Navigation Links
Colorblind Individuals have expanded color vision

Deuteranamolous patients suffer from color blindness due to X-chromosome variations, which make them unable to differentiate between colors but have an increased sensitivity to differentiate two color dimensions//, which are unable to be differentiated by normal persons. The results of these studies carried out by Professor John Mollon and colleagues, University of Cambridge had been published in the Journal Current Biology.

Colors are differentiated by the eyes by cone photoreceptors, which are activated by different wavelengths and in X-chromosome linked variants they have an color blindness to differentiate different colors and these sensitivities are altered in deuteranomalous colorblind individuals because they possess a variant form of one of the cone photoreceptors--the sensitivity of cones that should be "middle-wave" is shifted toward that of "long-wave" cones, resulting in decreased ability to differentiate between some colors that are easily distinguishable by those with normal color vision. In theory, however, it is possible that owing to the altered sensitivities of their cone photoreceptors, deuteranomalous individuals may be sensitive to color differences that are not apparent to those with normal color vision.

The researchers conducted the experiment in deuteranamolous and "color-normal" individuals to report whether they were able to distinguish between pairs of colors that were theoretically predicted to look different to deuteranamolous colorblind individuals but to appear the same to those with normal color vision. Indeed, the researchers found that some color pairs were only seen to be different by deuteranamolous individuals. The finding suggests that although these individuals may be blind to some colors accessible by color-normal individuals, they also have a sensitivity to a "color dimension" that is inaccessible to those with normal color vision.

The researchers point out that because deuteranamolous colorblin dness is caused by an X-chromosome-linked genetic alteration, and because women randomly inactivate one of their two X chromosomes in each of their cells, women who are carriers of the deuteranamoly trait (and hence have one normal X chromosome) are predicted to express four types of cone photoreceptor--the three normal cone types, as well as the cone with a shifted wavelength sensitivity. Thought it is unclear whether this would appreciably affect color vision in a way that allows expanded color sensitivities without the colorblindness experienced by deuteranamolous individuals, a test similar to that utilized in the present study could potentially be used to test this possibility.

Source: Eurekalert
'"/>




Related medicine news :

1. Individuals with sleep related breathing disorders more prone to heart disease
2. Excess Weight Can Affect Individuals as They Age
3. Hypnosis Can Help Individuals Quit Smoking
4. Good News For Individuals Suffering From Frequent Throat Infections
5. Drug Found To Bring Relief For Individuals With Early Parkinson’
6. Individuals With Metabolic Syndrome At Risk of Dying From Heart Disease
7. Common Infections Found To Raise An Individuals Risk Of Having A Heart Attack Or Stroke
8. Individuals Born In May At A Higher Risk Of Developing Multiple Sclerosis
9. Gene Variation Associated With Better Mobility For Older Individuals
10. Increased Risk Of Kidney Failure In Obese Individuals
11. Diagnosing Prostate Cancer is Harder in Obese Individuals
Post Your Comments:
*Name:
*Comment:
*Email:


(Date:6/26/2016)... ... June 26, 2016 , ... Brent Kasmer, a legally blind and certified personal trainer is ... a fitness app. The fitness app plans to fix the two major problems leading the ... one size fits all type program , They don’t eliminate all the reasons ...
(Date:6/25/2016)... ... June 25, 2016 , ... ... issues and applications at AcademyHealth’s Annual Research Meeting June 26-28, 2016, at the ... several important health care topics including advance care planning, healthcare costs and patient ...
(Date:6/25/2016)... ... ... temporary closing of Bruton Memorial Library on June 21 due to a possible lice infestation, ... aspect of head lice: the parasite’s ability to live away from a human host, and ... necessary one in the event that lice have simply gotten out of control. , As ...
(Date:6/25/2016)... ... 25, 2016 , ... First Choice Emergency Room , the largest network ... the Medical Director of its new Mesquite-Samuell Farm facility. , “We are pleased ... location,” said Dr. James M. Muzzarelli, Executive Medical Director of First Choice Emergency Room. ...
(Date:6/25/2016)... , ... June 25, 2016 , ... ... and non-athletes recover from injury. Recently, he has implemented orthobiologic procedures as a ... area —Johnson is one of the first doctors to perform the treatment. Orthobiologics ...
Breaking Medicine News(10 mins):
(Date:6/23/2016)... -- Roche (SIX: RO, ROG; OTCQX: RHHBY) announced that ... PCT (procalcitonin) assay as a dedicated testing solution for ... clearance, Roche is the first IVD company in the ... risk assessment and management. PCT is a ... in blood can aid clinicians in assessing the risk ...
(Date:6/23/2016)... , June 23, 2016 Research and ... News Issue 52" report to their offering. ... influenza treatment creates a favourable commercial environment for MedImmune to ... patient base that will serve to drive considerable growth for ... would serve to cap sales considerably, but development is still ...
(Date:6/23/2016)... and INDIANAPOLIS , June 23, ... a Lilly Diabetes Tomorrow,s Leaders Scholarship is any indication, ... winners, announced today online at www.diabetesscholars.org by ... 1 diabetes stand in the way of academic and ... the Foundation,s scholarship program since 2012, and continues to ...
Breaking Medicine Technology: