Natural-feeling electrical stimulation for brain implants to restore vision
Naturalistic electrical stimulation strategies for effective visual cortical prostheses
['FUNDING_R01'] · UNIVERSITY OF PENNSYLVANIA · NIH-11287849
Researchers are developing ways to deliver more natural electrical signals to the visual part of the brain so adults who are blind can perceive light and simple shapes.
Quick facts
| Phase | ['FUNDING_R01'] |
|---|---|
| Study type | Nih_funding |
| Sex | All |
| Sponsor | UNIVERSITY OF PENNSYLVANIA (nih funded) |
| Locations | 1 site (PHILADELPHIA, UNITED STATES) |
| Trial ID | NIH-11287849 on ClinicalTrials.gov |
What this research studies
This work aims to improve brain implants that stimulate the visual cortex to produce phosphenes, the spots of light some blind people can already perceive with stimulation. The team is designing electrical pulse patterns that follow normal brain activity instead of using fixed, artificial rhythms. They will use modern electrode arrays, computing, and wireless systems to deliver those patterns and measure how clearly people perceive visual information. The project includes lab and translational work that could involve testing at clinical sites.
Who could benefit from this research
Good fit: Ideal candidates are adults (typically 21+) with acquired blindness caused by eye or optic nerve damage whose visual cortex remains intact and who can undergo implant surgery.
Not a fit: People whose blindness is due to damage in the visual cortex itself, those who are not surgical candidates, or those with significant medical contraindications may not benefit.
Why it matters
Potential benefit: If successful, the approach could restore partial visual sensations that help blind adults detect light, shapes, or navigate more easily.
How similar studies have performed: Previous work shows direct cortical stimulation can produce phosphenes but has not yet delivered reliable, functional vision, so this naturalistic stimulation approach is promising but still experimental.
Where this research is happening
PHILADELPHIA, UNITED STATES
- UNIVERSITY OF PENNSYLVANIA — PHILADELPHIA, UNITED STATES (ACTIVE)
Researchers
- Principal investigator: YOSHOR, DANIEL — UNIVERSITY OF PENNSYLVANIA
- Study coordinator: YOSHOR, DANIEL
About this research
- This is an active NIH-funded research project — typically early-stage science, not a clinical trial accepting patient enrollment.
- Some NIH-funded labs run parallel clinical studies or seek volunteers for related work. To check, contact the principal investigator or institution listed above.
- For full project details, budget, and progress reports, visit the official NIH RePORTER page below.