Speech Sound Disorders Flashcards
Sonorant vs obstruent
- Sonorant: sounds that allow for continuous airflow through vocal tract (nasals, liquids, glides)
- Obstruents: sounds that partially or completely block airflow (stops, fricatives, affricates)
Functional parts of the tongue
- Tip/blade
- Dorsum (body)
- Root
Bunched vs retroflex /r/
Retroflex: During production, the tongue forms a diagonal line pointing up towards the roof of the mouth making it easy to explain using hand gestures or imagery.
Bunched: Forms a more unique shape with the tongue, tongue tip is pointed down making it more difficult to explain and consciously execute.
Define speech sound disorder
Difficulty saying the sounds of the native language as compared to peers of same age and language/dialect background
Etiology of SSD (functional vs organic)
Functional: no known cause
Organic: developmental or acquired
- Motor/neurologic (dysarthria, apraxia)
- Structural (cleft palate)
- Sensory/perceptual (hearing impairment)
Articulation vs phonological disorder
Articulation: motoric (production based) in nature; errors are mostly distortions or substitutions
Phonological: linguistic in nature (child neutralizes phonological contrasts of language)
Define & describe core features of Childhood Apraxia of Speech
Neurological childhood SSD in which precision and consistency of movements underlying speech are impaired
Core features:
- Inappropriate prosofy
- Lengthened/disrupted transitions between sounds & syllables
- Inconsistent errors on multiple attempts of the same word
What is motor learning?
- Retention or generalization of learning behavior
- Relatively permanent changes
- Occurs over time
What are the 3 stages of therapy?
- Elicitation: stimulability/establish sound in isolation & syllables
- Stablilization: words/phrases, sentences
- Generalization: sentences, connected speech
Types of feedback
Knowledge of performance:
- Feedback on aspects of motor movement (e.g., I saw your lips come together to make the /m/ sound)
- Acquisition
Knowledge of results:
- Feedback on accuracy (e.g., That’s right!)
- Generalization/learning
Strategies for motor acquisition vs learning (feedback frequency, practice amount/variability, target complexity)
Motor acquisition:
- High frequency feedback (90% of trials)
- High frequency, blocked practice: work on skill A for 15 minutes before moving on to skill B
- Constant practice: same target in same context
- Simple responses: early developing sounds, singletons, syllables/words
Motor learning:
- Low frequency feedback (50% of trials)
- Random practice: order of stimuli mixed up throughout session
- Variable practice: target in different contexts
- Complex responses: later deve;oping sounds, clusters, phrases/sentences
What are the components of an SSD evlaution
- Case history
- Hearing screening
- Standardized test
- Speech sample
- Deep testing/stimulability/speech perception of **sounds in error **
- Oral mechanism exam
- Screen other domains (language, phonological awareness, voice, fluency)
What observations should SLP make from assessments (how to assess strengths/weaknesses)?
- Phonetic inventory
- Percent consonants correct
- Most complex syllabe structures
- Prosody
- Error analysis: frequency, typical, age appropriateness, description, facilitating contexts
What information should you collect in the case history?
Language background: dialect, culture, age, language exposure
Medical background: syndromes, developmental concerns, hearing, known structural anomalies
Temperament, social/emotional characteristics
GFTA-3
Goldman Fristoe Test of Articulation (2;0-21;11)
SLP shows clients a series of pictures and asks, “What is this?” Pictures correspond to a list of single words that includes all phonemes in each position (initial, medial, and final.) SLP can also administer the “Sounds in Sentences” subtest to determine the client’s skills it a higher level of linguistic complexity
Types of speech samples
- Naming
- Imitated phrases/sentences
- Reading
Deep testing
Assess a sound in error to determine if there are any facilitating contexts
Stimulability testing
Ability to produce sounds correctly given support
SLP instructs child to:
- Imitate sound in isolation, syllables, words
- Provide phonetic placement cues
Speech perception assessment
Assess if child can categorize phonetic information
- Categorical perception: /s/ vs /th/
- Category goodness: ability to perceitve speech and make judgements about phonetic information
Oral mechanism exam
Assess face, lips, tongue, palate/tonsils, and respiratory support during speech and nonspeech tasks
Tasks:
- Close your lips. Say /mm/ (adequate lip seal)
- Stick your tongue out. Move from side to side. (adequate protrusion & ROM)
- DDK: rapid, steady, accurate
- Say /aa/ for as long as you can (normal duration, pitch/loudness)
AAE considerations
- Word-final cluster reduction (test → tes)
- Vocalization (sister → sista)
- Vocalization of /l/ in post-vocalic cluster (help → hep)
- Deletion of word final nasal (moon → mu)
/t/ → /k/ in /str/ cluster (street → skrit) - Use of f/th and v/th in intervocalic or word-final position (baf, having)
- Use of /d/ for “voiced th” in initial position (that → dat)
- Stopping of /v/ before syllabic nasal (seven → seben)
At the end of a SSD assessment you should be able to:
- Establish if a speech sound disorder is present and if so, the severity
- Differentially diagnose the type of speech problem
- Identify etiological factors or factors that contribute to persistence of the problem
- Identify concomitant issues (language, fluency, voice)
- Consider prognosis, impact on social functioning
- Identify speech targets for intervention (prioritize!)
Using “most knowledge” vs
“least knowledge/complexity”
Use “Most Knowledge” if..
- Child is stimulable & occassionally correct
- Working on early developing sounds
- Targeting singletons, clusters with large sonority differences (/kw/)
Use “Complexity” if…
- Child is not stimulable
- Sound is not produced correctly in any word position
- Working on complex/later developing sounds
- Targeting clusters with small sonority differencs (/sm/, /fr/)
What are 3 goal attack strategies?
Vertical: one target trained to criterion before moving to next
Horizontal: multiple goals assressed in a single session/goals change across sessions
Cycle: each week, (different) single target is address for single session/week