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Related Concept Videos

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...
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...
Hierarchy of Motor Control01:18

Hierarchy of Motor Control

The hierarchy of motor control refers to the different levels of organization and processing involved in controlling movement in the body. These levels range from higher cortical areas involved in planning and decision-making to lower spinal cord reflexes that respond automatically to external stimuli.
Direct Motor Pathways01:11

Direct Motor Pathways

The direct motor pathways, also known as the pyramidal tracts, are a group of neural pathways that originate in the brain and descend through the spinal cord. They control the voluntary movement of the body. There are two major direct motor pathways: the corticospinal and the corticobulbar tracts.
The corticospinal tract is responsible for the voluntary movement of the limbs and trunk. It originates in the cerebral cortex of the brain and descends through the cerebrum's internal capsule and the...

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Related Experiment Video

Updated: Jul 3, 2026

The "Motor" in Implicit Motor Sequence Learning: A Foot-stepping Serial Reaction Time Task
10:39

The "Motor" in Implicit Motor Sequence Learning: A Foot-stepping Serial Reaction Time Task

Published on: May 3, 2018

Motor sequence learning occurs despite disrupted visual and proprioceptive feedback.

Eric D Vidoni1, Lara A Boyd

  • 1Department of Physical Therapy & Rehabilitation Science, University of Kansas Medical Center Kansas City, KS, USA. lara.boyd@ubc.ca.

Behavioral and Brain Functions : BBF
|July 29, 2008
PubMed
Summary
This summary is machine-generated.

Motor learning of continuous movement sequences is possible even with altered proprioception and limited visual cues. The brain can adapt to use remaining sensory information for skill acquisition.

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Related Experiment Videos

Last Updated: Jul 3, 2026

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Area of Science:

  • Motor control and learning
  • Neuroscience
  • Human motor performance

Background:

  • Proprioception is crucial for internal force representations and sequential movement execution.
  • The role of proprioceptive sensation in continuous motor sequence learning remains under-explored.
  • This study investigates motor learning of continuous sequences with altered proprioception and restricted visual feedback.

Purpose of the Study:

  • To determine if continuous motor sequences can be learned despite impaired proprioception.
  • To assess the impact of restricted visual feedback on motor learning of continuous sequences.
  • To understand the brain's adaptive mechanisms in motor learning under sensory challenges.

Main Methods:

  • Healthy adults practiced a continuous tracking task over two days.
  • An experimental group received vibration to alter arm proprioception; a control group received vibration to a passive arm.
  • Visual feedback was restricted for all participants; retention was tested separately.

Main Results:

  • Participants successfully learned the repeated segment of the tracking task, irrespective of vibration condition.
  • Learning was evidenced by significant accuracy improvements in tracking repeated sequences compared to random ones.
  • Motor performance showed initial interference but ultimately led to successful motor learning.

Conclusions:

  • Motor sequence learning can occur even with peripheral proprioceptive alterations and restricted visual input.
  • The brain utilizes residual afferent information to adapt and overcome sensory interference during motor learning.
  • Practice enables the learning of continuous motor sequences by compensating for initial tracking difficulties.