Cerebellar Dysfunction

Question 1

Where are the impairments in cerebellar dysfunctions

Answer 1

Ipsilateral

Question 2

What are the three functional areas of the cerebella?

Answer 2

Midline
Hemispheres
Posterior

Question 3

Motor impairments

Answer 3

Asthensia
Ataxic gait
Delayed reaction time
Dysarthria
Dysdiadochokinesia (impaired ability performing alternating mvmts
Dysmetria (hyper or hypometria, under or overshooting a mvmt)
Dysrytmia (abnormal timing of mvmts
Dyssynergia (breaking down mvmts)

Question 4

Hypotonia

Question 5

Motor learning problems

Answer 5

Feed forward control is off

Question 6

Nystagmus

Question 7

Rebound phenomenon

Answer 7

Ability to stop forceful active mvmt when resistance is removed (“check reflex”)

Question 8

Intention (kinetic) tremor

Answer 8

During voluntary movements, increases as speed is increased or when approaching target

Question 9

Postural (static) tremor

Question 10

Non-equilibrium coordination tests

Answer 10

Finger - nose
Finger - therapists fingers
Finger - finger
Alternate nose - finger
Finger opposition
Mass grasp
Pronation Supination
Rebound test
Tapping
Alternate heel-knee; heel - toe
Toe to examiners finger
Heel on shin
Drawing a circle
Position holding (fixation)