How the visual brain's flexibility differs between younger and older adults
Synaptic Plasticity in Young versus Aged Visual Cortex
This research tests whether short periods of darkness followed by re-exposure to light can restore brain flexibility to help adults with amblyopia or age-related vision loss.
Quick facts
| Grant type | R01 grant |
|---|---|
| Study type | NIH-funded research |
| Funding institution | University of Wisconsin-Madison NIH-funded |
| Lab location | 1 site (Madison, United States) |
| Project ID | NIH-11096018 on NIH RePORTER |
What this research studies
Researchers are exploring whether dark exposure followed by light reintroduction can 'reboot' connections in the visual cortex to restore plasticity. They compare young and aged brains and examine changes in synapses, receptors, and presynaptic function to understand why plasticity declines with age. Most work uses animal models and molecular lab methods to map the cellular and molecular steps that permit recovery. The aim is to find targets that could lead to treatments helping adults regain visual function.
Who could benefit from this research
Good fit: Adults (21+) with a history of amblyopia or age-related visual impairment would be the most likely candidates for future related clinical trials.
Not a fit: People whose vision loss stems from irreversible structural eye damage (for example advanced retinal degeneration or complete optic nerve injury) are unlikely to benefit from brain-plasticity approaches.
Why it matters
Potential benefit: If successful, this could point to new treatments that reopen brain plasticity and improve vision recovery in adults with amblyopia or age-related decline.
How similar studies have performed: Previous preclinical work, including the investigators' own studies, has shown that dark exposure followed by light can reopen plasticity in adult animal visual cortex, but translation to human treatments is not yet proven.
Where this research is happening
Madison, United States
- University of Wisconsin-Madison — Madison, United States (Active)
Researchers
- Principal investigator: Quinlan, Elizabeth Mary — University of Wisconsin-Madison
- Study coordinator: Quinlan, Elizabeth Mary
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.