Definition


The cerebellum is considered a miniature brain located under the brain; it is a structure that is located at the back of the brain, underlying the occipital and temporal lobes of the cerebral cortex. Its function is not to control motor movements, but to modify and refine them to be more accurate and adaptive.

Quite Simply.....


  • Its the part of the brain that is associated with balance and posture, voluntary movements, motor learning and cognitive functions.
  • The cerebellum controls coordinated movement.


What does the Cerebellum control?


  • Understanding of language

  • Motor Functions such as running or dancing
  • Clapping your hands together
  • Riding a bike
  • Regulates the initiation and timing of movements
  • Maintains balance and posture
  • Modulate the force, steadiness, and range of movement

*Most functions of the cerebellum are considered part of motor control however the cerebellum is still involved with certain cognitive functions such as understanding of language.

Research


  • One experiment involving the cerebellum occurred when scientists took amateur pianists and made them memorize a concerto by Bach. They then took the pianists and placed them in a PET scan. The pianists then played the memorized concerto blindfolded and places in the brain involving involuntary movement, like the cerebellum, lit up under the PET scan. This experiment further proved that the cerebellum is the section of the brain in charge of involuntary/unconscious movement and doing things in sequential order.

  • In 1891, Luigi Luciani published his famous monograph on the cerebellum and formulated his triad of the cerebellar symptoms: atonia, asthenia and astasia, which explained all troubles provoked by cerebellar lesions; later he added a fourth sign, dysmetria. In spite of the fact that it was advanced in a pre-electrophysiological period, Luciani‚Äôs interpretation of the cerebellar role in many motor functions survives more than a century later and his terminology has entered the routine of the neurological examination.With the modern knowledge of cerebellar circuitries,we can state that Luciani rightly pointed out the role of the cerebellum in regulating postural tone and muscular force, and that conversely he was wrong in denying cerebellar influence in co-ordination of multi-joint movements and the somatotopic localisations in the cerebellar cortex and nuclei