Featured Post from University of Rochester

Research Matters: Can Neurons Transmit Light?

University of Rochester's Pablo Postigo says there are indications that light can be transmitted through neuron axons.

Apr 17, 2025

1 min

Neurons, the cells in brains and spinal cords that make up the central nervous system, communicate by firing electrical pulses. But scientists have found hints that neurons may transmit light as well, which would profoundly change our current understanding of how the nervous system works.


CaptionResizeWrap TextRemove


Researchers from the University of Rochester have begun an ambitious project to study if living neurons can transmit light through their axons — the long, tail-like nerve fibers of neurons that resemble optical fibers.


“There are scientific papers offering indications that light transport could happen in neuron axons, but there’s still not clear experimental evidence,” says the principal investigator, Pablo Postigo, a professor at the university's Institute of Optics. “Scientists have shown that there is ultra-weak photon emission in the brain, but no one understands why the light is there.”



If light is at play and scientists can understand why, it could have major implications for medically treating brain diseases and drastically change the way physicians heal the brain.


To learn more about Postigo's research, contact him at ppostigo@ur.rochester.edu.

You might also like...

Check out some other posts from University of Rochester

1 min

Need a music expert? John Covach hits the right notes

Attention music journalists: When there are developments in the music industry — whether it be the emergence of a new sound, a growing trend in experiencing and listening to music, or the death of an influential artist — John Covach lends valuable perspective to your stories. Covach, a prominent rock and pop music historian who directs the Institute of Popular Music at the University of Rochester, is regularly sought out by news outlets around the world. He recently helped The New York Times explain what made the album “Pet Sounds” a masterpiece for Beach Boys chief songwriter Brian Wilson. He has offered commentary to the New York Daily News on why artists might relinquish ownership of their music. Last year, he offered thoughts to The Boston Globe on the timeless appeal of aging rock ‘n’ rollers who are still packing arenas. “It doesn’t matter that they can’t sing the high notes anymore,” Covach told The Globe. “It doesn’t matter that they’re kind of stooped over. We’re seeing the person we remember from 40 or 50 years ago.” Covach is a wealth of knowledge and an accessible expert. Connect with him by clicking on his profile.

1 min

In the News: School Choice and Vouchers

A Trump administration proposal to use the federal tax code to offer vouchers that students could use to attend private secular or religious schools has reignited public debate over school choice. David Figlio, a professor of economics and education at the University of Rochester whose research on vouchers has been widely cited, is available to offer insight on the matter. A recent study he co-authored on a school choice program in Ohio showed that low-income children in the program were likely to realize significant and positive academic benefits. Figlio warned in an interview with National Public Radio, though, that the results need to be taken “with a grain of salt.” “This program was a highly targeted program that bears little resemblance to the statewide, universal vouchers that are being rolled out today,” he said. Figlio’s research spans a wide range of education and health policy issues, from school accountability and standards to welfare policy and the intersection between education and health. Contact Figlio by clicking on his profile.

1 min

Companies pay a price for taking a stand on polarizing issues

News that Target’s sluggish first quarter earnings were partly due to consumers protesting the retail giant’s rollback on diversity, equity, and inclusion (DEI) policies, may have some people wondering why any company would take a position on a politically divisive issue. David Primo, a professor of political science and business administration at the University of Rochester, says political polarization across the country has forced the hands of some corporate executives to take a stand. Perhaps not surprisingly, Americans are split on whether they want big business wading into social and political minefields. “It’s pretty straight forward to think that a corporation ought to be taking positions on issues related to its core business operations,” Primo says. “The challenge for an executive, who has a fiduciary responsibility to the company, is knowing where to draw the line.” Primo regularly shares his insights on a variety of topics with business journalists and political reporters. Recently, he spoke to USA Today about consumers boycotting major retailers. Contact him by clicking on his profile.

View all posts
Powered by