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Related Concept Videos

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...
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...
REM Sleep Behavior Disorder01:15

REM Sleep Behavior Disorder

REM Sleep Behavior Disorder (RBD) is a sleep disorder characterized by the absence of muscle paralysis that normally occurs during the REM phase of sleep. This absence allows individuals to physically act out their dreams, which are often vivid and disturbing. Common behaviors exhibited during episodes include kicking, punching, and yelling. These actions can be dangerous, potentially leading to injuries for the person with RBD or their bed partner.
RBD is significantly associated with...
Alterations in Muscle Tone lll01:11

Alterations in Muscle Tone lll

Rigidity and myotonia are distinct abnormalities of muscle tone that affect resistance and relaxation during movement. Although both involve altered muscle contraction, they arise from different neurological and muscular mechanisms.CharacteristicsRigidity is characterized by uniform resistance to passive movement across the entire range, independent of speed, affecting flexors and extensors equally. It may appear as lead-pipe rigidity (smooth, constant resistance) or cogwheel rigidity...
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...
Disorders of the Skeletal Muscle01:28

Disorders of the Skeletal Muscle

The clinical conditions affecting the skeletal muscle tissue are broadly categorized as musculoskeletal and neuromuscular disorders.
Musculoskeletal disorders
Musculoskeletal disorders involve injuries and conditions affecting the skeletal muscles and associated connective tissues. These disorders can arise from acute biomechanical stresses or chronic overuse and can occur across different age groups. Common injuries include sprains, fractures, and muscular strains, often resulting from...

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Related Experiment Video

Updated: May 14, 2026

Cerebellar Regional Dissection for Molecular Analysis
08:51

Cerebellar Regional Dissection for Molecular Analysis

Published on: December 5, 2020

Cerebellar mutism.

Michael Küper1, Dagmar Timmann

  • 1Department of Neurology, University of Duisburg-Essen, Hufelandstrasse 55, 45122 Essen, Germany.

Brain and Language
|February 13, 2013
PubMed
Summary
This summary is machine-generated.

Cerebellar mutism, a common post-surgery complication in children, involves temporary speech loss and potential long-term cognitive issues. Injury to specific brain pathways is implicated, suggesting surgical technique modifications may prevent it.

Keywords:
Dentatothalamocortical tractDiaschisisDysarthriaMedulloblastomaPosterior fossa syndrome

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Last Updated: May 14, 2026

Cerebellar Regional Dissection for Molecular Analysis
08:51

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Published on: December 5, 2020

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Modeling Stroke in Mice: Transient Middle Cerebral Artery Occlusion via the External Carotid Artery

Published on: May 24, 2021

Area of Science:

  • Neuroscience
  • Pediatric Surgery
  • Speech Pathology

Background:

  • Cerebellar mutism affects approximately 25% of children after posterior fossa tumor surgery.
  • This condition often presents with neurological and behavioral changes, including transient mutism, dysarthria, and potential long-term language and neuropsychological deficits.

Purpose of the Study:

  • To explore the pathophysiological mechanisms underlying cerebellar mutism.
  • To identify critical factors contributing to the development of mutism and persistent deficits.
  • To suggest potential preventive strategies and management recommendations.

Main Methods:

  • Review of clinical observations and neuroimaging findings in pediatric patients.
  • Analysis of the relationship between surgical injury and neurological outcomes.
  • Correlation of cerebello-cerebral diaschisis with speech dysfunction.

Main Results:

  • Cerebellar mutism is often associated with crossed cerebello-cerebral diaschisis during the mute period.
  • Injury to the bilateral dentatothalamocortical tract is critical for developing diaschisis and subsequent mutism.
  • Direct cerebellar injury may lead to persistent deficits post-mutism.

Conclusions:

  • Minimizing injury to the dentatothalamocortical tract during surgery shows promise for preventing cerebellar mutism.
  • While no definitive treatment exists, early speech and rehabilitation therapy are recommended.
  • Understanding the pathophysiology is key to improving surgical outcomes and patient recovery.