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 Experiment Video

Updated: Jun 4, 2026

A Novel Approach for Documenting Phosphenes Induced by Transcranial Magnetic Stimulation
07:29

A Novel Approach for Documenting Phosphenes Induced by Transcranial Magnetic Stimulation

Published on: April 1, 2010

Chinese character recognition using simulated phosphene maps.

Ying Zhao1, Yanyu Lu, Chuanqing Zhou

  • 1Department of Biomedical Engineering, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, China.

Investigative Ophthalmology & Visual Science
|February 2, 2011
PubMed
Summary
This summary is machine-generated.

Related Concept Videos

You might also read

Related Articles

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

Sort by
Same author

Low-PSMA hormone-sensitive prostate cancer: a distinct clinical and molecular state.

Molecular medicine (Cambridge, Mass.)·2026
Same author

Gut Microbiota Changes Following Aerobic Exercise in Malnourished Octogenarians: An Assessor-Blinded Intervention Study Stratified by Nutritional Status.

Nutrients·2026
Same author

A Dynamic Virtual Channel Approach to Enhance Retinal Prosthetic Precision.

Biomimetics (Basel, Switzerland)·2026
Same author

Spatiotemporal Double-Edged Sword of Macrophages: Temporal Regulation of Neuroinflammation and Neurorepair in Ischemic Stroke.

Journal of immunology research·2026
Same author

Psychological symptoms as the initial manifestation of choline kinase β-related muscular dystrophy.

Journal of translational internal medicine·2026
Same author

Retinal hemodynamics and oxygen metabolism: potent inflammatory indicators for thyroid eye disease.

BMC ophthalmology·2026

Altering simulated phosphene maps in visual prosthetics significantly impacts Chinese character recognition. Distortion and pixel dropout are key factors affecting accuracy, guiding future visual prosthesis development.

Area of Science:

  • Biomedical Engineering
  • Computer Vision
  • Neuroscience

Background:

  • Visual prosthetics aim to restore vision using artificial stimulation.
  • Phosphene maps generated by visual prosthetics can be modified.
  • Understanding phosphene map effects is crucial for prosthetic efficacy.

Purpose of the Study:

  • To investigate Chinese character (CC) recognition by normally sighted subjects using altered simulated phosphene maps.
  • To determine the impact of specific phosphene map parameters on visual recognition performance.

Main Methods:

  • Thirty normally sighted volunteers participated.
  • CC recognition accuracy and response times were measured.
  • Parameters manipulated included distortion, pixel dropout, pixel size variability, and gray level.

More Related Videos

Interaction between Phonological and Semantic Processes in Visual Word Recognition using Electrophysiology
05:38

Interaction between Phonological and Semantic Processes in Visual Word Recognition using Electrophysiology

Published on: June 29, 2021

State-Dependency Effects on TMS: A Look at Motive Phosphene Behavior
12:38

State-Dependency Effects on TMS: A Look at Motive Phosphene Behavior

Published on: December 28, 2010

Related Experiment Videos

Last Updated: Jun 4, 2026

A Novel Approach for Documenting Phosphenes Induced by Transcranial Magnetic Stimulation
07:29

A Novel Approach for Documenting Phosphenes Induced by Transcranial Magnetic Stimulation

Published on: April 1, 2010

Interaction between Phonological and Semantic Processes in Visual Word Recognition using Electrophysiology
05:38

Interaction between Phonological and Semantic Processes in Visual Word Recognition using Electrophysiology

Published on: June 29, 2021

State-Dependency Effects on TMS: A Look at Motive Phosphene Behavior
12:38

State-Dependency Effects on TMS: A Look at Motive Phosphene Behavior

Published on: December 28, 2010

Main Results:

  • Increased distortion, dropout, and pixel size variability reduced CC recognition accuracy and increased response times.
  • Pixel gray level had minimal impact, except at eight levels.
  • Specific parameter thresholds were identified to maintain 80% accuracy.

Conclusions:

  • Phosphene map distortion, dropout, and pixel size variability significantly affect pixelated CC recognition.
  • Future visual prosthetics may enable CC recognition and reading for users.
  • Findings will aid visual prosthesis researchers in optimizing phosphene map designs for improved patient outcomes.