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Related Concept Videos

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...
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...
Major Somatic Sensory Pathways01:28

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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...
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.
Cerebral Hemispheres01:05

Cerebral Hemispheres

The human brain, a complex organ, is functionally divided into two cerebral hemispheres—left and right. These hemispheres are interconnected by a structure of paramount importance, the corpus callosum. This substantial bundle of neural fibers is not just a bridge between the hemispheres but a crucial element for the brain's comprehensive functioning. It enables efficient communication between the two hemispheres, allowing each side of the brain to control and receive sensory and motor...
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The brain is an integral component of the nervous system and serves as the center for processing sensory inputs, making decisions, and directing bodily actions. This complex organ is organized into three primary sections: the hindbrain, midbrain, and forebrain, each responsible for a range of vital functions.
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The hindbrain, located at the base of the brain, plays a vital role in regulating automatic processes that sustain life. It includes the medulla oblongata, which is essential for...

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Cerebellar Regional Dissection for Molecular Analysis
08:51

Cerebellar Regional Dissection for Molecular Analysis

Published on: December 5, 2020

The cerebellum mediates conflict resolution.

Tom A Schweizer1, Chris Oriet, Nachshon Meiran

  • 1Rotman Research Institute, Baycrest, Toronto, Ontario, Canada. tschweizer@rotman-baycrest.on.ca

Journal of Cognitive Neuroscience
|September 26, 2007
PubMed
Summary

The cerebellum, not just for movement, is crucial for cognitive control during conflict resolution. Patients with cerebellar damage showed impaired conflict management but intact task-switching abilities.

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Modulating Cognition Using Transcranial Direct Current Stimulation of the Cerebellum
11:47

Modulating Cognition Using Transcranial Direct Current Stimulation of the Cerebellum

Published on: February 15, 2015

Area of Science:

  • Neuroscience
  • Cognitive Psychology
  • Neurobiology

Background:

  • Frontal and parietal cortex regions are known neural correlates of cognitive control in conflict resolution.
  • The cerebellum's extensive connectivity with these cortical areas suggests a potential role, yet it remains unidentified.

Purpose of the Study:

  • To investigate the cerebellum's role in cognitive control, specifically in conflict resolution, independent of motor processing.
  • To determine if cerebellar lesions impair conflict resolution abilities.

Main Methods:

  • A task-switching paradigm was employed to differentiate task-set switching from response conflict management.
  • Eleven patients with chronic, focal cerebellar lesions were compared to 11 healthy controls.

Main Results:

  • Patients with cerebellar lesions were significantly slower and less accurate in conditions requiring conflict resolution.
  • Task-switching abilities were not impaired in patients when response conflict was absent.
  • These findings indicate a specific deficit in conflict resolution following cerebellar damage.

Conclusions:

  • The cerebellum may be essential for coordinating with cortical areas to modulate response states.
  • This study provides the first evidence of impaired conflict resolution in patients with cerebellar lesions, with an intact prefrontal cortex.