Types of Dysarthria Flashcards
seven major types of dysarthria
- flaccid
- spastic/pseudobulbar
- ataxic
- hypokinetic
- hyperkinetic
- mixed
- unilateral upper motor neuron
what does flaccid dysarthria affect
lower motor neuron pathways and motor units
symptoms of flaccid dysarthria (5)
hypotonia - low muscle tone
slow speech
hypernasality
breathy vocal quality
drooling
what does spastic dysarthria affect?
associated with bilateral disorders of upper motor neuron system
symptoms of spastic dysarthria (4)
muscular hypertonia
strained voice quality
slow speech
monotone voice
another term for spastic dyarthria
pseudobulbar dysarthria
what does ataxic dysarthria affect?
associated with disorders of the cerebellum/cerebellar control circuit.
symptoms of ataxic dysarthria (3)
irregular articulatory errors,
equal and excessive stress on syllables,
inappropriate variation of pitch and loudness.
what is hypokinetic dysarthria caused by?
due to rigidity and bradykinesia resulting from impairment of the basal ganglia control circuit.
symptoms of hypokinetic dysarthria (5)
reduced loudness,
rapidspeech rate,
sound repetitions,
reduced stress.
difficulty initiating speech
what causes hyperkinetic dysarthria
results frominvoluntary movementsassociated with impairment of the basal ganglia control circuit
symptoms of hyperkinetic dysarthria (2)
unpredictable movements of the speech mechanism.
can be fast sounding
what is mixed dysarthria?
various combinations of dysarthria types
what is unilateral upper motor neuron dysarthria caused by?
unilateral damage to the UMNs
symptoms of unilateral UMN dysarthria
hoarse voice,
imprecise articulation,
slow rate
definition of dysarthria
Dysarthriarefers to a group of neurogenic speech disorders characterized by “abnormalities in the strength, speed, range, steadiness, tone, or accuracy of movements required for breathing, phonatory, resonatory, articulatory, or prosodic aspects of speech production”
