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:3/23/2017)... Alexandria, Virginia (PRWEB) , ... March 23, 2017 ... ... quality public health services to their communities, 16 more public health departments have ... This week’s decisions bring another 4.5 million people into the expanding network of ...
(Date:3/23/2017)... ... ... are unaware of the dangers that infectious bacteria play in mouth disease, while 1 out ... that dentists recommend. The ramifications of improper oral upkeep go far beyond bad breath and ... hours of work each year due to dental issues. That is why Mediaplanet is proud ...
(Date:3/23/2017)... ... March 23, 2017 , ... ... Los Angeles based healthcare technology company California Healthcom Group (CHG). , The ... and healthcare arena. With headquarters in California, CHG is a growing, internationally recognized ...
(Date:3/23/2017)... York City (PRWEB) , ... March 23, 2017 , ... ... last fall, FaceCradle , the most-funded travel pillow in crowdfunding history, ... speed delivery of its wildly popular travel innovation to Americans. , “We’re excited to ...
(Date:3/23/2017)... Los Angeles, CA (PRWEB) , ... March 23, 2017 , ... ... half of all Americans, yet poor sleep is likely not the only cause of ... these undesirable characteristics that make you look older or in poor health are likely ...
Breaking Medicine News(10 mins):
(Date:3/23/2017)... , March 23, 2017   BioSpace , ... resource, has partnered with Indiana Biosciences Research Institute ... organizations and educational institutions to bring the state,s ... first-ever BioIndiana Hotbed map, an artistic representation of the ... was presented to Vice President Mike Pence , ...
(Date:3/23/2017)... 23, 2017  Ethicon* today announced the completion ... privately held medical device company that manufactures and ... surgical treatment of Gastroesophageal Reflux Disease (GERD). This ... its portfolio of minimally invasive options for patients ... terms of the transaction have not been disclosed. ...
(Date:3/23/2017)... , March 23, 2017 CENTRO DE IMAGEM ... 157, paragraph 4 of Law 6,404/76 and Instruction 358/02 ... informs its shareholders and the market in general that ... subsidiary Centro de Diagnosticos por Imagem Ltda. (" CDI ... interest in RADIOLOGISTAS ASSOCIADOS LTDA. (" Partnership " and ...
Breaking Medicine Technology: