Motor Speech Disorders (Intro and Anatomy Review) Flashcards
What are the 5 stages of speech production?
- conceptualization
- linguistic planning
- motor planning
- performance
- feedback
What are the 4 speech subsystems?
respiratory
phonatory
resonatory
articulation
What is a motor speech disorder? and what do MSDs include
speech disorders resulting from neurological impairments affecting planning, programming, control or execution of speech
- apraxia and dysarthria
Compare and contrast: apraxia and dysarthria (results from, a problem with, characteristics)
A:
- results from difficulty planning and sequencing sensorimotor commands
- motor planning, muscles are intact
- groping
D:
- results from change in muscle movements
- motor execution
- affects many subsystems of speech
What causes MSDs? (6)
- stoke
- TBI
- Parkinson’s disease
- ALS
- MS
- Myasthenia gravis
can be recuperative or degenerative
What is parkinson’s disease? Is there a cure?
- degenerative condition affecting the motor system (basal ganglia)
- NO cure (treated-Ldopa), can lead to dysarthria or dysphagia
What are the symptoms of Parkinson’s disease?
- rigidity
- tremor
- slow movement
- postural instability
What is Amyotrophic Lateral Sclerosis?
- aka Lou Gehrig’s disease
- degeneration of neurons leads to gradual muscles weakness and atrophy
- difficulty swallowing and speaking
What is Multiple sclerosis?
- auto immune disease affecting the myelin sheath that covers the axons of neurons
- variation how it impacts everyone
- lead to numbness, weakness
- may cause dysarthria
What are the three types of motor speech therapy?
- restorative treatment (make impairment better)
- compensatory treatment (compensate for changes (prothesis, behav compensation))
- AAC
How is dysarthria often treated?
which speech subsystem is most impaired (respiration, phonation, velopharyngeal function, artic)
What is motor learning?
- includes acqusitiion of new motor patterns and retention of patterns over time
What are the 4 stages of motor learning?
- Acquisition phase
- Automatization phase
- Retention phase (transfer)
- Generalization
What do we need to make sure of in order to have a positive change in the clients everyday life?
- make sure that motor speech therapy should have an impact at the activity or participation level of ICF
In neuroanatomy, what are the two systems we talk about?
central NS
peripheral NS
In the central NS what are the cortical areas?
- primary motor cortex
- primary sensory cortex
- premotor cortex
- supplementary motor area
What does the primary motor cortex do?
- controls voluntary motor movements on the opposite side of body
- direct activation pathway
- somatotopically organized
What is the premotor area?
- input from multiple sensory modalities
- uses sensory info to guide motor behaviours
What does the supplementary motor area do ?
- contributes to planning, initiation, inhibition
- maintain complex movements
What is the somatosensory cortex?
- gives knowledge about where speech structures are and the movement velocity
- get feedback
What is the cerebellums role?
- timing, scaling, and coordination of movement
What does the basal ganglia do?
- modulatory effect on movement
- role in movement initiation/selection
- procedural learning
In the peripheral nervous system, what are the 5 different cranial nerves
V- trigeminal VII- facial IX- glossopharyngeal X- vagus XII- hypoglossal
TRIGEMINAL
S, M or B?
functions?
What if it was affected?
- both
- S: facial sensation, anterior tongue
- M: mastication, tensor veli palantini
- difficulty opening and closing, sensation in face
FACIAL
S, M or B?
functions?
What if it was affected?
- both
- S: taste of anterior tongue, glands
- M: facial expression
- face droop, expression, taste, smile
GLOSSOPHARYNGEAL
S, M or B?
functions?
What if it was affected?
- both
- S: taste, pharynx
- M: stylopharyneus
- speech is not affected?
VAGUS
S, M or B?
functions?
What if it was affected?
- both
- S: sensation of larynx, pharynx
- M: levatorveli palantini, laryngeal muscles
- soft pallet not moving, nasality, voicing
HYPOGLOSSAL
S, M or B?
functions?
What if it was affected?
- motor
- M: intrinsic and extrinsic muscles of tongue
- tongue sticks out to one side
What happens when your spinal nerves are affected?
- control breathing
- damage to diaphragm
- need breathe support