Jove
Visualize
Contáctanos
JoVE
x logofacebook logolinkedin logoyoutube logo
ACERCA DE JoVE
Visión GeneralLiderazgoBlogCentro de Ayuda JoVE
AUTORES
Proceso de PublicaciónConsejo EditorialAlcance y PolíticasRevisión por ParesPreguntas FrecuentesEnviar
BIBLIOTECARIOS
TestimoniosSuscripcionesAccesoRecursosConsejo Asesor de BibliotecasPreguntas Frecuentes
INVESTIGACIÓN
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchivo
EDUCACIÓN
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualCentro de Recursos para ProfesoresSitio de Profesores
Términos y Condiciones de Uso
Política de Privacidad
Políticas

Videos de Conceptos Relacionados

Hierarchy of Motor Control01:18

Hierarchy of Motor Control

3.5K
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.
3.5K
Direct Motor Pathways01:11

Direct Motor Pathways

2.4K
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...
2.4K
Indirect Motor Pathways01:22

Indirect Motor Pathways

1.7K
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...
1.7K
Propagation of Action Potentials01:23

Propagation of Action Potentials

6.8K
The propagation of an action potential refers to the process by which a nerve impulse, or "action potential," travels along a neuron.
Neurons (nerve cells) have a resting membrane potential, with a slightly negative charge inside compared to outside. This is maintained by ion channels, such as sodium (Na+) and potassium (K+) channels, which control the flow of ions. When a stimulus, like a touch or a signal from another neuron, triggers the neuron, sodium channels open, allowing sodium ions to...
6.8K
Muscle Coordination and Action01:24

Muscle Coordination and Action

2.0K
Muscle coordination is a complex and finely tuned process essential for smooth and purposeful movements like flexion, extension, adduction, abduction, and rotation. The human body orchestrates the actions of various muscles working in concert, each with a specific role. Four functional types describe how muscles work together: agonist, antagonist, synergist, and fixator.
Agonists
Agonist muscles, often called prime movers, are the primary muscles responsible for producing a specific movement....
2.0K
Motor and Sensory Areas of the Cortex01:14

Motor and Sensory Areas of the Cortex

4.6K
The cerebral cortex, the brain's outermost layer, is pivotal in processing complex cognitive tasks, emotions, and various sensory inputs and executing voluntary motor activities. This intricate structure is divided into three primary functional areas: the motor areas, sensory areas, and association areas.
Motor Areas
The motor areas located in the frontal lobe are central to controlling voluntary movements. This region is further subdivided into the primary motor cortex and the premotor cortex....
4.6K

También podría leer

Artículos Relacionados

Artículos vinculados a este trabajo por autores compartidos, revista y gráfico de citas.

Ordenar por
Same author

Motor biases reflect a misalignment between visual and proprioceptive reference frames.

eLife·2026
Same author

Integrated approaches for investigating the neural bases of movement-highlights from the 34th Annual Meeting of the Society for the Neural Control of Movement.

Journal of neurophysiology·2026
Same author

Integration of affective cues in context-rich and dynamic scenes varies across individuals.

Nature communications·2025
Same author

Slow change blindness from serial dependence.

bioRxiv : the preprint server for biology·2025
Same author

Contextual effects during sensorimotor adaptation are an emergent property of population coding in a cerebellar-inspired model.

Science advances·2025
Same author

Sequential Effects in Reaching Reveal Efficient Coding in Motor Planning.

bioRxiv : the preprint server for biology·2024
Same journal

Erratum for the Research Article "Assessing the health risks of rice cadmium content standards in China" by H. Chu <i>et al</i>.

Science advances·2026
Same journal

Erratum for the Research Article "Developmental regulation of Erk signaling by mitotic kinases" by F. Chen <i>et al</i>.

Science advances·2026
Same journal

Magnetically levitated metasurface enabling tangible and bidirectional human-machine interaction.

