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

Vision01:24

Vision

53.5K
Vision is the result of light being detected and transduced into neural signals by the retina of the eye. This information is then further analyzed and interpreted by the brain. First, light enters the front of the eye and is focused by the cornea and lens onto the retina—a thin sheet of neural tissue lining the back of the eye. Because of refraction through the convex lens of the eye, images are projected onto the retina upside-down and reversed.
53.5K
Association Areas of the Cortex01:21

Association Areas of the Cortex

5.4K
Association areas are regions of the cerebral cortex that do not have a specific sensory or motor function. Instead, they integrate and interpret information from various sources to enable higher cognitive processes such as memory, learning, and decision-making. Some key association areas include the following:
Prefrontal Association Area: This area is located in the frontal lobe and is involved in planning, decision-making, and moderating social behavior. It connects with primary motor areas,...
5.4K
Visual System01:26

Visual System

591
Light enters the eye through the cornea, a transparent, dome-shaped surface covering the surface of the eyeball that helps to direct and focus incoming light. This light is then channeled toward the pupil, an adjustable opening whose size is controlled by the iris. The iris, a pigmented muscle, regulates the amount of light entering the eye by contracting or dilating the pupil, thereby ensuring optimal light levels for clear vision.
Once through the pupil, the light passes through the lens, a...
591
Anatomy of the Eyeball01:20

Anatomy of the Eyeball

7.1K
The eye is a spherical, hollow structure composed of three tissue layers. The outer layer — the fibrous tunic, comprises the sclera — a white structure — and the cornea, which is transparent. The sclera encompasses some of the ocular surface, most of which is not visible. However, the 'white of the eye' is distinctively visible in humans compared to other species. The cornea, a clear covering at the front of the eye, enables light penetration. The eye's middle...
7.1K
Motor and Sensory Areas of the Cortex01:14

Motor and Sensory Areas of the Cortex

3.9K
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....
3.9K
Parallel Processing01:20

Parallel Processing

157
The brain processes sensory information rapidly due to parallel processing, which involves sending data across multiple neural pathways at the same time. This method allows the brain to manage various sensory qualities, such as shapes, colors, movements, and locations, all concurrently. For instance, when observing a forest landscape, the brain simultaneously processes the movement of leaves, the shapes of trees, the depth between them, and the various shades of green. This enables a quick and...
157

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

Investigating the temporal dynamics and modeling of mid-level feature representations in humans.

Imaging neuroscience (Cambridge, Mass.)·2026
Same author

A 7T fMRI dataset of synthetic images for out-of-distribution modeling of vision.

Nature communications·2026
Same author

Hippocampal-prefrontal connectivity relates to inter-individual differences and training gains in distinguishing similar memories.

Communications biology·2025
Same author

Publisher Correction: In silico discovery of representational relationships across visual cortex.

Nature human behaviour·2025

Related Experiment Video

Updated: Jul 11, 2025

Detecting Pre-Stimulus Source-Level Effects on Object Perception with Magnetoencephalography
09:25

Detecting Pre-Stimulus Source-Level Effects on Object Perception with Magnetoencephalography

Published on: July 26, 2019

6.9K

Alpha-frequency feedback to early visual cortex orchestrates coherent naturalistic vision.

Lixiang Chen1, Radoslaw M Cichy1, Daniel Kaiser2,3

  • 1Department of Education and Psychology, Freie Universität Berlin, Berlin 14195, Germany.

Science Advances
|November 10, 2023
PubMed
Summary

The brain uses rhythmic cortical feedback, specifically alpha activity, to integrate visual information for coherent perception. This feedback shapes early visual processing, revealing how we construct our visual world.

More Related Videos

Development of a Gaze-Contingent Display Framework Designed for Perceptual and Oculomotor Research with Simulated Central Vision Loss
07:12

Development of a Gaze-Contingent Display Framework Designed for Perceptual and Oculomotor Research with Simulated Central Vision Loss

Published on: April 11, 2025

402
Using Looming Visual Stimuli to Evaluate Mouse Vision
05:07

Using Looming Visual Stimuli to Evaluate Mouse Vision

Published on: June 13, 2019

11.3K

Related Experiment Videos

Last Updated: Jul 11, 2025

Detecting Pre-Stimulus Source-Level Effects on Object Perception with Magnetoencephalography
09:25

Detecting Pre-Stimulus Source-Level Effects on Object Perception with Magnetoencephalography

Published on: July 26, 2019

6.9K
Development of a Gaze-Contingent Display Framework Designed for Perceptual and Oculomotor Research with Simulated Central Vision Loss
07:12

Development of a Gaze-Contingent Display Framework Designed for Perceptual and Oculomotor Research with Simulated Central Vision Loss

Published on: April 11, 2025

402
Using Looming Visual Stimuli to Evaluate Mouse Vision
05:07

Using Looming Visual Stimuli to Evaluate Mouse Vision

Published on: June 13, 2019

11.3K

Area of Science:

  • Neuroscience
  • Cognitive Science
  • Visual Perception

Background:

  • The brain integrates scattered visual inputs to create coherent percepts during naturalistic vision.
  • The role of rhythmic cortical feedback in this visual integration process remains unclear.

Purpose of the Study:

  • To investigate whether rhythmic cortical feedback mediates visual integration.
  • To identify the neural mechanisms underlying the integration of visual information.

Main Methods:

  • Electroencephalography (EEG) and functional magnetic resonance imaging (fMRI) were used.
  • Naturalistic videos with manipulated spatiotemporal coherence were presented across visual hemifields.

Main Results:

  • EEG data showed feedforward gamma activity for incoherent stimuli and feedback alpha activity for coherent stimuli.
  • fMRI data implicated scene-selective cortex and human middle temporal complex (hMT) as feedback sources.
  • Combined EEG-fMRI analysis revealed alpha-band feedback shapes early visual processing.

Conclusions:

  • Visual integration relies on rhythmic cortical feedback.
  • Alpha activity plays a crucial role in feedback-mediated visual integration.
  • Feedback rhythms span the entire visual hierarchy to construct coherent visual experiences.