About My Health Careers Internship MedBlogs Contact us
Medindia LOGIN REGISTER
Advertisement

Study Explains How Light Helps Activate Brain Among Blind

by Rukmani Krishna on November 6, 2013 at 12:08 AM
Font : A-A+

 Study Explains How Light Helps Activate Brain Among Blind

A study has showed that light enhances brain activity during a cognitive task even in people who are totally blind.

Researchers at the University of Montreal and Boston's Brigham and Women's Hospital's findings contribute to scientists' understanding of everyone's brains, as they also revealed how quickly light impacts on cognition.

Advertisement

Senior co-author Steven Lockley said that they were stunned to discover that the brain still respond significantly to light in these rare three completely blind patients despite having absolutely no conscious vision at all.

He said that light doesn't just allow us to see, it tells the brain whether it's night or day which in -turn ensures that our physiology, metabolism and behavior are synchronized with environmental time.
Advertisement

Senior co-author Julie Carrier said that for diurnal species like ours, light stimulates day-like brain activity, improving alertness and mood, and enhancing performance on many cognitive tasks.

The results indicate that their brains can still "see", or detect, light via a novel photoreceptor in the ganglion cell layer of the retina, different from the rods and cones we use to see.

Scientists believe, however, that these specialized photoreceptors in the retina also contribute to visual function in the brain even when cells in the retina responsible for normal image formation have lost their ability to receive or process light.

Source: ANI
Advertisement

Advertisement
News A-Z
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
News Category
What's New on Medindia
Printed Temperature Sensors help with Continuous Temperature Monitoring
Health Benefits of Giloy
Breast Cancer Awareness Month 2021 - It's time to RISE
View all

Medindia Newsletters Subscribe to our Free Newsletters!
Terms & Conditions and Privacy Policy.

More News on:
Parkinsons Disease Parkinsons Disease Surgical Treatment Brain Brain Facts Ataxia Language Areas in The Brain Ways to Improve your Intelligence Quotient (IQ) 

Recommended Reading
Diabetic Retinopathy
The term 'diabetic retinopathy' refers to changes in the retina which often occur in people with ......
Usher Syndrome
Usher syndrome is a rare genetic disease which is the leading cause of deaf-blindness in humans....
Congenital Blindness Linked to Lower Thermal Pain Threshold
A team of researchers have investigated whether congenitally blind subjects experience pain a bit .....
Ataxia
Ataxia affects coordination. Gait becomes unstable and the patient loses balance. The cerebellum or ...
Language Areas in The Brain
The mechanism of how human brain processes the language to express and comprehend the verbal, writte...
Parkinsons Disease
Parkinson’s disease is a neurodegenerative disease caused by progressive dopamine brain cells loss. ...
Ways to Improve your Intelligence Quotient (IQ)
Intelligence quotient (IQ) is a psychological measure of human intelligence. Regular physical and me...

Disclaimer - All information and content on this site are for information and educational purposes only. The information should not be used for either diagnosis or treatment or both for any health related problem or disease. Always seek the advice of a qualified physician for medical diagnosis and treatment. Full Disclaimer

© All Rights Reserved 1997 - 2021

This site uses cookies to deliver our services. By using our site, you acknowledge that you have read and understand our Cookie Policy, Privacy Policy, and our Terms of Use