Study Guide Flashcards
What anatomical structures and features affect the acquisition and production of speech sounds?
moveable and immoveable articulators
What are the moveable articulators?
- jaw
- lips
- tongue
- velum
- uvula
What does the Jaw help facilitate?
resonance and articulation
What are the immoveable articulators?
- hard palate
- alveolar ridge
- teeth
What are lips important for the production of?
bilabials
What is the most vital articulator for the production of the majority of English sounds?
tongue
What is the progression of speech sound acquisition?
- reflexive to purposeful
- undifferentiated to differentiated
How does speech develop from undifferentiated to differentiated?
- open to CV word structures
- variegated CV combination
- Closed CVC word structures
- connected speech
Why are infants early productions restricted to phonemes produced primarily by the jaw?
because they rely on jaw movement due to limited control of lips and tongue
what does the production of full range of English sounds (consonants & vowels) require?
lower lip and tongue movements independent of the underlying jaw
What are the implications of structural deficits and poor oral motor control?
- constrained speech sound acquisition (infants and children)
- articulatory errors
- reduced intelligibility
- restricted verbal communication skills
What type of speech errors would you expect with malocclusions?
- the implications vary per case
- some can develop compensatory strategies
- articulation disorders
What type of speech errors would you expect with cleft lip and/or palate?
-surgery completed within first two years to close fissure without permanent effects on articulation
What type of speech errors would you expect with ankyloglossia?
-limits tongue tip mobility so it compromises speech sound production
What type of speech errors would you expect with a submucosa cleft?
?? can’t find this in my notes, but it’s on the study guide.. ?
What type of speech errors would you expect with velopharyngeal insufficiency?
- nasal emission: air escapes through nasal cavity & unable to build intraoral pressure for the production of oral sounds
- glottal stop: stopping & sudden release of air within glottis for /p,b,t,d/
- pharyngeal stop: pharyngeal contact using base on tongue for /k/ and /g/
- velar fricatives: distorted /k,g/ for sibilants /s, z,ʃ, ʒ/
- mid dorsum palatal stop: /j/ for /t,d,k,g/
What are the possible causes of poor oral motor and speech deficits?
-central and peripheral nervous system damage. (EX: brain injury, neurodegenerative disease, etc.)
- Affects on the neural muscles needed for speech production
(ex: Weakening, paralysis, difficulty with coordination)
what are the etiological factors for Dysarthria?
- stroke
- brain injury
- neurodegenerative diseases
what are the speech and neural characteristics of Dysarthria?
- slurred speech
- slow rate of speech
- breathiness & decreased volume
- abnormal intonation
- decrease control of oral secretions
- difficulty chewing and swallowing
What are the etiological factors for Apraxia of speech?
- acquired: stroke or brain injury to the motor cortex
- developmental: without evidence of neurological damage
What are the speech and neural characteristics of apraxia of speech?
- limited verbal output
- difficulty with volitional oral & speech movements
- automatic speech preserved
- inconsistent sound errors:omissions, deletions, substitutions, distortions
- self corrections
- groping and effortful speech productions
What is the purpose of an oral motor exam?
- it’s a critical component to speech assessments
- measure structural and functional integrity of speech mechanism
What do you assess in terms of FUNCTION during an oral motor exam?
- adequacy of system to produce non-speech and speech related movement
- imitation tasks
- swallowing or feeding
- Diadochokinetic rate (DDK)
What do you observe during an oral motor exam in terms of structure? and what are the particular anatomical parts?
- clinical observation of size, shape, and adequacy of structure.
- teeth & occlusion
- hard and soft palate
- tongue
- face, nose, mouth