be categorized as: an articulation disorder, a fluency disorder, a voice disorder, a language disorder, and/or a phonological disorder. Communication disorders can occur alone or can be a result of another condition, such as autism, brain damage due to birth defects, etc. The link below provides some facts and figures about these types of communication disorders: http://www.rhsc.org/files/communication-disorders.pdf. 

            Today I am going to discuss the communication disorder known as Childhood Apraxia of Speech (CAS). “Childhood Apraxia of Speech is an oral-motor disorder (mouth-movement problem) that causes the child’s speech to be hard to understand. It is usually detected after two years of age, when speech development is noted to be delayed” (Cincinnati Children’s). According to http://testyyettrying.blogspot.com/2011/04/what-is-childhood-apraxia-of-speech-and.html, CAS is “a relatively uncommon neurological disorder caused by problems with motor planning and programming of the movements necessary to produce speech. Children with Childhood Apraxia of Speech do not have a problem with the actual structures and muscles involved in speech production. There is no evidence of weakness in the muscles of the face, jaw, lips, or tongue. Children with CAS also generally do not have problems knowing what they want to say. They can formulate the message in their mind and the muscles are capable of producing speech. The message just doesn't travel from the brain to the mouth properly.”         

            Ultimately, apraxia of speech in the inability to say or “get out” what you want to say, even though you have the ability to form a clear message in your mind and the physical strength and structures to produce sounds/words (lips, tongue, palate, etc.). Usually children with CAS are late talkers who babble infrequently and use one or two sounds for everything, often relying on grunting and pointing for communication. Some characteristics of CAS that SLP’s and families can look for are:  “child makes more errors when attempting to produce longer words or phrases (multi-syllable words or multi-word sentences), child has abnormal prosody (unusual stress patterns, intonation, volume control, and rate issues), errors are inconsistent, if the child says the same multi-syllable word three times it will come out differently each time, child has a reduced number of vowels and demonstrates vowel errors, child has significant difficulty imitating words and phrases, child uses predominantly simple syllable shapes (they substitute shorter, simpler words for longer, more complicated ones)”.

            I can only imagine how frustrating CAS would be for the child and for the family members. Luckily, CAS can be addressed with speech therapy. Some interventions/methods of therapy for CAS include helping children learn new motor skills (movements for speech sounds and words), frequent practice of sounds, and rebuilding of connections from the brain to the mouth. It is important that parents practice these sounds and movements at home with their children as well. Articulation picture cards for one and two syllable words, games, forming and ordering words into sentences, mirror work, and message boards are all things that SLP’s and parents might use to address CAS. 

Additional information and resources for parents can be found at: http://testyyettrying.blogspot.com/p/childhood-apraxia-of-speech-resource.html








4 comments:

  1. Megan,
    I have never heard of CAS before and I enjoyed learning about this communication disorder through your post. If I am understanding this correctly, it seems that a child with this disorder knows in his/her mind what they want to say and how they want it to sound, but it just doesn't come out that way because of how their neurological connections have been programed. Does this mean that once the words or sounds come out of the child's mouth, the child immediately knows that what they want to say or how they want to sound is not being reflected through their speech? If so, I also can't imagine how frustrating this would be. A few months ago, I was standing in line at the grocery store and there was a woman in front of me checking out. She explained to the cashier that she had just had a stroke and was very sorry but it would take a while for her to give the cashier her credit card. At first I was confused, but then I realized through her actions and how she was explaining her situation to the cashier that she had to first THINK about getting her credit card and then THINK to give the cashier her credit card and finally she had to THINK to let go of the credit card so that the cashier could take it. After each step of handing the cashier her credit card, she would pause for a few seconds and it was very obvious that she was thinking and "telling" her hand to let go of the card. Her brain was no longer able to automatically do the simplest things that she had been doing her whole life without giving one thought to. The woman was clearly embarassed and apologized several times. I felt very bad for her and assured her that it was no problem. If this grown woman was so embarassed by her neurological disorder, I can't imagine how young children feel with a speech disorder, especially around their peers. I never gave much thought to speech disorders because I thought that they were easy to overcome. However, after reading this I will give much more thought to the students who have speech disorders and will do my best to ensure they get the help they need and deserve.
    -Megan

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  2. Hi Megan, My sister recently had a few strokes and it is amazing and very sad how even the simplest things become so difficult. I think we really take for granted all the things we can do without paying much conscious attention to them or really thinking about each step in each process. Once those neural connections are damaged it takes a LONG time to create new ones. In the case of CAS, the children do know what they want to say and how it should sound, they just have great difficulty controlling their oral movements (lips, tongues, etc.) to make the correct sounds for the words they want because the information is jumbled from their brains to their mouths. It is incredibly frustrating, but just as with stroke recovery, repeated practice and intensive therapy (in this case, speech therapy and practice of sounds/oral-movements) can create and strengthen neural connections and lead to improved speech and clarity.

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  3. What are you finding out about how the family members might extend the therapy in the home?

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  4. Hi Dr. Carr,
    Family members play an important role in the therapy and development of children with communication disorders. Parents and family members can extend the therapy at home by encouraging and helping the child practice his/her sounds and oral-motor movements for a few minutes each day. For example, family members can model the sound and mouth movement for the child, engage the child in conversations that use the target sounds, read books with the target sounds, play games that encourage the use of the sounds or words, etc. The more children with communication disorders talk and experience speech the more they benefit. Being supportive, talking to and with your child, and practicing the sounds and oral-motor movements frequently at home is the best thing that family members can do. Often times SLP's suggest specific activities to do at home as well.

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