ANATOMY

• archeocerebellum (flocculonodular lobe)

• paleocerebellum (pyramids, uvula, paraflocculus and parts of the anterior lobe)

• neocerebellum (posterior lobe of the body of the cerebellum)

• Median cerebellum

• Lateral cerebellum (neocerebellum)

• Vestibulocerebellum (archicerebellum and vermis)

• Spinocerebellum (paleocerebellum )

• Pontocerebellum (neocerebellum)

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CEREBELLUM

• Control center for motor function

• Postural and supportive motor function

• Oculomotor function

• Programmed movement

• Motor adaption

• Learning of motor sequences

• Receives afferent and efferent connections to the cortex and periphery

• A: Spinal, vestibular, ocular, cortex (motoric)

• E: Spinal cord, brain stem, vestibular nuclei, thalamus

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LESIONS

• Disturbance of balance and oculomotor control

• vertigo, nausea,

• trunk & gait ataxia

• Disturbance of initiation, coordination and termination ogf goal-directed

movement

• Disdiadokokinesia : inability to perform rapid alternating movement

• Intention tremor : tremor when attempting voluntary coordinated movement

• Dysmetria : difficulty of measuring distances during muscular movement

• Rebound phenomenon : pendular rebound motion after stoppping movement

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NEUROTRANSMITTERS

• Input fibers : GABA

• Output fibers : aspartate, serotonin, norepinefrin

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CONSIOUSNESS

• Function of cerebral cortex

• Brain wave types:

• Degree of wakefullness

• Amplitude and frequency

• α: awake, eyes closed

• β: increased attention and activity (arousal)

• γ: learning activity

• δ: sleep

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