Jamir Pitton Rissardo
MD | Neurology | Writer | Reviewer | Illustrator | Guitarist ♬
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NeuroTeach 9 - Cerebellum Part I
The dysfunctional little brain!!! Part I
“regulates ‘rate, range, and force’ of movement”
Irish neurologist Gordon Morgan Holmes (1876–1965)
2) Dyssynergia
“lack of integration of the components of the act results in decomposition of movement”
- rapid ‘repetitive’ movement
3) Dyssynergia
“lack of integration of the components of the act results in decomposition of movement”
- rapid ‘repetitive’ movement
4) Dysmetria
“errors in judging distance and gauging the distance, speed, power, and direction of movement”
- past pointing
- hypermetria is more common
5) Dysmetria
“errors in judging distance and gauging the distance, speed, power, and direction of movement”
6) Dysmetria
“errors in judging distance and gauging the distance, speed, power, and direction of movement”
7) Dysmetria
- clear instructions
- finger & foot
- index near & far
8) Dysmetria
“errors in judging distance and gauging the distance, speed, power, and direction of movement”
- modified to chin test
9) Dysmetria
“errors in judging distance and gauging the distance, speed, power, and direction of movement”
10) Dysdiadochokinesia
“clumsy term (coined by Babinski) that means inability to make rapid ‘alternating’ movement”
- antagonist-agonist coordination
11) Dysdiadochokinesia
“clumsy term (coined by Babinski) that means inability to make rapid ‘alternating’ movement”
- antagonist-agonist coordination
12) Dysdiadochokinesia
“clumsy term (coined by Babinski) that means inability to make rapid ‘alternating’ movement”
- antagonist-agonist coordination
13) Dysdiadochokinesia song
Dysdiadochokinesia
indicates a cerebellar lesion
rapid alternating movements
thigh, hand and foot tapping
14) Holmes (Stewart-Holmes) rebound phenomenon
“reflex when one attempts to move a limb against resistance that is suddenly removed”
- antagonist-agonist coordination
- loss of checking response
- normal, spasticity, cerebellar
15) Holmes (Stewart-Holmes) rebound phenomenon
“reflex that occurs when one attempts to move a limb against resistance that is suddenly removed”
- loss of checking response
16) Holmes (Stewart-Holmes) rebound phenomenon
“reflex that occurs when one attempts to move a limb against resistance that is suddenly removed”
- checking response
17) Pendular reflex
“muscle hypotonicity and the lack of normal checking of the reflex response”
- hypotonia
- decrease tonic output of the cerebellar nuclei
18) Pendular reflex
“muscle hypotonicity and the lack of normal checking of the reflex response”
- hypotonia
- decrease tonic output of the cerebellar nuclei
19) Pendular reflex
“muscle hypotonicity and the lack of normal checking of the reflex response”
- hypotonia
- decrease tonic output of the cerebellar nuclei
20) Cerebellar wrist
- hypotonia
- extended and arched dorsally
- fingers hyperextended
- tendency toward overpronation
21) Scanning speech
“slow, slurred, staccato, monotonous”
- ataxic dysarthria and/or MS dysarthria> severe dysarthria can lead to anarthria
- oral motor ataxia
- speech asynergy
22) Scanning speech
“slow, slurred, staccato, monotonous”
- ataxic dysarthria and/or MS dysarthria
- oral motor ataxia
- speech asynergy
23) Scanning speech
“slow, slurred, staccato, monotonous”
- ataxic dysarthria and/or MS dysarthria
- oral motor ataxia
- speech asynergy
24) Scanning speech
“slow, slurred, staccato, monotonous”
- ataxic dysarthria and/or MS dysarthria
- oral motor ataxia
- speech asynergy
