Cerebellar disorders

Question 1

Cerebellar lesions tend to produce ____ s/s

Answer 1

ipsilateral

Question 2

Lesions of archicerebellum (floculonodular lobe)

Answer 2

Central vestibular symptoms - ocular dysmetria, poor eye pursuit, dysfunctional VOR, impaired hand/eye coord
Gait and trunk ataxia

Question 3

Lesions of paleocerebellum (spinocerebellum; rostral cbm and anterior lobe)

Answer 3

Hypotonia
Truncal ataxia - dysequilibrium, static postural tremor, inc sway, wide BOS, high guard position
Ataxic gait

Question 4

Lesions of neocerebellum (hemisphere, post lobe)

Answer 4

Intention tremor
dysdiadochokinesia 
dysmetria (hyper)
Dyssynergia 
Errors n timing related to perceptual tasks

Question 5

Asthenia

Answer 5

generalized weakness (F to G mm grades)

Question 6

Hypotonia

Answer 6

esp in acut cbm

difficulty with postural control of proximal mm

Question 7

Motor learning impairments

Answer 7

dec anticipatory control, feedback, learning delays