Navigation Links
'Blind' Man Navigates Obstacle Course Without Error
Date:12/22/2008

Researchers say finding suggests alternate vision routes in the brain

MONDAY, Dec. 22 (HealthDay News) -- Call it a case of second sight: Scientists report that a blind man in Switzerland was able to make his way through a maze, even though he has no conscious sensation of seeing the world around him.

This phenomenon is an indication that the human brain has ways of processing vision beyond those that are currently understood, the scientists said.

Visual skills include mechanisms "for orienting and doing in the world rather than for understanding," study lead author Beatrice de Gelder, a researcher at Tilburg University in the Netherlands and Harvard Medical School, said in a news release.

Scientists were already aware of a phenomenon called "blindsight," in which the sightless show the ability to sense things around them. In the case of the man profiled in the new study, for example, he can sense facial expressions, and his brain shows signs of reacting to the emotions shown on the faces of others.

But the study authors said the man also has a skill not seen before in the blind -- the ability to navigate a maze, in this case a series of boxes and chairs placed in his way.

The man, whose age and name were not disclosed, suffered two strokes that damaged the visual centers of his brain. He can't see, and brain scans show no signs of activity in the visual centers, the study authors said.

The researchers wrote that the man walks like a blind man and only gets around with the assistance of another person or a cane.

Still, as the study authors reported in the Dec. 23 issue of the journal Current Biology, the man was able to navigate the maze without any problem and didn't require the help of an assistant who stood by in case he stumbled.

The researchers said it's possible, though unlikely, that the man used sound waves to detect the location of the obstacle
'/>"/>

Copyright©2008 ScoutNews,LLC.
All rights reserved

Page: 1 2

Related medicine news :

