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

54.8K
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.
54.8K
Parallel Processing01:20

Parallel Processing

203
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...
203
Visual System01:26

Visual System

644
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...
644

You might also read

Related Articles

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

Sort by
Same author

An Evolutionary Patient Journey in Uveal Melanoma.

Pigment cell & melanoma research·2026
Same author

Clarifications about there being two necessary conditions for consciousness.

Trends in cognitive sciences·2026
Same author

An open multi-center MEG-EEG dataset for studying conscious visual perception.

Scientific data·2026
Same author

Forgetting and blame: When cognitive lapses excuse and when they backfire.

Journal of experimental psychology. Applied·2026
Same author

An open-access multi-site fMRI dataset for investigating conscious visual perception.

Scientific data·2026
Same author

Large-scale functional overlap between dorsal and ventral object-responsive networks.

Research square·2026

Related Experiment Video

Updated: Aug 16, 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

7.0K

Prestimulus oscillatory brain activity interacts with evoked recurrent processing to facilitate conscious visual

Kristina Krasich1, Claire Simmons2, Kevin O'Neill2,3

  • 1Center for Cognitive Neuroscience, Duke Institute for Brain Sciences, Duke University, Durham, NC, 27708, USA. kristina.krasich@duke.edu.

Scientific Reports
|December 22, 2022
PubMed
Summary

Prestimulus alpha brain waves, specifically their phase, interact with neural processing to enable conscious visual perception. This interaction is crucial for accurately perceiving masked visual stimuli.

More Related Videos

Stimulus-specific Cortical Visual Evoked Potential Morphological Patterns
09:42

Stimulus-specific Cortical Visual Evoked Potential Morphological Patterns

Published on: May 12, 2019

6.1K
Extracting Visual Evoked Potentials from EEG Data Recorded During fMRI-guided Transcranial Magnetic Stimulation
09:36

Extracting Visual Evoked Potentials from EEG Data Recorded During fMRI-guided Transcranial Magnetic Stimulation

Published on: May 12, 2014

13.9K

Related Experiment Videos

Last Updated: Aug 16, 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

7.0K
Stimulus-specific Cortical Visual Evoked Potential Morphological Patterns
09:42

Stimulus-specific Cortical Visual Evoked Potential Morphological Patterns

Published on: May 12, 2019

6.1K
Extracting Visual Evoked Potentials from EEG Data Recorded During fMRI-guided Transcranial Magnetic Stimulation
09:36

Extracting Visual Evoked Potentials from EEG Data Recorded During fMRI-guided Transcranial Magnetic Stimulation

Published on: May 12, 2014

13.9K

Area of Science:

  • Neuroscience
  • Cognitive Psychology
  • Visual Perception

Background:

  • Prestimulus alpha-band oscillations are implicated in modulating sensory processing and perception.
  • Recurrent processing, often indexed by the visual awareness negativity (VAN), is thought to underlie conscious visual perception.
  • The interaction between ongoing neural oscillations and stimulus-evoked activity in conscious perception remains incompletely understood.

Purpose of the Study:

  • To investigate the interplay between prestimulus alpha-band activity and stimulus-elicited recurrent processing.
  • To determine how this interaction facilitates conscious visual perception, particularly under conditions of perceptual masking (Object Substitution Masking - OSM).
  • To examine the role of prestimulus alpha phase in modulating stimulus-evoked neural activity and subsequent perception.

Main Methods:

  • Participants performed a visual perception task using Object Substitution Masking (OSM) to perceptually mask visual stimuli.
  • Electroencephalography (EEG) was used to record prestimulus alpha-band power and phase, as well as stimulus-evoked event-related potentials (ERPs).
  • Analysis focused on the relationship between prestimulus alpha activity, VAN-like ERP components, and behavioral performance (cue perception).

Main Results:

  • Attenuated prestimulus alpha power correlated with increased stimulus-evoked negativity (VAN-like activity) but not improved perception.
  • Elevated prestimulus alpha power, when coupled with an optimal prestimulus alpha phase, predicted greater VAN-like negativity and enhanced cue perception.
  • Suboptimal prestimulus alpha phase, despite elevated alpha power, led to reduced VAN-like negativity and impaired cue perception.

Conclusions:

  • Prestimulus alpha-band activity, particularly its phase, plays a critical role in enabling temporally selective recurrent processing.
  • This phase-dependent recurrent processing, reflected by VAN-like activity, is essential for facilitating conscious visual perception in challenging conditions like OSM.
  • The findings highlight a dynamic interaction between ongoing neural oscillations and stimulus processing for conscious awareness.