Ch. 11- Apraxia of Speech Flashcards
What is apraxia of speech?
A problem with the motor programming of speech movements. Muscles are ok.
What is dysarthria?
A problem with muscles/movements.
What is aphasia?
Linguistic/language problems
Apraxia usually occurs with…
aphasia, but sometimes dysarthria
Oral or limb apraxia can co- occur with…
apraxia of speech
Apraxia of speech is almost always due to damage in which hemisphere?
left cerebral hemi
What is Step 1 in speaking?
Speaker conceptualizes what is going to be said. This is where the message is determined.
What is step 2 in speaking?
Speaker formulates the message through selecting semantic, syntactic, morphological, phonological structures for the message.
What is step 3 in speaking?
The motor speech programmer programs the movementsnecessary to produce the needed phonemes. It activates a plan for the motor execution needed.
What is step 4 in speaking?
This program is sent to through the nervous system to produce muscle movement/motor execution.
If difficulties occur in step 2 of speaking, what may occur?
The result may be aphasia
If difficulties occur in step 3 of speaking, what may the result be?
The result may be apraxia
If difficulties occur in step 4 of speaking, what may the result be?
The result may be dysarthria
What is AOS also known as?
speech apraxia and oral verbal apraxia
What can AOS be compared to?
Brocas aphasia
Why is AOS sometimes confused with Brocas?
Because the phonologic impairment seen in Brocas aphasia may be similar to AOS. The patient should be evaluated for both.
T/F: Brocas may include AOS?
True, but Brocas involves more
Individuals do not have what problems that Brocas aphasics have?
linguistic problems
Do Brocas and AOS have similar sites of lesion?
Yes
Speech problems that Brocas aphasics have can be due to what?
MSP problems
What is Motor Speech Programmer (MSP)?
It’s responsible for programming speech. It transforms the abstract phonemes to a neural code. The neural code determines the specific muscle movements.
What 6 things can some of the specifics of the programming possibly include?
- Duration of mvmt
- Amplitude of mvmt
- Acceleration
- Deceleration
- Time to peak velocity
- Timing of speech events
What does pre planning allow us to do?
have rapid speech
Where are the structures of the MSP primarily located?
parietal frontal lobe and related subcortical circuits