Daily Health Headlines

Brain's Visual Center Similar in Sighted and Those Blind From Birth

👤by Robert Preidt 0 comments 🕔Wednesday, April 15th, 2015

TUESDAY, April 14, 2015 (HealthDay News) -- The way the brain organizes its visual sense is the same in people who are blind from birth and sighted people, a new study shows.

The findings challenge the long-held belief that the brain's visual cortex -- which handles the sense of sight -- doesn't develop properly in people who are blind from birth.

"The brain's map is hardwired, possibly dependent on genetically driven processes that do not need any external sensory information for their activation," said study co-lead researcher Amir Amedi, associate professor of medical neurobiology at the Hebrew University of Jerusalem.

The researchers used functional MRI to monitor activity in the visual cortex of people born blind and people with sight. Both groups had the same type of wiring in the visual cortex, researchers found.

This was true even in blind people whose eyes did not develop normally, according to the study published April 13 in the journal Brain.

"Though the 'blind brain' wiring may change greatly in the blind in its frontal language related parts, it still retains the most fundamental organizational principles of the visual cortex -- known as 'retinotopic mapping' -- the processing of two-dimensional visual images through the eye," Amedi said in a university news release.

The findings suggested that many features of visual cortex development do not require visual experience to progress, and that the visual cortex does not lose all of its properties even when a person has no vision.

Amedi added that the findings suggest "it may be possible to successfully teach blind people to 'see with sounds.'"

-- Robert Preidt

Article Credits / Source

Robert Preidt / HealthDay

Robert Preidt wrote this story for HealthDay. HealthDay provides up to the minute breaking health news. Click here to view this full article from HealthDay.

SOURCE: Hebrew University of Jerusalem, news release, April 13, 2015

View More Articles From Robert Preidt 🌎View Article Website

Sponsored Product

Lunar Sleep for $1.95

Lunar Sleep for $1.95

People who have trouble sleeping typically have low levels of melatonin, so melatonin supplements seem like a logical fix for insomnia. There is a high demand for sleep aids, especially in the U.S. The National Health Interview Survey done in 2002, and again in 2007, found 1.6 million US adults were using complementary and alternative sleep aids for insomnia. Lunar Sleep was a top choice. Use Promo Code: Sleep2014 and only pay $1.95 S&H.

Get Lunar Sleep for $1.95

More Eyesight Articles

Doctors Use iPads to Treat 'Lazy Eye,' With Mixed Results

Doctors Use iPads to Treat 'Lazy Eye,' With Mixed Results0

THURSDAY, Nov. 10, 2016 (HealthDay News) -- Does playing video games on an iPad work better than standard eye-patching for improving vision in children with lazy eye? Two new studies in the journal JAMA Ophthalmology reach seemingly ...

Some Primates Have Vision Troubles as They Age

Some Primates Have Vision Troubles as They Age0

TUESDAY, Nov. 8, 2016 (HealthDay News) -- Just like humans, some primates start having difficulty seeing things up close as they age. Researchers reviewed photos of 14 wild bonobos as they groomed each other. The primates were between 11 and 45 ...

Paintball Causes Many Vision-Robbing Eye Injuries

Paintball Causes Many Vision-Robbing Eye Injuries0

THURSDAY, Nov. 4, 2016 (HealthDay News) -- Paintball guns pose the greatest risk of vision loss among the sports most commonly associated with eye injuries, a new study finds. Basketball, cycling and baseball injuries to the eye occur more ...

Health Tip: Are Your Screens Causing Eye Strain?

Health Tip: Are Your Screens Causing Eye Strain?0

(HealthDay News) -- Staring at your TV, computer, smart phone or tablet can cause a problem known as computer vision syndrome, or digital eye strain. The American Optometric Association says to watch for these warning signs: Feeling that ...

Mediterranean Diet, Caffeine May Be Good for Your Eyes

Mediterranean Diet, Caffeine May Be Good for Your Eyes0

THURSDAY, Oct. 20, 2016 (HealthDay News) -- Eating a Mediterranean diet and consuming caffeine may lower your chances of developing age-related macular degeneration (AMD), a leading cause of blindness, according to a new study. Previous ...

View More Eyesight Articles

0 Comments

Write a Comment

Your email address will not be published. Required fields are marked *

Our Mailing List

Subscribe to our mailing list to get the latest health news as it breaks!

Your information will not be shared with anyone!