Unit 3 Flashcards
What are speech sound disorders?
Include difficulties with producing certain sounds (articulation), with the patterns of language (phonological), and/or with oral-motor planning (apraxia).
What is phonology
Study of how sounds are organized
Study of sound system of a given language
Phonology is related to all other aspects of language (phonetics, pragmatics, morphology, syntax, and semantics)
Phonological development
The way sounds are stored in our brains
The way sounds are produced
The rules/processes that bridge the way the sounds are stored and the way they are produced
Intelligibility
By 18 months a child’s speech is normally 25% intelligible
By 24 months a child’s speech is normally 50 -75% intelligible
By 36 months a child’s speech is normally 75-100% intelligible
Phonological disorder (phonemic disorder)
A language disorder that affects a speaker’s production and/or mental representation of speech sounds of target language
Same errors over and over is a big indicator for if it’s a phonological disorder versus apraxia
Articulation disorders
A speech disorder that affects the individual’s ability to produce certain sounds (phonetic disorder)
Cause may be underlying muscle weakness/dysarthria
Cause may also be unknown=functional articulation disorder
Ex: otitis media when infant, maybe didn’t learn certain sounds and cant produce them
Someone can have multiple articulation disorders and still have an artic disorder, not phonological disorder but may be as unintelligible
Apraxia of speech
Motor planning disorder
Characterized by:
- difficulty imitating speech sounds
- difficulty imitating non-speech movements (oral apraxia), such as sticking out their tongue
- groping (see people trying to find the sound) when trying to produce sounds
- in severe cases, an inability to produce sound at all
- inconsistent errors
- slow rate of speech
- somewhat preserved ability to produce “automatic speech” (rote speech), such as greetings like “How are you?”
Speech sound disorder about motor planning
No underlying muscle weakness, or nerve damage, or paralysis
Apraxia - Sensorimotor Speech Disorder
Differential Diagnosis:
articulatory struggle
errors increase with length of stimuli words
errors inconsistent
Dysarthria
- A motor speech disorder
- Associated with paralysis, paresis or in-coordination, slowness or sensory loss of speech musculature
- Generic label for group of disorders
- Effects muscle groups involved in respiration, phonation, articulation and resonation
- Damage may be peripheral or central nervous system
Dimensions of Dysarthria (1)
Phonation Pitch 1. Pitch level 2. Pitch breaks 3. Monopitch 4. Voice tremor
Intensity
1. Monoloudness 2. Excess loudness variation 3. Loudness decay 4. Alternating loudness 5. Loudness (overall)
Quality
- Harsh voice
- Hoarse (wet) voice
- Breathy voice (continuous)
- Breathy voice (transient)
- Strained/strangled voice
- Voice stoppages
Dimensions of Dysarthria (2)
Resonation
- Hypernasality
- Hyponasality
- Nasal emission
Respiration
- Forced inspiration/expiration
- Audible inspiration
- Grunt at end of expiration
Articulation
- Imprecise consonants
- Phonemes prolonged
- Irregular articulatory breakdown
- Phonemes repeated Vowels distorted
- Intelligibility
Dimensions of Dysarthria (3)
Prosody
- Rate
- Phrases short
- Increase of rate in rate overall
- Reduced stress
- Variable rate
- Intervals prolonged
- Inappropriate silences
- Short rushes of speech
- Excess and equal stress
Intensity can be increased by
- increasing number of sessions
- eliciting greater number of responses
- can be accomplished by using clickers/counters
- engaging students by keeping a fast pace and a stronger routine.
Speech Sound Disorders: Treatment Considerations
Need to consider service delivery models:
Need to create the most efficient model based on individual clients and SLP roles/responsibilities
Group and individual services
Push-in services
Pull-out/”push away” services
Number of sessions per week/day
Itinerant services
The cycles approach
This approach derived from developmental phonology
Each cycle is based on number of error patterns and stimulability
Typically, each error pattern is targeted from two-five hours per cycle
Phoneme or cluster is targeted for one hour per week (one 60 minute session or two 30 minute sessions)