SEP 17, 2016 3:41 PM PDT

A New Look at the Role of Cone Cells of the Eye

WRITTEN BY: Carmen Leitch

Most biology textbooks will tell you that photoreceptors are either rods, which are for seeing in low levels of light in black and white, while cone cells are for color vision. There are different cones for different wavelengths, in other words for sensing different colors.

New research done at the University of California, Berkeley and published in Science Advances has shown however, that not all cones are for color vision; some don't detect colors at all. The majority of them simply sent a signal of light to the brain. The work required an advanced eye-tracking device that could follow the rapid movement of the eyes. Their results came after repeated stimulation of 273 cone cells, done with two lab members. A better understanding of how these cells work may one day lead to therapeutics for color blindness and other diseases of the eye.
About the Author
  • Experienced research scientist and technical expert with authorships on over 30 peer-reviewed publications, traveler to over 70 countries, published photographer and internationally-exhibited painter, volunteer trained in disaster-response, CPR and DV counseling.
You May Also Like
JAN 21, 2021
Plants & Animals
Western Monarch Migration Near Extinction
JAN 21, 2021
Western Monarch Migration Near Extinction
Earlier this week, the Xerces Society for Invertebrate Conservation reported that the western monarch butterfly populati ...
FEB 19, 2021
Plants & Animals
What can Lemurs Teach us About Love?
FEB 19, 2021
What can Lemurs Teach us About Love?
Although not entirely accurate, romantic sentiments such as "you're my lobster" or "you're my pen ...
MAY 02, 2021
Space & Astronomy
Average Day on Venus Lasts 243 Earth Days
MAY 02, 2021
Average Day on Venus Lasts 243 Earth Days
Although Venus is our planet’s closest neighbour, its fundamental properties have remained largely unknown. Now th ...
MAY 23, 2021
Space & Astronomy
Why Do Some Stars Vanish from Space?
MAY 23, 2021
Why Do Some Stars Vanish from Space?
Current theories suggest that stars undergo changes on timescales of millions or billions of years, and that their end i ...
MAY 28, 2021
Plants & Animals
Wild Gorillas Adopt Orphaned Babies
MAY 28, 2021
Wild Gorillas Adopt Orphaned Babies
An analysis of over 50 years of data reveals that with the help of their social group, orphaned mountain gorillas do jus ...
JUN 24, 2021
Space & Astronomy
European Space Agency to Launch Satellite Made from Plywood
JUN 24, 2021
European Space Agency to Launch Satellite Made from Plywood
Modern spacecraft are typically made out of carbon fiber composites. Now, however, the European Space Agency has announc ...
Loading Comments...