Search research articles

ACERCA DE JoVE

Visión General Liderazgo Blog Centro de Ayuda JoVE

AUTORES

Proceso de Publicación Consejo Editorial Alcance y Políticas Revisión por Pares Preguntas Frecuentes Enviar

BIBLIOTECARIOS

Testimonios Suscripciones Acceso Recursos Consejo Asesor de Bibliotecas Preguntas Frecuentes

INVESTIGACIÓN

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archivo

EDUCACIÓN

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Centro de Recursos para Profesores Sitio de Profesores

Términos y Condiciones de Uso

Política de Privacidad

Videos de Conceptos Relacionados

Motor and Sensory Areas of the Cortex

Motor and Sensory Areas of the Cortex

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.

Somatosensory, Motor, and Association Cortex

Somatosensory, Motor, and Association Cortex

The somatosensory cortex in the parietal lobes is crucial for interpreting sensory data such as touch, temperature, and proprioception. The somatosensory cortex, situated in the parietal lobes, plays a vital role in interpreting sensory information like touch, temperature, and proprioception—awareness of body position. This specialized brain region features an organized structure wherein neurons at the top primarily process sensations originating from the lower body. In contrast, those at the...

Hierarchy of Motor Control

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.

Somatosensation

Somatosensation

The somatosensory system relays sensory information from the skin, mucous membranes, limbs, and joints. Somatosensation is more familiarly known as the sense of touch. A typical somatosensory pathway includes three types of long neurons: primary, secondary, and tertiary. Primary neurons have cell bodies located near the spinal cord in groups of neurons called dorsal root ganglia. The sensory neurons of ganglia innervate designated areas of skin called dermatomes.

Major Somatic Sensory Pathways

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...

Overview of Somatic Sensory Pathways

Overview of Somatic Sensory Pathways

Somatic sensory or somatosensory pathways refer to the neural pathways that carry information related to touch, pressure, pain, temperature, and proprioception from the skin, muscles, tendons, and joints to the brain. These pathways involve several stages of processing and integration of sensory information.
The somatosensory system is divided into three main pathways: the dorsal (or posterior) column-medial lemniscus, spinothalamic (or anterolateral), and spinocerebellar pathways.
The dorsal...

También podría leer

Artículos Relacionados

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

Ordenar por

Same author

Retrosplenial cortex enables context-dependent goal-directed sensorimotor transformation.

eLife·2026

Same author

Contextual gating of whisker-evoked responses by frontal cortex supports flexible decision making.

Nature communications·2026

Same author

Cortical circuits for whisker sensory perception-From barrel columns to brain-wide interactions.

Current opinion in neurobiology·2026

Same author

Biologically informed cortical models predict optogenetic perturbations.

eLife·2026

Same author

CoreTIA: a modular, statistically robust transduction inhibition assay for AAV neutralization.

Frontiers in immunology·2025

Same author

Bidirectional control of generalized absence epilepsy networks via real-time direct depolarization of thalamocortical neurons.

Progress in neurobiology·2025

Same journal

A native sulfur deposit in Gale crater, Mars.

Science (New York, N.Y.)·2026

Same journal

Coordinated demise of harmful algal blooms.

Science (New York, N.Y.)·2026

Same journal

Genetic effects put into context.

Science (New York, N.Y.)·2026

Same journal

Bacteria share proteins to survive antibiotics.

Science (New York, N.Y.)·2026

Same journal

Impacts shaped Earth's first continents.

Science (New York, N.Y.)·2026

Same journal

Erratum for the Report "Covalently bonded single-molecule junctions with stable and reversible photoswitched conductivity" by C. Jia <i>et al</i>.

Science (New York, N.Y.)·2026

Ver todos los artículos relacionados

Search research articles

Video Experimental Relacionado

Updated: Jun 6, 2026

In Vivo Wireless Optogenetic Control of Skilled Motor Behavior

In Vivo Wireless Optogenetic Control of Skilled Motor Behavior

Published on: November 22, 2021

El control motor por la corteza sensorial.

Ferenc Matyas¹, Varun Sreenivasan, Fred Marbach

¹Laboratory of Sensory Processing, Brain Mind Institute, Faculty of Life Sciences, École Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland.

Science (New York, N.Y.)

|November 27, 2010

Resumen

Este resumen es generado por máquina.

Los investigadores descubrieron una vía directa de control motor desde la corteza somatosensorial primaria (S1) hasta los movimientos de los bigotes en ratones. Esta vía retrae rápidamente los bigotes, ofreciendo una nueva perspectiva sobre la integración sensorimotora y la organización cortical.

Más Videos Relacionados

Combined Peripheral Nerve Stimulation and Controllable Pulse Parameter Transcranial Magnetic Stimulation to Probe Sensorimotor Control and Learning

Combined Peripheral Nerve Stimulation and Controllable Pulse Parameter Transcranial Magnetic Stimulation to Probe Sensorimotor Control and Learning

Published on: April 21, 2023

Corticospinal Excitability Modulation During Action Observation

Corticospinal Excitability Modulation During Action Observation

Published on: December 31, 2013

Videos de Experimentos Relacionados

Last Updated: Jun 6, 2026

In Vivo Wireless Optogenetic Control of Skilled Motor Behavior

In Vivo Wireless Optogenetic Control of Skilled Motor Behavior

Published on: November 22, 2021

Combined Peripheral Nerve Stimulation and Controllable Pulse Parameter Transcranial Magnetic Stimulation to Probe Sensorimotor Control and Learning

Combined Peripheral Nerve Stimulation and Controllable Pulse Parameter Transcranial Magnetic Stimulation to Probe Sensorimotor Control and Learning

Published on: April 21, 2023

Corticospinal Excitability Modulation During Action Observation

Corticospinal Excitability Modulation During Action Observation

Published on: December 31, 2013

Área de la Ciencia:

La neurociencia es la neurociencia.
El control del motor es el control del motor.
Los sistemas sensoriales son sistemas sensoriales.

Sus antecedentes:

Tradicionalmente se ha reconocido que la corteza motora primaria controla el movimiento de los mamíferos.
El sistema de bigotes en ratones es un modelo clave para el estudio de la integración sensorimotora.

Objetivo del estudio:

Investigar vías corticales alternativas para el control motor más allá de la corteza motora primaria.
Para aclarar el papel de la corteza somatosensorial primaria en los comportamientos sensoriales activos como el whisking.

Principales métodos:

Registros electrofisiológicos en ratones.
Análisis conductual de los movimientos de los bigotes.
La manipulación causal de la actividad neuronal en las córtices sensorial y motor.

Principales resultados:

Identificó una vía directa desde la corteza somatosensorial primaria hasta el control motor de los bigotes.
Demostró que la actividad primaria de la corteza somatosensorial impulsa directamente la retracción del bigote.
Se demostró que la actividad de la corteza motora primaria impulsa directamente la prolongación del bigote.

Conclusiones:

La corteza somatosensorial primaria juega un papel directo y significativo en el control motor de los bigotes.
Esta vía motora impulsada por los sentidos proporciona una rápida retroalimentación negativa para la integración sensoriomotriz.
Los hallazgos requieren una reevaluación de la organización funcional de los mapas corticales y los circuitos de control del motor.