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

Relative Motion Analysis using Rotating Axes01:25

Relative Motion Analysis using Rotating Axes

433
Consider a component AB undergoing a linear motion. Along with a linear motion, point B also rotates around point A. To comprehend this complex movement, position vectors for both points A and B are established using a stationary reference frame.
However, to express the relative position of point B relative to point A, an additional frame of reference, denoted as x'y', is necessary. This additional frame not only translates but also rotates relative to the fixed frame, making it...
433
Absolute Motion Analysis- General Plane Motion01:24

Absolute Motion Analysis- General Plane Motion

193
Visualize a drone, with its propellers spinning rapidly, hovering mid-air. The fascinating movements and operations of this drone can be comprehended by applying the principle of general plane motion.
As the drone's propellers rotate, an upward force is generated that counteracts the force of gravity, enabling the drone to lift off from the ground. This initial movement of the drone is along a straight path, representing a form of translational motion. In this phase, every point on the...
193
Relative Motion Analysis - Velocity01:24

Relative Motion Analysis - Velocity

328
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...
328
Curvilinear Motion: Rectangular Components01:23

Curvilinear Motion: Rectangular Components

363
Curvilinear motion characterizes the movement of a particle or object along a curved path, notably evident when envisioning a car navigating a winding road. If the car starts at point A, its position vector is established within a fixed frame of reference, where the ratio of the position vector to its magnitude signifies the unit vector pointing in the position vector's direction.
As the car advances, its position evolves over time. Quantifying the car's velocity involves computing the...
363
Propagation of Action Potentials01:25

Propagation of Action Potentials

4.7K
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...
4.7K
Relative Motion Analysis using Rotating Axes-Problem Solving01:29

Relative Motion Analysis using Rotating Axes-Problem Solving

370
Consider a crane whose telescopic boom rotates with an angular velocity of 0.04 rad/s and angular acceleration of 0.02 rad/s2. Along with the rotation, the boom also extends linearly with a uniform speed of 5 m/s. The extension of the boom is measured at point D, which is measured with respect to the fixed point C on the other end of the boom. For the given instant, the distance between points C and D is 60 meters.
Here, in order to determine the magnitude of velocity and acceleration for point...
370

You might also read

Related Articles

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

Sort by
Same author

Abrupt scene onsets and gradually emerging scene information produce distinct EEG decoding dynamics.

Journal of neurophysiology·2026
Same author

Distinct mechanisms of contextual modulation for dynamic natural scenes in motion- and scene-selective cortex.

Journal of neurophysiology·2026
Same author

Characterizing internal models of the visual environment.

Proceedings. Biological sciences·2025
Same author

End-to-end topographic networks as models of cortical map formation and human visual behaviour.

Nature human behaviour·2025
Same author

Representational shifts from feedforward to feedback rhythms index phenomenological integration in naturalistic vision.

Communications biology·2025
Same author

Enhanced and idiosyncratic neural representations of personally typical scenes.

Proceedings. Biological sciences·2025

Related Experiment Video

Updated: May 11, 2025

Mapping Cortical Dynamics Using Simultaneous MEG/EEG and Anatomically-constrained Minimum-norm Estimates: an Auditory Attention Example
08:45

Mapping Cortical Dynamics Using Simultaneous MEG/EEG and Anatomically-constrained Minimum-norm Estimates: an Auditory Attention Example

Published on: October 24, 2012

14.6K

Cortical alpha rhythms interpolate occluded motion from natural scene context.

Lu-Chun Yeh1, Max Bardelang1, Daniel Kaiser1,2

  • 1Neural Computation Group, Department of Mathematics and Computer Science, Physics, Geography, Justus Liebig University Gießen, Gießen, Germany.

Journal of Neurophysiology
|April 19, 2025
PubMed
Summary

Cortical alpha rhythms automatically predict object motion during occlusion, using scene context to guide expectations. This brain activity interpolates movement, even when objects are hidden, demonstrating context-dependent neural processing.

Keywords:
alpha oscillationsbiological motion perceptioncortical feedbackmultivariate pattern analysisobject permanence

More Related Videos

Author Spotlight: Deciphering Neural Circuit Formation from Two-Photon Microscopy and Single Neuron Imaging
06:18

Author Spotlight: Deciphering Neural Circuit Formation from Two-Photon Microscopy and Single Neuron Imaging

Published on: November 21, 2023

672
EEG Mu Rhythm in Typical and Atypical Development
11:50

EEG Mu Rhythm in Typical and Atypical Development

Published on: April 9, 2014

25.5K

Related Experiment Videos

Last Updated: May 11, 2025

Mapping Cortical Dynamics Using Simultaneous MEG/EEG and Anatomically-constrained Minimum-norm Estimates: an Auditory Attention Example
08:45

Mapping Cortical Dynamics Using Simultaneous MEG/EEG and Anatomically-constrained Minimum-norm Estimates: an Auditory Attention Example

Published on: October 24, 2012

14.6K
Author Spotlight: Deciphering Neural Circuit Formation from Two-Photon Microscopy and Single Neuron Imaging
06:18

Author Spotlight: Deciphering Neural Circuit Formation from Two-Photon Microscopy and Single Neuron Imaging

Published on: November 21, 2023

672
EEG Mu Rhythm in Typical and Atypical Development
11:50

EEG Mu Rhythm in Typical and Atypical Development

Published on: April 9, 2014

25.5K

Area of Science:

  • Neuroscience
  • Cognitive Science
  • Perception

Background:

  • Dynamic object tracking is essential for real-world navigation.
  • Understanding how the brain interpolates occluded motion is crucial for perception.

Purpose of the Study:

  • To investigate the role of top-down information flow, specifically cortical alpha rhythms, in mediating the interpolation of occluded object motion.
  • To determine if alpha rhythms process motion context-dependently.

Main Methods:

  • Electroencephalography (EEG) was used to record brain activity in participants viewing natural scenes.
  • Multivariate decoding techniques were applied to alpha-band EEG responses.
  • Participants performed an orthogonal task at fixation to isolate automatic processing.

Main Results:

  • Alpha-band EEG dynamics successfully decoded the direction of object movement.
  • During temporary occlusion, alpha dynamics interpolated the predicted movement of the object.
  • This interpolation was context-dependent, with alpha rhythms tracking motion termination when an obstacle was present.

Conclusions:

  • Cortical alpha rhythms automatically interpolate occluded object motion based on contextual cues from the environment.
  • Top-down processing via alpha oscillations integrates scene context to predict object trajectories.
  • This demonstrates a neural mechanism for real-time environmental understanding and prediction.