Test 3 Flashcards
Spastic dysarthria
- combined effects of weakness and spasticity
- problem of neuromuscular execution
- combined with spastic paralysis
- pseudobulbar palsy
- 7% of MSDs
Neurobasis of spastic dysarthria
Damage to pyramidal at first (weakness) , then extrapyramidal systems starts to show (hyperreflexia, spasticity in velar muscles)
Specific damage to pyramidal system
Loss of fine movement, weakness, absent abdominal reflexes
Specific Extrapyramidal damage symptoms
- increased muscle tone
- spasticity
- clonus
- decorticate posture
- hyperactive stretch reflex
- babinski sign
- hyperactive gag reflex
Confirmatory signs of spastic dysarthria
Spasticity, weakness, pseudobulbar affect, pathological reflexes, hyperactive stretch reflex, clonus
Speech subsystems affected
Manifests in any or all of respiratory, phonatory, resonatory, prosodic and articulatory components of speech
Spastic dysarthria rate, range, force, tone
Rate: slow
Range: reduced
Force: recused
Tone: excessive
Perceptual characteristics
Low pitch, slow rate, strained-strangled voice quality
Spastic dysarthria locus and primary deficit
Locus: upper motor neuron
Deficit: spasticity
Articulation symptoms with spastic dysarthria
Imprecise consonant production, vowel distortion
Phonation symptoms with spastic dysarthria
Harsh vocal quality, strained-strangled voice, low pitch
Resonance symptoms with spastic dysarthria
Hypernasality without nasal emission
Prosody symptoms with spastic dysarthria
Mono loudness, mono pitch, short phrases, slow rate of speech
Patient complaints with spastic dysarthria
Slow, effort full speech Fatigue with speaking Swallowing complaints Hypernasality Hyperactive gag reflex Drooling Pseudobulbar affect
Assessment task findings for spastic dysarthria
Slow speech AMRs, mono loudness/pitch in conversational speech, vowel prolongation
Etiology of spastic dysarthria
Anything that damages upper motor neuron system bilaterally, degenerative diseases being most common
Other etiologies of spastic dysarthria
Stroke, TBI, brainstem tumor, cerebral anoxia, viral or bacterial infection
Phonation deficit treatments for spastic dysarthria
- head and neck relaxation
- easy onsets
Articulation deficit treatments for spastic dysarthria
Tongue and lip stretching, intelligibility drills, phonetic placement, exaggerating consonants, minimal contrasts
Prosody deficit treatments for spastic dysarthria
Pitch range exercises, intonation profiles, contrastive stress drills, chunking utterances into syntactic units
Resonance deficit treatments for spastic dysarthria
Surgical and prosthetic treatment, increase loudness, mirror for visual feedback
Neurological basis of UUMN
Often think of UUMN dysarthria as specifically damage to lower face/tongue but some bilaterally innervated speech structures also show effects
Clinical characteristics/confirmatory signs of UUMN
Hemiparesis/plegia
Unilateral central face weakness
Unilateral central tongue weakness
Speech subsystems affected by UUMN
Mainly articulation, because of weakness