Signs/symptoms
What is nystagmus?
This abnormal involuntary eye movement is a sign seen specifically with vestibulocerebellum involvement.
Compare stroke and multiple sclerosis in terms of how quickly cerebellar symptoms typically appear.
What is stroke causes sudden, rapid-onset symptoms (minutes to hours), while MS typically causes symptoms that emerge or relapse over a longer, more variable course?
What are the functional regions of the cerebellum
There are three functional regions of the cerebellum: vestibulocerebellum, spinocerebellum, and cerebrocerebellum
What does the cerebellum as a whole do?
Integrates sensory information to ensure smooth and precise movements
Also plays an active role in physical coordination and cognitive functions like language processing and memory
A patient has trouble with balance while brushing their teeth at the sink. This links to dysfunction in this functional region.
What is the vestibulocerebellum?
What is dysmetria?
Characterized by an inability to perform accurate movements; under/over shooting a target
A patient with a cerebellar tumor shows both motor incoordination and noticeable personality/emotional changes. Why
What is that the tumor likely involves the posterior cerebellum, consistent with Cerebellar Cognitive Affective Syndrome, which combines cognitive/emotional changes with cerebellar involvement?
What does the vestibulocerebellum region of the cerebellum do?
What is balance, equilibrium, and eye movements
What is a popular test that helps OTs discriminate cerebellar ataxia from somatosensory ataxia
Romberg test-->cerebellar ataxia: Ataxia remains present
somatosensory ataxia: Ataxia worsens
During a dressing task, a patient overshoots when reaching for a shirt sleeve. Name the sign and the likely region involved.
What is dysmetria, involving the cerebrocerebellum
What does an ataxic gait look like? And what functional region of the cerebellum if likely involved?
What is wide-based, unsteady gait
In the Spinocerebellum region
What is stroke causes sudden, rapid-onset symptoms (minutes to hours), while MS typically causes symptoms that emerge or relapse over a longer, more variable course?
What is a developmental disorder?
What does the spinocerebellum region of the cerebellum do?
What is posture, gait, and coordination of ongoing
movement
The cerebellum helps optimize performance by using experience and this other type of input to continually refine our responses.
Sensory feedback
Why might handwriting be impacted as they struggle to plan the sequence of steps to write a sentence? What functional region
What is the cerebrocerebellum?
A patient's hand tremor gets worse and worse the closer their finger gets to touching their nose.
What is intention tremor?
What is Cerebellar Cognitive Affective Syndrome?
What is cognitive and emotional changes associated particularly
with posterior cerebellar involvement
What does the cerebrocerebellum region of the cerebellum do?
What is planning, timing, and coordination of skilled
movement. Think precise distal voluntary movements
How do cerebellar signs relate to side of the brain and side of the body?
Right cerebellum -->left cerecral cortex--> Right side of the body
Two contralateral relationships=ipsilateral cerebellar signs
A patient is relearning how to walk with a new prosthetic leg, and their gait gradually becomes smoother over several weeks of practice. Name the cerebellar process responsible for this improvement.
What is motor learning?
What is dysdiadochokinesia?
Involves difficulty performing rapid alternating movements, like quickly flipping the hand palm-up/palm-down.
Disorders that can affect the cerebellum
Multiple Sclerosis, CVA, TBI, Developmental/degenerative disorders
Match the clinical clue to the region: "balance plus eyes," "real-time movement correction," and "planning plus skilled movement."
What are vestibulocerebellum, spinocerebellum, and cerebrocerebellum?
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A patient has damage limited to the flocculonodular lobe. Predict which functional region is most affected, what signs you'd expect, and name two daily occupations most likely impacted.
What is the vestibulocerebellum, producing signs like truncal ataxia, unsteady balance, and nystagmus, most likely impacting occupations like transfers/functional mobility and maintaining balance during dressing or bathing?