1. Can brain-injured, partially-blind stroke patients regain some of their lost vision?
2. New discovery may improve treatment of one of the worlds leading causes of blindness
3. Verizon Awards $1.5 Million Grant to Expand American Foundation for the Blinds Web Site for Seniors With Age-Related Vision Loss
4. Blinded by the Light? Vision Problems and Visual Discomfort Make Driving in the Dark Difficult, Uncomfortable for Most Americans
5. Diabetes: A Top Cause of Blindness Among Adults
6. Survey Confirms Americans Have a True Blind Spot Regarding Their Eye Health - and the Real Danger of UV Rays
7. STEP HIV vaccine study to be unblinded
8. Gene therapy safety trial for childhood blindness under way
9. National Federation of the Blind to Award $100,000
10. Blind humans lacking rods and cones retain normal responses to non-visual effects of light
11. Champion of blinded soldiers, Congressman Murtha, is Man of Vision
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:10/20/2014)... (PRWEB) October 20, 2014 ... Voicheck as Assistant Director of their CentralSource ... in managing the innovative turnkey drug sourcing, distribution, ... Matthew brings over 12 years of industry experience, ... Myoderm at the peak of their international success ...
(Date:10/20/2014)... 20, 2014 Succeed is proud to announce ... who participated in the Every Body Walk! campaign ... awareness project that encourages workers to be more active outside ... Program, which concluded at the end of September, was a ... and metro areas. Participating companies gave their staff pedometers ...
(Date:10/20/2014)... 2014 National Teen Driver Safety Week is ... Academy of Pediatrics (Ohio AAP, http://www.ohioaap.org ) is joining ... of teen drivers to talk to their teens and always ... vehicle crashes are the leading cause of death for U.S. ... fatal crashes, and 859 (42%) of those teen drivers were ...
(Date:10/20/2014)... Unveiled at the Sept. 18 board meeting, The ... member hospital ROI on membership dues at 12.5. In other ... $12.50 in value to member hospitals. The calculation used to ... Dues. , “This is the first time we’ve actually ... the methodology is really sound,” said Bill Ryan , ...
(Date:10/20/2014)... October 20, 2014 Punzoné , the ... the U.S., has a lot to celebrate this month. October ... recognizes the achievements and contributions of Americans of Italian heritage ... Punzoné, and today it shares its favorite Italian cocktails and ... to Italy - even if it is only in a ...
Breaking Medicine News(10 mins):Health News:Myoderm Hires Matthew Voicheck to Lead Turnkey Drug Sourcing Service 2Health News:Succeed Management Solutions, LLC Competes in Walking Challenge and Achieves 12th Place in Portland 2Health News:Ohio AAP Promotes National Teen Driver Safety Week 2Health News:Scorecard Estimates Hospital ROI at $12.50 for every $1 Spent on Dues 2Health News:Scorecard Estimates Hospital ROI at $12.50 for every $1 Spent on Dues 3Health News:Scorecard Estimates Hospital ROI at $12.50 for every $1 Spent on Dues 4Health News:Celebrate Italian Heritage Month With Authentic Cocktails from Punzoné: The Only Ultra Premium Line of Organic Imported Italian Vodka 2Health News:Celebrate Italian Heritage Month With Authentic Cocktails from Punzoné: The Only Ultra Premium Line of Organic Imported Italian Vodka 3Health News:Celebrate Italian Heritage Month With Authentic Cocktails from Punzoné: The Only Ultra Premium Line of Organic Imported Italian Vodka 4
... China, Dec. 16 /PRNewswire-Asia-FirstCall/ -- China Sky One,Medical, ... (Nasdaq: CSKI ), a,leading fully integrated ... of China ("PRC"), announced today that it,successfully obtained ... Drug,Administration (SFDA) in China for two additional drugs: ...
... Mountains Re Ltd., the reinsurance unit of White Mountains Insurance Group, ... Chief Financial Officer, will retire from full-time work at the end ... assessment advisor to White Mountains. , , ... "Over the last 7 years Chuck has filled many roles within ...
... MED3OOO, Inc., a national healthcare management, technology, and Emergency Medical ... City of Newark, Ohio recover lost EMS transport revenue that ... , After partnering with MED3OOO for EMS ... & EMS department is now able to bill and collect ...
... CeloNova BioSciences, Inc., announced,today that it has ... and,Drug Administration (FDA) for Embozene(TM) Color-Advanced Microspheres which,are ... with a,large number of blood vessels in many ... U.S. commercial sales of,Embozene(TM) Microspheres will begin immediately. ...
... MAR, Calif., Dec. 16 While all cosmetic surgery,can ... not to,hear, feel or remember their surgery - a ... (Photo: http://www.newscom.com/cgi-bin/prnh/20081216/LATU002 ) ... form of iv sedation, pioneered by anesthesiologist Dr. Barry ...
... vacancies faster and more efficiently, Fresho.com offers bulk job posting and announces ... , ... New York, NY (PRWEB) December 16, 2008 -- In order to ... decline, job search engine Fresho.com now offers employers to submit ...
Cached Medicine News:Health News:China Sky One Medical, Inc. Obtains Production Rights for Two Additional Drugs 2Health News:China Sky One Medical, Inc. Obtains Production Rights for Two Additional Drugs 3Health News:White Mountains Re Announces Management Changes -- Chokel to Retire and Remain Risk Advisor at WTM 2Health News:White Mountains Re Announces Management Changes -- Chokel to Retire and Remain Risk Advisor at WTM 3Health News:White Mountains Re Announces Management Changes -- Chokel to Retire and Remain Risk Advisor at WTM 4Health News:City of Newark, Ohio Increases Safety Services with EMS Revenue Recovered by MED3OOO EMS Billing 2Health News:City of Newark, Ohio Increases Safety Services with EMS Revenue Recovered by MED3OOO EMS Billing 3Health News:CeloNova BioSciences Receives FDA Market Approval for Embozene(TM) Color-Advanced Microspheres Embolization Platform 2Health News:CeloNova BioSciences Receives FDA Market Approval for Embozene(TM) Color-Advanced Microspheres Embolization Platform 3Health News:CeloNova BioSciences Receives FDA Market Approval for Embozene(TM) Color-Advanced Microspheres Embolization Platform 4Health News:Cosmetic Surgery -'Goldilocks' Anesthesia Is Not Mickey Mouse 2Health News:Fresho.Com Offers Efficient Job Postings for Employers and Recruiters 2
(Date:10/20/2014)... 20, 2014 Valeritas, Inc., a leader in ... with Type 2 diabetes, announced today that it has ... The award was presented October 16 th at ... Ohio . The Cardinal Health ... variety of metrics specifically targeted at the importance of ...
(Date:10/20/2014)... , Oct. 20, 2014 Pharmaceutic Labs ... facility in Albany, NY for ... The company meets and/or exceeds the FDA standards for ... 21 CFR Part 211. The 10,000 ... highest levels of quality assurance and quality control. The ...
(Date:10/19/2014)... , Oct. 20, 2014 CTI BioPharma Corp. ... will report its third quarter 2014 financial results on ... U.S. financial markets. Following the announcement, members of the ... discuss the results and provide a general corporate update ... the event can be obtained as follows: ...
Breaking Medicine Technology:Valeritas Receives 2014 Cardinal Health Supply Chain Excellence Award 2Valeritas Receives 2014 Cardinal Health Supply Chain Excellence Award 3CTI BioPharma to Report Third Quarter 2014 Financial Results on October 29, 2014 2
... Anlit Advanced Nutrition Supplements , an ... for children, will present new and innovative products at ... 2012 in Geneva, Switzerland. Anlit will showcase new ... at Stand 3500. The company will present, among others, ...
... 2012  Luminex Corporation (NASDAQ: LMNX ) today announced ...  Financial and operating highlights include the following: , ... increase over the first quarter of 2011 , First ... over the first quarter of 2011 , First quarter ...
Cached Medicine Technology:Anlit to Present New Dietary Supplements for Children at Vitafoods Europe 2012 2Luminex Corporation Reports First Quarter 2012 Results 2Luminex Corporation Reports First Quarter 2012 Results 3Luminex Corporation Reports First Quarter 2012 Results 4Luminex Corporation Reports First Quarter 2012 Results 5Luminex Corporation Reports First Quarter 2012 Results 6Luminex Corporation Reports First Quarter 2012 Results 7Luminex Corporation Reports First Quarter 2012 Results 8
... The NU-5510 DHD AutoFlow Direct ... HEPA filtration guarantying the greatest control ... cycles, both at 95C wet decontamination ... are exceptionally useful for cell line ...
... CO2 Incubators by Cedco enhance ... precise temperature and CO2 control. ... RH% is displayed digitally. Functions ... are displayed digiton large, easy ...
... By combining the corrosion resistance ... antibacterial properties of copper, SANYO offers ... sterile, long-lasting and maintenance-free. The sterile ... valid test results and the safety ...
ArcticTemp Upright Freezer -20C. Quick, even freezing. Heavy duty compressor. Deep door racks. Front gated bottom shelf. Interior light. Locks One year warranty on unit and 5 year warranty on compres...
Medicine Products: