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

Visual System01:26

Visual System

1.7K
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...
1.7K
Depth Perception and Spatial Vision01:15

Depth Perception and Spatial Vision

1.8K
Depth perception is the ability to perceive objects three-dimensionally. It relies on two types of cues: binocular and monocular. Binocular cues depend on the combination of images from both eyes and how the eyes work together. Since the eyes are in slightly different positions, each eye captures a slightly different image. This disparity between images, known as binocular disparity, helps the brain interpret depth. When the brain compares these images, it determines the distance to an object.
1.8K

You might also read

Related Articles

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

Sort by
Same author

Lower limb motion intention recognition using multi-source able-bodied gait signals.

Journal of neural engineering·2026
Same author

Quantitative analysis of evoked haptic sensations by transcutaneous electrical nerve stimulation for electrode array size optimization.

IEEE transactions on neural systems and rehabilitation engineering : a publication of the IEEE Engineering in Medicine and Biology Society·2026
Same author

Spatiotemporal dynamics of renal distal convoluted tubule dilatation and cyst formation in nephronophthisis type 1 mice.

Renal failure·2026
Same author

Domain-aware domain-class adaptation network for motor execution to motor imagery EEG classification.

Frontiers in neuroscience·2026
Same author

Noise-Driven Feature Enhancement of High-Frequency SSVEP Through Underdamped Second-Order Stochastic Resonance Energy Transfer.

IEEE transactions on neural systems and rehabilitation engineering : a publication of the IEEE Engineering in Medicine and Biology Society·2026
Same author

SCGait a novel method for person identification applied to legged robots.

Scientific reports·2026

Related Experiment Video

Updated: Jan 18, 2026

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

882

Enhancing performance of SSVEP-based visual acuity via exploiting subject-specific information.

Xiaowei Zheng1,2, Boyu Wen1, Xin Yan1

  • 1School of Mathematics, Northwest University, Xi'an, China.

Cognitive Neurodynamics
|September 9, 2025
PubMed
Summary

Subject-specific training methods significantly improve visual acuity assessment using steady-state visual evoked potentials (SSVEPs). Multi-way canonical correlation analysis (MwayCCA) demonstrated optimal performance for SSVEP signal preprocessing in visual acuity estimation.

Keywords:
Multi-way canonical correlation analysisSignal preprocessing methodSteady-state visual evoked potentialSubject-specific trainingVisual acuity

More Related Videos

Assessing Early Stage Open-Angle Glaucoma in Patients by Isolated-Check Visual Evoked Potential
07:11

Assessing Early Stage Open-Angle Glaucoma in Patients by Isolated-Check Visual Evoked Potential

Published on: May 25, 2020

6.8K
Author Spotlight: Insights into Visual Cortex Research Through Wide-View fMRI Mapping
07:11

Author Spotlight: Insights into Visual Cortex Research Through Wide-View fMRI Mapping

Published on: December 8, 2023

2.3K

Related Experiment Videos

Last Updated: Jan 18, 2026

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

882
Assessing Early Stage Open-Angle Glaucoma in Patients by Isolated-Check Visual Evoked Potential
07:11

Assessing Early Stage Open-Angle Glaucoma in Patients by Isolated-Check Visual Evoked Potential

Published on: May 25, 2020

6.8K
Author Spotlight: Insights into Visual Cortex Research Through Wide-View fMRI Mapping
07:11

Author Spotlight: Insights into Visual Cortex Research Through Wide-View fMRI Mapping

Published on: December 8, 2023

2.3K

Area of Science:

  • Neuroscience
  • Ophthalmology
  • Biomedical Engineering

Background:

  • Visual acuity assessment is crucial for eye health evaluation.
  • Steady-state visual evoked potentials (SSVEPs) offer an objective method for visual acuity measurement.
  • Enhancing SSVEP signal processing is key to improving objective visual acuity assessment accuracy.

Purpose of the Study:

  • To investigate the efficacy of subject-specific training methods in enhancing SSVEP-based visual acuity assessment.
  • To compare the performance of various preprocessing techniques, including canonical correlation analysis (CCA) variants, for SSVEP signals.
  • To identify the optimal method for improving the accuracy and reliability of objective visual acuity estimation.

Main Methods:

  • SSVEPs were recorded from eleven subjects using vertical sinusoidal gratings across six spatial frequencies.
  • Six-channel SSVEP signals were preprocessed using classical Oz single-channel, CCA, and five subject-specific methods: IT-CCA, MwayCCA, MsetCCA, TRCA, and CORCA.
  • MwayCCA and TRCA were selected for further analysis, alongside Oz-channel and CCA as controls, to estimate visual acuity.

Main Results:

  • Bland-Altman analysis revealed strong agreement between subjective (FrACT) and objective (SSVEP) visual acuity measurements across all tested methods.
  • MwayCCA achieved the highest agreement (0.188 logMAR), indicating superior performance in SSVEP visual acuity estimation.
  • Subject-specific training methods, particularly MwayCCA, demonstrated enhanced accuracy compared to traditional approaches.

Conclusions:

  • Subject-specific training methods significantly improve the performance of SSVEP-based visual acuity assessment.
  • Multi-way canonical correlation analysis (MwayCCA) is recommended as the preferred signal preprocessing approach for objective visual acuity estimation.
  • This study highlights the potential of advanced signal processing techniques to refine objective vision testing.