Science advances·2026
Same journal

A general photoinduced manganese-catalyzed platform for the sequential difunctionalization of [1.1.1]propellane.

Science advances·2026
Same journal

Turning sound and force into light with AlN:Mn<sup>2+</sup> mechanoluminescence.

Science advances·2026
Same journal

Extreme dominance of Earth-origin heavy ions in the intense ring current near the Earth during the May 2024 super geomagnetic storm.

Science advances·2026
Ver todos los artículos relacionados

Video Experimental Relacionado

Updated: Sep 10, 2025

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

8.6K

Los efectos secuenciales en el alcance revelan una codificación eficiente en la planificación motora

Tianhe Wang1,2, Yifan Fang1, David Whitney1,2,3

  • 1Department of Psychology, University of California, Berkeley, Berkeley, CA, USA.

Science advances
|August 27, 2025
PubMed
Resumen
Este resumen es generado por máquina.

El sistema nervioso utiliza codificación eficiente, no inferencia bayesiana, para mejorar la precisión del movimiento mediante el ajuste de recursos basados en estadísticas ambientales. Este estudio revela cómo el control motor se adapta a situaciones impredecibles.

Más Videos Relacionados

Study Motor Skill Learning by Single-pellet Reaching Tasks in Mice
06:04

Study Motor Skill Learning by Single-pellet Reaching Tasks in Mice

Published on: March 4, 2014

21.3K
Recording Single Neurons' Action Potentials from Freely Moving Pigeons Across Three Stages of Learning
11:20

Recording Single Neurons' Action Potentials from Freely Moving Pigeons Across Three Stages of Learning

Published on: June 2, 2014

12.1K

Videos de Experimentos Relacionados

Last Updated: Sep 10, 2025

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

8.6K
Study Motor Skill Learning by Single-pellet Reaching Tasks in Mice
06:04

Study Motor Skill Learning by Single-pellet Reaching Tasks in Mice

Published on: March 4, 2014

21.3K
Recording Single Neurons' Action Potentials from Freely Moving Pigeons Across Three Stages of Learning
11:20

Recording Single Neurons' Action Potentials from Freely Moving Pigeons Across Three Stages of Learning

Published on: June 2, 2014

12.1K

Área de la Ciencia:

  • La neurociencia
  • Control del motor
  • Neurociencia computacional

Sus antecedentes:

  • El sistema nervioso utiliza la información previa para mejorar la precisión del movimiento.
  • Los modelos actuales de control motor a menudo favorecen la inferencia bayesiana para la estimación del estado.
  • El papel de la codificación eficiente en el control motor está subestimado en comparación con la percepción.

Objetivo del estudio:

  • Para comparar la inferencia bayesiana y los marcos de codificación eficientes en el control motor.
  • Investigar cómo el sistema nervioso utiliza los priores a corto plazo en entornos impredecibles durante los movimientos de alcance.
  • Para aclarar los mecanismos computacionales subyacentes a la mejora de la precisión del movimiento.

Principales métodos:

  • Comparación de los modelos de codificación bayesianos y eficientes.
  • Análisis de los efectos secuenciales en los movimientos de alcance.
  • Investigación de la dinámica temporal y la variabilidad motora intrínseca.

Principales resultados:

  • Efectos secuenciales en los movimientos inesperadamente alineados con el modelo de codificación eficiente.
  • Los movimientos actuales mostraron un sesgo opuesto a los movimientos anteriores.
  • La variabilidad del movimiento disminuyó con alcances sucesivos similares, apoyando una codificación eficiente.

Conclusiones:

  • Los hallazgos apoyan el marco de codificación eficiente sobre los modelos bayesianos para la planificación motora.
  • La codificación eficiente reasigna dinámicamente los recursos basados en las estadísticas ambientales para el control del motor.
  • La planificación del control del motor está influenciada por mecanismos de codificación eficientes, especialmente en entornos impredecibles.