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Related Concept Videos

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.
Motor Unit Stimulation01:20

Motor Unit Stimulation

When the neuron of a motor unit fires an action potential, it triggers a series of events, leading to a twitch contraction in the muscle fibers. The process of excitation-contraction coupling is crucial in relaying the action potential to the muscle fibers.
The latent period of contraction marks the onset of excitation-contraction coupling, when the action potential propagates across the sarcolemma, preparing the muscle fibers for contraction. As the fibers enter the contraction phase, 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...
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...
Electro-mechanical Systems01:19

Electro-mechanical Systems

Electromechanical systems are intricate configurations that effectively combine electrical and mechanical elements to achieve a desired outcome. Central to many of these systems is the DC motor, a device that converts electrical energy into mechanical motion, enabling various applications ranging from simple fans to complex robotic mechanisms.
A key component of the DC motor is the armature, a rotating circuit positioned within a magnetic field. As an electric current passes through the...
Relative Motion Analysis - Velocity01:24

Relative Motion Analysis - Velocity

A stroke engine has a slider-crank mechanism that converts rotational motion from the crank into linear motion of the slider or vice versa. This mechanism consists of three main parts: the crank, the connecting rod, and the slider.
When an external force is exerted, it sets the crank into a rotational movement. This, in turn, instigates the motion of the connecting rod, leading to what is referred to as a general plane motion. This process involves two key points - point A on the connecting rod...

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Related Experiment Video

Updated: Jun 5, 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 timing and the preparation for sequential actions.

Marta Bortoletto1, Alana Cook, Ross Cunnington

  • 1School of Psychology and Queensland Brain Institute, The University of Queensland, St. Lucia, Queensland 4072, Australia. marta.bortoletto@cognitiveneuroscience.it

Brain and Cognition
|December 31, 2010
PubMed
Summary
This summary is machine-generated.

Movement preparation involves distinct processes for timing and sequencing. Sequence initiation impacts early brain activity, while rhythm and order share later processes, suggesting specialized motor timing mechanisms.

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Related Experiment Videos

Last Updated: Jun 5, 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

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12:33

Corticospinal Excitability Modulation During Action Observation

Published on: December 31, 2013

A Method for Evaluating Timeliness and Accuracy of Volitional Motor Responses to Vibrotactile Stimuli
07:28

A Method for Evaluating Timeliness and Accuracy of Volitional Motor Responses to Vibrotactile Stimuli

Published on: August 2, 2016

Area of Science:

  • Neuroscience
  • Motor Control
  • Cognitive Psychology

Background:

  • Self-initiated movement sequences rely heavily on precise motor timing.
  • Understanding the neural underpinnings of action preparation is crucial for motor control research.

Purpose of the Study:

  • To investigate the distinct contributions of sequence rhythm and sequence initiation to action preparation.
  • To differentiate the neural processes underlying motor timing and sequence ordering.

Main Methods:

  • Electroencephalography (EEG) was used to record the readiness potential (RP).
  • Participants performed self-initiated movement sequences under conditions varying in sequence rhythm and initiation demand.
  • Comparisons were made between conditions focusing on complex sequence rhythm, initiation timing, and sequence order.

Main Results:

  • Sequence initiation processes were found to be independent of sequence rhythm, influencing early RP.
  • Sequence rhythm and sequence order shared common neural processes, reflected in late RP.
  • These findings suggest distinct neural pathways for different aspects of motor sequencing and timing.

Conclusions:

  • Action preparation involves separable neural processes for motor timing and sequence organization.
  • Sequence initiation and rhythm/order processing are dissociable components of motor planning.
  • This research advances our understanding of the neural basis of complex motor behavior.