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Related Concept Videos

Major Somatic Sensory Pathways01:28

Major Somatic Sensory Pathways

Sensory impulses related to touch, pressure, vibration, and proprioception from various body parts, such as the limbs, trunk, neck, and posterior head, travel to the cerebral cortex through the posterior column-medial lemniscus pathway. The pathway’s name derives from the two white-matter tracts that convey the impulses: the spinal cord's posterior column and the brainstem's medial lemniscus. First-order sensory neurons extend their axons into the spinal cord, forming the posterior columns...
Cerebellum: Anatomical Regions01:17

Cerebellum: Anatomical Regions

The cerebellum, also known as the "little brain," is located in the posterior cranial fossa, inferior to the tentorium cerebelli and dorsal to the brainstem. It plays a significant role in motor control, coordination, and proprioception.
Cerebellar Structure
Externally, the cerebellum features a highly convoluted surface with numerous folia (narrow ridges) separated by shallow sulci (grooves). The cerebellum is divided into two hemispheres by a thin median structure known as the vermis. The...
Diencephalon: Thalamus and Information Relay01:27

Diencephalon: Thalamus and Information Relay

The thalamus, often called “the gateway to the cerebral cortex,” is vital in processing and directing sensory and motor signals throughout the brain. Almost all inputs destined for the cerebral cortex, except for olfactory signals, are relayed through the thalamus. The thalamus is  a sophisticated relay station, channeling information from various brain regions to the cerebral cortex, as well as a filter, prioritizing certain signals over others based on current physiological states or needs.
Brainstem01:19

Brainstem

The brainstem, located inferior to the brain and superior to the spinal cord, serves as a bridge between the cerebrum and the spinal cord. It plays a vital role in relaying information and controlling critical life functions. It comprises three primary regions: the midbrain, pons, and medulla oblongata.
The Midbrain
The midbrain is located beneath the diencephalon and connects the cerebrum with the lower parts of the brain. The cerebral peduncles are prominent midbrain structures that house the...
Indirect Motor Pathways01:22

Indirect Motor Pathways

The indirect motor or extrapyramidal pathways originate in the brainstem, the lower portion of the brain that connects it to the spinal cord. They consist of several distinct tracts, each with specialized functions. The four main tracts of the indirect motor pathways are the vestibulospinal tract, the reticulospinal tract, the tectospinal tract, and the rubrospinal tract.
The vestibulospinal tract originates in the vestibular nuclei of the brainstem. The vestibular system detects changes in...
Role of Cerebellum and Prefrontal Cortex in Memory01:14

Role of Cerebellum and Prefrontal Cortex in Memory

The cerebellum, while traditionally associated with motor control, also plays a crucial role in memory, particularly in procedural memory, which involves learning motor tasks that become automatic through repetition. For example, studies have shown that when the cerebellum is damaged, individuals or animals lose the ability to learn conditioned motor responses, such as the conditioned eye-blink response in classical conditioning experiments with rabbits. This study demonstrates the cerebellum's...

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Related Experiment Video

Updated: May 8, 2026

Cerebellar Regional Dissection for Molecular Analysis
08:51

Cerebellar Regional Dissection for Molecular Analysis

Published on: December 5, 2020

Does the cerebellum initiate movement?

W T Thach1

  • 1Departments of Neurobiology,, Washington University School Of Medicine, St Louis, MO, 63110, USA, thachw@pcg.wustl.edu.

Cerebellum (London, England)
|August 22, 2013
PubMed
Summary

The cerebellum integrates movement factors, body part representations, and learned dynamics to initiate coordinated movements. Its crucial role in motor control is supported by stimulation and ablation studies.

Area of Science:

  • Neuroscience
  • Motor Control
  • Cerebellar Function

Background:

  • The precise function of the cerebellum remains debated in scientific literature.
  • Existing research presents various hypotheses regarding its role in motor control.

Purpose of the Study:

  • To summarize experimental evidence supporting specific functions of the cerebellum.
  • To elucidate the cerebellum's role in combining movement factors and initiating coordinated actions.

Main Methods:

  • Review and synthesis of experimental findings on cerebellar function.
  • Analysis of data from cerebellar stimulation and ablation studies.

Main Results:

  • The cerebellum combines movement factors, integrates body part representations, and stores learned physical properties.

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Ex Vivo Culture of Chick Cerebellar Slices and Spatially Targeted Electroporation of Granule Cell Precursors
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Ex Vivo Culture of Chick Cerebellar Slices and Spatially Targeted Electroporation of Granule Cell Precursors

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Last Updated: May 8, 2026

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  • It utilizes a parallel fiber system to link body parts, motor modes, and dynamics.
  • Cerebellar stimulation can initiate coordinated movements, and its activity precedes motor cortex discharge.

    • Conclusions:

    • The cerebellum plays a unique, causative role in initiating compound coordinated movements.
    • Evidence from electrical stimulation and ablation supports its essential function in motor execution.