Navigation Links
Seeing Is Believing Does Not Hold Good For Color Perception

It has been regarded that color perception is dependent on the specialized cells of the eye. This may no longer// be true as the results of a research state that our perception of color is controlled much more by our brains than by our eyes.

The number of color-sensitive cones in the human retina differs dramatically among people—by up to 40 times—yet people appear to perceive colors the same way. The study has shown that color perception goes far beyond the hardware of the eye, and leads to a lot of interesting questions about how and why we perceive color.

The researchers have exploited a technology known as adaptive optics that was originally used by astronomers. This laser-based system maps out the topography of the inner eye in exquisite detail that would not have been possible otherwise.

The pigment that allows each cone in the human eye to react to different colors is very fragile. For the experiment, the researchers allowed light to shine directly into the eye to determine what wavelengths each cone reflects and absorbs, and thus to which color each is responsive.

Each subject was asked to tune the color of a disk of light to produce a pure yellow light that was neither reddish yellow nor greenish yellow. Everyone selected nearly the same wavelength of yellow, showing that all of them had the same perception regarding the yellow color. However, there was a considerable discrepancy when the retinal cells were examined. It was infact greater than a 40:1 ratio, even when all the cases were ‘seeing’ the same color yellow.

This finding throws light on the fact that everyone tested had the same color experience despite the difference in his or her visual system. It is therefore believed that some kind of normalization or some kind of circuit in the brain should be present to balance the observed difference.

These experiments show that color is defined by our experience in the world, and since we all share the same world, we arrive at the same definition of colors. The team has focused itself towards identification of a genetic basis for this large variation between retinas.

Medindia on Anatomy of eye:

The retina is the eye's sensitive layer that sends visual signals to the brain. To produce a sharp image, the lens must remain cler.
'"/>




Related medicine news :

1. Womens Self-Esteem Not Lowered By Seeing Ultra Thin Models
2. Love is blind and Seeing is not Believing – Parents Don’t Believe Their Children Are Overweight!!
3. A Visually Impaired Patient Pioneers The Seeing Machine
4. Are Women Seeing the Most Experienced Breast Cancer Surgeons?
5. Seeing is Believing – Cigarette Packs in India to Carry Graphic Description of Risk
6. Love is blind and Seeing is not Believing – Parents Don’t Believe Their Children Are Overweight!!
7. Seeing is Believing – Cigarette Packs in India to Carry Graphic Description of Risk
8. Detecting Colorectal Cancer
9. Preventing Colorectal Cancer
10. Screening Test For Early Diagnosis Of Colorectal Cancer
11. Milk Found To Lower Colorectal-Cancer Risk By 12 %
Post Your Comments:
*Name:
*Comment:
*Email:


(Date:4/29/2016)... ... April 29, 2016 , ... The Gluten-Free Certification Program ... to announce the launch of the GFCP Scoop in response to ... purpose of the GFCP Scoop site is to keep the gluten-free ...
(Date:4/29/2016)... ... April 29, 2016 , ... Dr. Robert Mondavi, one of the ... Cosmetic dentistry is a fast-growing field as more patients are discovering the many different ... more about the options currently available to them and which ones might work for ...
(Date:4/29/2016)... , ... April 29, 2016 , ... Reltok Nasal Products ... products for the head and neck/ear, nose and throat specialty, has added the KOTLER ... The KOTLER NASAL AIRWAY™ is a newly patented safety device secured by nasal ...
(Date:4/29/2016)... ... April 29, 2016 , ... Jvion, ... round of funding led by Eastside Partners, with participation from existing investor Martin ... customer base and accelerate its technology and product roadmap. , “Jvion ...
(Date:4/29/2016)... ... 2016 , ... Regenerative Medicine Solutions (RMS) scored 94.8124 out of ... them second place for Tampa’s Best Places to Work. They were ranked in the ... great accomplishment for our team,” says RMS Human Resources Manager Irene Miller. “We work ...
Breaking Medicine News(10 mins):
(Date:4/28/2016)... , April 28, 2016   Click here ... Pharmacy, Inc. (NYSE: DPLO), the nation,s largest independent ... a definitive agreement to acquire Valley Campus Pharmacy, ... ("TNH"), a leading specialty pharmacy that provides individualized ... California . In 2015, TNH generated approximately ...
(Date:4/28/2016)... April 28, 2016  The blood testing market in ... according to Kalorama Information and The Freedonia Group in ... nucleic acid testing.  The healthcare research firm said that ... developing blood collection stations and in improving testing at ... Information,s report, Blood Testing Market in China ...
(Date:4/28/2016)... 28, 2016   Acsis , a leading provider ... IT market research and advisory firm IDC has named ... MarketScape: Worldwide Pharmaceutical Track and Trace Software 2016 Vendor ... an assessment of the capabilities and business strategies of ... market. Logo - http://photos.prnewswire.com/prnh/20160427/360791LOGO ...
Breaking Medicine Technology: