Social Media Sidebar

Announcement

Please sign up, comment on articles and bring your friends!

Current poll

PlanetTech is asking:

What do you think about our new web site?

Love it, indeed
Really good solution
Same as old one
The old one was better
This is a new option

Quote of the day

People say we're running out of energy. That's only true if we stick with these old 19th century technologies. We are awash in energy from sunlight.

 

Ray Kurzweil

 

Woman Sees 100 Times More Colors Than The Average Person

RATE THIS! +31
Posted in Science on 15th Oct, 2014 09:46 PM by AlexMuller

When Concetta Antico looks at a leaf, she sees much more than just green. “Around the edge I’ll see orange or red or purple in the shadow; you might see dark green but I’ll see violet, turquoise, blue,” she said. “It’s like a mosaic of color.” Antico doesn’t just perceive these colors because she’s an artist who paints in the impressionist style.

 

She’s also a tetrachromat, which means that she has more receptors in her eyes to absorb color. The difference lies in Antico's cones, structures in the eyes that are calibrated to absorb particular wavelengths of light and transmit them to the brain. The average person has three cones, which enables him to see about one million colors. But Antico has four cones, so her eyes are capable of picking up dimensions and nuances of color, an estimated 100 million of them, that the average person cannot. “It’s shocking to me how little color people are seeing,” she said.

 
Although tetrachromats have more receptors in their eyes, their brains are wired the same way as a person with normal vision. So how can a brain like Antico’s change to see more colors? Like anything else, practice makes perfect, even when it comes to neural pathways. For years, researchers weren’t sure tetrachromacy existed. If it did, they stipulated, it could only be found in women. This is because of the genes behind color vision. People who have regular color vision have three cones, tuned to the wavelengths of red, green, and blue.
 
These are connected to the X chromosome, men have one, but women have two. Mutations in the X chromosome cause a person to perceive more or less color, which is why men more commonly have congenital colorblindness than women (if their one X chromosome has a mutation). But the theory stood that if a woman received two mutated X chromosomes, she could have four cones instead of the usual three.

Tags: colorvisioneyesartbrain

Read original article » Back to category

Comments

Author: Guest
Posted: 2014-10-16
+2
It is great to find out about benefits and enhancement of some functions due to genetic changes, something that makes us better rather than cause a disease Reply


 

Recent headlines

  • Posted in Science on 2017-10-22 20:21:21
    Moon colonization: many lava tube caves, water and high.....read more
    Posted in Software on 2017-10-22 20:09:36
    Localethereum promises quick and easy.....read more
    Posted in Medicine on 2017-10-22 20:05:14
    Doctors May Have Found a New Use for Ketamine..read more
    Posted in Science on 2017-10-22 04:22:31
    Blue Origin’s Breakthrough Means SpaceX Finally Has a.....read more
    Posted in Business on 2017-10-22 04:17:51
    Bitcoin boom prompts growth of coin-mining malware..read more
Posted in Business on 2013-10-10 01:33
China is working towards a manned lunar mission in about.....read more
Posted in Business on 2013-10-20 07:17
Spacex says China is their main competitor for commercial.....read more
Posted in Software on 2013-10-20 06:43
Pirate Bay Browser Clocks 1,000,000 Downloads..read more
Posted in Medicine on 2013-10-10 02:10
Google reportedly investing hundreds of millions into new.....read more
Posted in Medicine on 2013-10-14 03:13
Endothelial Cells Can Repair and Regenerate Organs,.....read more
Posted in Science on 01.01.2010
Spacex says China is their main competitor for commercial.....read more
Posted in Science on 01.01.2010
Staring at Your Phone Could Be Making You Short Sighted..read more
Posted in Science on 01.01.2010
Oculus Rift virtual reality headset coming to mobile, but.....read more
Posted in Science on 01.01.2010
China is working towards a manned lunar mission in about.....read more
Posted in Science on 01.01.2010
Delivering drugs via nanoparticles to target mitochondria..read more

Recent Blog Posts

  • Posted by AlexMuller
    Scientists probe Neptune's depths to reveal secrets of icy.....read more
    Posted by AlexMuller
    New terahertz imaging approach could speed up skin cancer.....read more
    Posted by AlexMuller
    Rebutting the claim that antidepressants do not work..read more
    Posted by AlexMuller
    Artificial neural networks decode brain activity during.....read more
    Posted by AlexMuller
    Four Earth-sized planets detected orbiting the nearest.....read more

Login to your Account

Login to your PlanetTech Account here

Username:
Password:
Remember me
or

Create a New Account

You just need username and password

The following errors occured:
Username:
Email:
Password:
Verify password:
Remember me