2nd Exam Flashcards
Types of dysarthria
- flaccid
- spastic
- ataxic
- hypokinetic
- hyperkinetic
- unilateral upper motor neuron
- mixed
types of motor speech disorder
- Apraxia of speech
2. Dysarthria
Flaccid dysarthria
lesion location?
impairment of the final common pathway (LMN pathway).
nuclei, axons, or neuromuscular junctions of cranial/spinal nerves
Flaccid dysarthria
- impairment affects:
- muscle strength.
- muscle tone.
- speed, range, and accuracy of movements.
- may affect only one muscle group.
- may affect only one speech subgroup.
flaccid dysarthria
- clinical characteristics
- weakness
- hypotonia
- diminished reflexes
- fasciculations
- atrophy
- progressive weakness with use.
flaccid dysarthria
- etiologies
- trauma
- degenerative diseases: ALS and Progressive bulbar palsy.
- muscular disease
- neuromuscular junction diseases: Myasthenia Gravis and botulinium toxin exposure.
- Brainstem stroke.
- demyelinating diseases: Guillain-Barre, Chronic demyelinating polyneuritis.
- infectious diseases: Poliomyelitis and herpes zoster
Spastic Dysarthria
- location of lesion
- bilateral damage to the upper motor neuron system (UMN)
spastic dysarthria due to impairment of direct activation pathway.
- Characteristics -
- loss of fine, discrete movements
- increased muscle tone.
- spasticity (muscles continuously contracted)
- babinski reflex
- pathologic oral reflexes
Spastic Dysarthria Characteristics
due to impairment of indirect activation pathway.
- increase muscle tone.
- spasticity
- hyperreflexia
Clinical characteristics of Spastic Dysarthria
- spasticity
- weakness (especially distal)
- reduced range of movement
- slow movement
Spastic Dysarthria
- etiologies
- vasculature problems (stroke- most likely brainstem stroke. vascular dementia)
- Primary lateral sclerosis (degenerative motor neuron disease)
- corticobulbar and corticospinal signs.
Ataxic Dysarthria
- location of lesion
- damage to cerebellum
Ataxic Dysarthria
- impairments
- coordination
- decreased muscle tone.
- slowness and inaccuracy of movement force, range, timing, direction.
Ataxic dysarthria
- clinical characteristics
- problems with standing and walking
- titubation (rhythmic tremor of body or head)
- nystagmus
- dysmetria
- dysdiadochokinesis
- decomposition of movement
- possible intention tremor.
- cognitive disturbances
Ataxic Dysarthria
- etiologies
- degenerative diseases (hereditary ataxias, multiple sclerosis)
- vascular lesions
- tumors
- trauma
- toxins (drugs and alcohol)
Hypokinetic Dysarthria
- location of lesion
- basal ganglia direct pathway
hypokinetic dysarthria
- impairments
- rigidity
- reduced force
- slow individual movements but sometimes fast repetitive movements.
hypokinetic dysarthria
- clinical characteristics
- resting tremor
- bradykinesia
- intermittent freezing
- pill-rolling movements
- masked facies (hypomimia) - decreased facial expressions.
- reduced arm swing
- micrographic writing
- festation
- impaired sensory functions
general management goals for motor speech disorders
- restore lost function when possible
- promote use of residual function (compensation, modifying aspects of speech, AAC, prosthetics)
- reduce the need for lost function (adjust)
General treatment strategies for MSD
- management goals
- begin treatment ASAP
- consider incorporating principles of motor learning
- provide opportunities for practice
- use drill
- provide instruction
- feedback is essential
- incorporate principles of experience dependent neuroplasticity.
- be cautious of “plateau”
- compensation requires conscious effort.
approaches to management of MSD
- medical (pharmacological or surgical).
- prosthetic
- behavioral management (pt and significant other(s))
- speech management
Dysarthria - VP dysfunction
treatment approaches
- biofeedback
- resistance treatment during speech (CPAP)
- Producing words containing pressure sounds with nares pinched closed.
- modification of speaking
- NO evidence for non-speech oral motor exercises or inhibition techniques.
Dysarthria- Respiratory dysfunction treatment
- postural adjustment
- try to incorporate respiration activities into speech tasks.
- sustaining phonation with feedback
- some non-speech tasks may be beneficial for improving respiratory support.
Dysarthria- phonatory dysfunction
- hypoadduction
- effort closure techniques
- Lee Silverman Voice Treatment (LSVT-LOUD)
- resonant voice exercises
- sirening
LSVT
- think loud and big
- intensive treatment
- used to increase loudness and effort
- must be certified.
- work from short (single words) to longer material
- use objective measure of loudness.
- provide home practice (1hr/day)
- provide lots of trails!! (15/item)
***Good quality “ahhhhh” 15 times - start each session this way!
phonatory dysfunctions-
Resonant Voice Exercises
- m, n, r, j, l
Dysarthria - Articulatory Dysfunction Treatment
- Traditional approaches (phonetic placement, phonetic derivation, integral stimulation).
- rate modification - slowing
- exaggeration of articulation
treatment for AOS
- rate and rhythm control approaches
- contrastive stress drills
- articulatory and kinematic approaches
- intersystematic facilitation/reorganization approaches (gestures and melodic intonation therapy)
- motor learning