Motor Speech Disorders Final Flashcards
Motor Speech Disorders Vary Along a Number of Dimensions
- Age of Onset
- Course of Disorder
- Site of Lesion
- Neurological diagnosis
- Pathophysiology
Classifying Dysarthria Categories
Flaccid
Hypokinetic
Spastic
Hyperkinetic
Ataxic
UMN
(mixed)
Classifying Dysarthria: Etiology and Course
Dysarthria Grouped by Cause/Etiology
- Developmental
- Recovering (stroke)
- Stable (long term post stroke)
- Exacerbating (multiple sclerosis)
Dysarthria Grouped by Course
- Non-progressive
- Chronic
- Degenerative
Nonprogressive Dysarthria
CVS
Hypokinetic Dysarthria is associated with the _____ _______ control circuit
Basal Ganglia
Hypokinetic Dysarthria is most evident in ________, _________, and _________.
Voice, Articulation Prosody
Interconnections Control Circuit 1
- Cortical - crucial cortical input coming from frontal lobe premotor cortex
- Thalamic
- Substantial Nigra
Neurotransmitter imbalance is responsible for many movement disorders associated with ____ ______ control.
Basal Ganglia
Which neurotransmitter is most importantly impacted with Parkinson’s Disease?
Dopamine
Common Non-Speech Characteristics of Hypokinetic Dysarthria?
- Resting Tremor
- Rigidity
- Bradykinesia (appears to have super fast movements)
- Hypokinesia
- Akinesia
- Postural Abnormalities
- Reduced eye blink
- Swallow infrequently (drooling because of this)
- Rapid tremulous jaw and lips
- Flat affect (facial expressions)
Speech Characteristics of Hypokinetic Dysarthria
- Aberrant range or speed of movement
- Deficits are mainly seen in phonatory, articulatory and prosody
- speech movements and timing are generally accurate
- Individual movements are slow
- repetitive movements are fast (tongue and force are reduced)
- Excessive muscle tone
- Reduced ROM maybe more significant in underlying neuromuscular deficit related to speech
What Causes Hypokinetic Dysathria Etiology?
- Extra pyramidal tract degenerative disease
- Vascular conditions usually in the brain
- Toxic-metabolic conditions
- Trauma
- Infectious conditions
What reflexes are lost with Hypokinetic Dysarthria?
Postural Reflexes
Perceptual respiration symptoms of Hypokinetic Dysarthria?
- Decreased breath support resulting in
- short rushes of speech
- decreased loudness
Perceptual phonation symptoms of Hypokinetic Dysarthria?
- Hoarseness
- Breathiness
- Tremor
- Decreased loudness
- Monoloudness
- Monopitch
- Reduced utterance length