Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Spinal Cord: Information Processing01:10

Spinal Cord: Information Processing

4.0K
The spinal cord is an integral hub for motor and sensory information that enables the brain to communicate with the peripheral nervous system (PNS). This communication consists of relaying sensory data and transmission of motor commands.
Sensory Information Processing
Sensory information processing begins at the sensory receptors located in the skin and other tissues, which detect somatic sensory stimuli such as touch, temperature, or pain. These receptors function as catalysts, initiating...
4.0K
Neural Circuits01:25

Neural Circuits

3.0K
Neural circuits and neuronal pools are two of the main structures found in the nervous system. Neural circuits are networks of neurons that work together to carry out a specific task or process. They consist of interconnected neurons and glial cells, which provide structural and metabolic support.
Neuronal pools are collections of nerve cells with similar functions and interact through chemical and electrical signals. These pools include both interneurons (the central neural circuit nodes that...
3.0K
Indirect Motor Pathways01:22

Indirect Motor Pathways

3.4K
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...
3.4K
Motor Unit Stimulation01:20

Motor Unit Stimulation

4.6K
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...
4.6K
Somatic Spinal Reflexes01:22

Somatic Spinal Reflexes

7.7K
Somatic spinal reflexes are rapid, involuntary muscular responses to external stimuli that involve the somatic musculature and the spinal cord.
One of the most well-known somatic spinal reflexes is the stretch reflex, which is activated by the sudden stretching of a muscle. This reflex involves the activation of specialized sensory receptors called muscle spindles, which are located in the muscle tissue and detect changes in the length and speed of muscle contractions. When a muscle is suddenly...
7.7K
Hierarchy of Motor Control01:18

Hierarchy of Motor Control

5.5K
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.
5.5K

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Concurrent control of natural and robotic limbs through a tactile-encoded brain-computer interface.

Nature communications·2026
Same author

Spiking neural network decoders of finger forces from high-density intramuscular microelectrode arrays.

Nature communications·2026
Same author

Risk Stratification of Patients With Type 2 Long-QT Syndrome Through Analysis of T-Wave Morphology.

Journal of the American Heart Association·2026
Same author

Machine Learning Aided Kinematic Profiling of Reaching Movements Separates Spinocerebellar Ataxia type 12 and Essential Tremor.

Cerebellum (London, England)·2026
Same author

A Roadmap to Navigate the Future of Neural Engineering.

Journal of neural engineering·2026
Same author

Author Correction: Implanted microelectrode arrays in reinnervated muscles allow separation of neural drives from transferred polyfunctional nerves.

Nature biomedical engineering·2026

Related Experiment Video

Updated: Apr 24, 2026

Conversion of Human Induced Pluripotent Stem Cells iPSCs into Functional Spinal and Cranial Motor Neurons Using PiggyBac Vectors
07:33

Conversion of Human Induced Pluripotent Stem Cells iPSCs into Functional Spinal and Cranial Motor Neurons Using PiggyBac Vectors

Published on: May 1, 2019

11.1K

Spinal motor neuron pools may be partly driven by impulsive common inputs.

Javier Yanguas Mayo1, Alejandro Pascual Valdunciel1, Stuart N Baker2

  • 1Biomedical Signal Interpretation and Computational Simulation (BSICoS) Group, Aragon Institute of Engineering Research (I3A), IIS Aragon, Universidad de Zaragoza, Zaragoza, Spain.

The Journal of Physiology
|April 22, 2026
PubMed
Summary
This summary is machine-generated.

Spinal motor neurons may receive impulsive common inputs (iCI), not just continuous ones (cCI). These iCI can synchronize motor neuron activity and alter signal transmission, challenging current motor control models.

Keywords:
impulsive common inputmotor controlmotor neuronsmovementnon‐linear behaviour

More Related Videos

Spinal Cord Electrophysiology
04:59

Spinal Cord Electrophysiology

Published on: January 18, 2010

21.2K
Extracellularly Identifying Motor Neurons for a Muscle Motor Pool in Aplysia californica
13:37

Extracellularly Identifying Motor Neurons for a Muscle Motor Pool in Aplysia californica

Published on: March 25, 2013

11.4K

Related Experiment Videos

Last Updated: Apr 24, 2026

Conversion of Human Induced Pluripotent Stem Cells iPSCs into Functional Spinal and Cranial Motor Neurons Using PiggyBac Vectors
07:33

Conversion of Human Induced Pluripotent Stem Cells iPSCs into Functional Spinal and Cranial Motor Neurons Using PiggyBac Vectors

Published on: May 1, 2019

11.1K
Spinal Cord Electrophysiology
04:59

Spinal Cord Electrophysiology

Published on: January 18, 2010

21.2K
Extracellularly Identifying Motor Neurons for a Muscle Motor Pool in Aplysia californica
13:37

Extracellularly Identifying Motor Neurons for a Muscle Motor Pool in Aplysia californica

Published on: March 25, 2013

11.4K

Area of Science:

  • Neuroscience
  • Motor Control
  • Computational Biology

Background:

  • Spinal motor neurons are the final common pathway for neuromuscular control.
  • Current models assume motor neurons are driven by continuous common inputs (cCI).
  • This framework may not fully explain observed motor unit pool behavior, like synchronization.

Purpose of the Study:

  • To investigate the role of impulsive common inputs (iCI) in motor neuron activity.
  • To determine if iCI can explain synchronization and altered signal transmission in motor neuron pools.
  • To challenge the existing paradigm of continuous input-driven motor control.

Main Methods:

  • Computational simulations of motor neuron networks.
  • Analysis of experimental data from two human muscles.
  • Characterization of motor neuron spiking synchronization.

Main Results:

  • Impulsive common inputs (iCI) can account for synchronization events in motor neuron pools.
  • iCI were found to affect the linear transmission of continuous common inputs (cCI).
  • Findings provide indirect evidence for the existence of iCI in motor neuron synaptic input.

Conclusions:

  • Spinal motor neurons receive both continuous (cCI) and impulsive (iCI) common inputs.
  • iCI synchronize motor neuron activity and impact signal processing within the motor neuron pool.
  • This discovery necessitates a revised understanding of motor control and neural interface development.