Topics:
• I. The role of cerebellar circuits in motor control
• II. Integration of sensory inputs from different modalities by
cerebellar circuits
Cat diagram needs support as there is no cerebellar
support(cerebellum is needed for balance)
Cerebellum: maintains balance, coordinates the execution of
movement and aids in motor learning
Doesn’t play much role before movement is generated but instead after the generation of
the movement
The cerebellum is in a closed side-loop of the
descending motor control system: a hint at its
function?
Sensory information to the cerebellum: comes
from skin, joints, muscles, vestibular apparatus,
eyes.
Number of fibres entering the cerebellum is much
greater than number of fibers leaving it (40:1).
Convergence of many pathways, high degree of
processing going on (contains > 50% of the total
number of neurons in the CNS!)
Large regions of the cerebral cortex (shown in blue)
project to the cerebellum
The cortical projections to the cerebellum are mainly from the sensory association cortex
of the parietal lobe and motor association areas of the frontal lobe. (M2) (SMA) (PMA)
• I. The role of cerebellar circuits in motor control
• II. Integration of sensory inputs from different modalities by
cerebellar circuits
Cat diagram needs support as there is no cerebellar
support(cerebellum is needed for balance)
Cerebellum: maintains balance, coordinates the execution of
movement and aids in motor learning
Doesn’t play much role before movement is generated but instead after the generation of
the movement
The cerebellum is in a closed side-loop of the
descending motor control system: a hint at its
function?
Sensory information to the cerebellum: comes
from skin, joints, muscles, vestibular apparatus,
eyes.
Number of fibres entering the cerebellum is much
greater than number of fibers leaving it (40:1).
Convergence of many pathways, high degree of
processing going on (contains > 50% of the total
number of neurons in the CNS!)
Large regions of the cerebral cortex (shown in blue)
project to the cerebellum
The cortical projections to the cerebellum are mainly from the sensory association cortex
of the parietal lobe and motor association areas of the frontal lobe. (M2) (SMA) (PMA)
