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

Motor and Sensory Areas of the Cortex01:14

Motor and Sensory Areas of the Cortex

2.7K
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...
2.7K
Somatosensory, Motor, and Association Cortex01:24

Somatosensory, Motor, and Association Cortex

371
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...
371
Motor Unit Stimulation01:20

Motor Unit Stimulation

1.4K
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...
1.4K
Direct Motor Pathways01:11

Direct Motor Pathways

1.7K
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...
1.7K

You might also read

Related Articles

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

Sort by
Same author

In vivo microelectrode arrays for neuroscience.

Nature reviews. Methods primers·2026
Same author

Continuous input drives motor cortical dynamics during reaching.

Research square·2026
Same author

A generative spike prediction model using behavioral reinforcement for re-establishing neural functional connectivity.

Nature computational science·2026
Same author

Positive Association Between Body Mass Index and the Likelihood of Reporting an Overall Cancer Diagnosis Among College Students in the United States.

Cancer medicine·2025
Same author

Trends and frontiers in disuse muscle atrophy research.

Frontiers in public health·2025
Same author

Extracting Preserved Neural Latent Dynamics Across Tasks using Convolutional Transformer-based Variational Autoendecoder.

Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference·2025
Same journal

Analysis of End-Tidal CO2 Variability During Plateau Waves Episodes: An Information Theoretic Approach<sup></sup>.

Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference·2025
Same journal

AI and Tomosynthesis for Breast Cancer Molecular Subtyping: A step toward precision medicine<sup></sup>.

Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference·2025
Same journal

Towards Sustainable Protein Recovery from Biological Waste: Assessing Polyethersulfone-based Microfiltration.

Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference·2025
Same journal

Analysis of the cardiovascular response to standardized polymicrobial peritonitis experimental model.

Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference·2025
Same journal

Automated Wrist Ultrasound Image Bone Enhancement and Segmentation Using Deep Learning.

Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference·2025
Same journal

A Deep Learning approach for Depressive Symptoms assessment in Parkinson's disease patients using facial videos.

Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference·2025
See all related articles

Related Experiment Video

Updated: May 24, 2025

Assessing Corticospinal Excitability During Goal-Directed Reaching Behavior
05:05

Assessing Corticospinal Excitability During Goal-Directed Reaching Behavior

Published on: December 2, 2022

1.6K

Investigating Internal Dynamics in Monkey's Primary Motor Cortex during Reaching.

Shicheng Qiu, Hongwei Mao, Shenghui Wu

    Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference
    |March 5, 2025
    PubMed
    Summary
    This summary is machine-generated.

    Rotational dynamics in motor cortex may be driven by external inputs, not internal neural processes. Analyzing monkey reaching movements reveals that common inputs significantly influence these dynamics during motor tasks.

    More Related Videos

    Design and Use of an Apparatus for Presenting Graspable Objects in 3D Workspace
    09:11

    Design and Use of an Apparatus for Presenting Graspable Objects in 3D Workspace

    Published on: August 8, 2019

    5.7K
    Investigating Object Representations in the Macaque Dorsal Visual Stream Using Single-unit Recordings
    07:08

    Investigating Object Representations in the Macaque Dorsal Visual Stream Using Single-unit Recordings

    Published on: August 1, 2018

    8.2K

    Related Experiment Videos

    Last Updated: May 24, 2025

    Assessing Corticospinal Excitability During Goal-Directed Reaching Behavior
    05:05

    Assessing Corticospinal Excitability During Goal-Directed Reaching Behavior

    Published on: December 2, 2022

    1.6K
    Design and Use of an Apparatus for Presenting Graspable Objects in 3D Workspace
    09:11

    Design and Use of an Apparatus for Presenting Graspable Objects in 3D Workspace

    Published on: August 8, 2019

    5.7K
    Investigating Object Representations in the Macaque Dorsal Visual Stream Using Single-unit Recordings
    07:08

    Investigating Object Representations in the Macaque Dorsal Visual Stream Using Single-unit Recordings

    Published on: August 1, 2018

    8.2K

    Area of Science:

    • Neuroscience
    • Motor Control
    • Computational Neuroscience

    Background:

    • Neural dynamics describe coordinated changes in neuron activity over time.
    • Rotational dynamics are observed in motor cortex neural states but their causes are unclear.
    • Motor control relies on neural dynamics influenced by local and external brain region activity.

    Purpose of the Study:

    • Investigate the impact of movement kinematics (velocity, acceleration) on rotational dynamics.
    • Determine the contribution of common inputs versus internal dynamics to rotational neural activity.
    • Analyze neural activity during a monkey's center-out reaching task.

    Main Methods:

    • Decomposed neural dynamics into common input-driven and internal components using a linear model.
    • Utilized single-trial neural data from macaque M1 (motor cortex).
    • Quantified rotational features by comparing internal and overall dynamics power and strength.

    Main Results:

    • Internal dynamics exhibited significantly weaker rotational features compared to overall dynamics.
    • Preliminary results suggest a strong influence of inputs on rotational dynamics.
    • Motor cortex neural activity shows less rotation in internal dynamics than in total dynamics.

    Conclusions:

    • Rotational dynamics in the motor cortex during reaching movements are likely primarily driven by continuous common inputs.
    • Internal neural processes contribute less to observed rotational dynamics than external inputs.
    • Understanding input-driven dynamics is crucial for explaining neural computations in motor control.