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:10/25/2014)... Minneapolis, Minnesota (PRWEB) October 25, 2014 ... a testing firm which verifies IT-accessibility for disabled ... their Access Approved® logo to Mackin Educational ... digital resource management system and to the ... for the "Own Best Medicine" website. ...
(Date:10/25/2014)... York (PRWEB) October 25, 2014 ... lawsuits ( http://www.vaginalmeshlawsuit2015.com/ ) filed against Boston ... in U.S. District Court, Southern District of West ... Judgment on Punitive Damages in a group of ... a ruling issued on October 21st, U.S. District ...
(Date:10/25/2014)... Steven Reinberg HealthDay ... The virus that causes common cold sores -- herpes simplex ... by Swedish researchers suggest. In fact, being a carrier ... of Alzheimer,s disease, the researchers found. "The identification ... dementia disorder is a breakthrough," said lead researcher Dr. Hugo ...
(Date:10/25/2014)... -- Current osteoporosis screening guidelines and tools fail ... for osteoporosis-related fractures, a new study says. ... tools that help us accurately predict who will ... target these at-risk people for preventive measures," study ... the division of general internal medicine and health ...
(Date:10/22/2014)... On Saturday, October 25, 2014, the Brownsville Community Health Center ... fair ¡Vive tu vida! Get Up! Get Moving!®. The event ... health and wellness for people of all ages and all ... public, will be held at Dean Porter Park, 501 E. ... , “¡Vive tu Vida! Get Up! Get Moving!® helps ...
Breaking Medicine News(10 mins):Health News:IT-Accessibility Award Granted to Education and Health Care for Section 508/WCAG 2Health News:IT-Accessibility Award Granted to Education and Health Care for Section 508/WCAG 3Health News:Transvaginal Mesh Lawsuits Move Forward, As Federal Judge Denies Motion for Summary Judgment on Punitive Damages in Florida Cases, Bernstein Liebhard LLP Reports 2Health News:Transvaginal Mesh Lawsuits Move Forward, As Federal Judge Denies Motion for Summary Judgment on Punitive Damages in Florida Cases, Bernstein Liebhard LLP Reports 3Health News:Transvaginal Mesh Lawsuits Move Forward, As Federal Judge Denies Motion for Summary Judgment on Punitive Damages in Florida Cases, Bernstein Liebhard LLP Reports 4Health News:Studies Link Cold Sore Virus to Alzheimer's Risk 2Health News:Studies Link Cold Sore Virus to Alzheimer's Risk 3Health News:Osteoporosis Screening Guidelines May Miss Younger Women at Risk 2Health News:Brownsville Community Health Center Presents Fourth Annual ¡Vive Tu Vida! Get Up! Get Moving!® Event 2Health News:Brownsville Community Health Center Presents Fourth Annual ¡Vive Tu Vida! Get Up! Get Moving!® Event 3Health News:Brownsville Community Health Center Presents Fourth Annual ¡Vive Tu Vida! Get Up! Get Moving!® Event 4
... Suite for the Assessment of the Urinary SystemCHICAGO, April ... and MR imaging systems to physician practices, announced today ... that the U.S. Food and Drug Administration (FDA) has ... package for the assessment of urinary anatomy using multi-slice ...
... District Offers 23andMe Personal Genome Service™ at Health Centers to Encourage Preventive ... ... 27, 2009 -- 23andMe , Inc., an industry leader in personal ... district in California, today announced that PPH will be offering the 23andMe ...
... Society of Breast Surgeons Conference Reveals New Diagnostic ... 27 A study from Beth Israel Medical ... cancer was found in 9 percent of patients ... complement mammography, substantially impacting surgical treatment. A total ...
... Investment Trust Inc. (NYSE: CRE ), today ... before the market opens on Monday, May 11, 2009.The Company ... at 11:00 a.m. Eastern Time to discuss the first quarter ... 888-549-7750 or by visiting the Company,s website at ...
... April 27 The Healthcare Group at ... its 2009 Quarterly Analyst Briefing Presentation on the ... held on Wednesday, April 29, 2009 at 3 ... especially those in high acuity areas, are very ...
... OnCore(r) clinical research management system epitomizes the collaborative development process of ... only sports a sleek new user interface but also incorporates over ... ... Madison, Wis. (PRWEB) April 27, 2009 -- The latest version ...
Cached Medicine News:Health News:Neuisys Announces FDA Clearance of UroCARE 2Health News:23andMe and Palomar Pomerado Health Partner to Give PPH Members Access to Their Genetic Information 2Health News:23andMe and Palomar Pomerado Health Partner to Give PPH Members Access to Their Genetic Information 3Health News:23andMe and Palomar Pomerado Health Partner to Give PPH Members Access to Their Genetic Information 4Health News:Further Testing With Breast-Specific Gamma Imaging (BSGI) Uncovers Additional Cancer in Breast Cancer Patients, Changes Surgical Management 2Health News:Frost & Sullivan Discusses Impact of Economic Meltdown on the European High Acuity Monitoring Systems Markets 2Health News:Frost & Sullivan Discusses Impact of Economic Meltdown on the European High Acuity Monitoring Systems Markets 3Health News:OnCore(r) 9.0 Released: 'Top 5' Priorities and Collaborative Initiatives Cornerstones of Product Development 2Health News:OnCore(r) 9.0 Released: 'Top 5' Priorities and Collaborative Initiatives Cornerstones of Product Development 3Health News:OnCore(r) 9.0 Released: 'Top 5' Priorities and Collaborative Initiatives Cornerstones of Product Development 4
(Date:10/22/2014)... HAMILTON, N.J. , Oct. 22, 2014 ... CLIA-certified, CAP-accredited laboratory which specializes in high ... that it is now offering new Cystic ... including next- generation DNA sequencing platforms. ... a genetically inherited multisystem disorder that affects ...
(Date:10/22/2014)... , Oct 22, 2014 Antigen Discovery ... Irvine, California , announced the receipt of a ... Innovation Research award (SBIR) from the National Institute of Dental and ... the development of a Pan-HIV Protein Microarray Chip, which ... and HIV-2 subtypes and aid in the development of ...
(Date:10/22/2014)... AVACEN Medical announced today that its AVACEN ... clearance by the U.S. Food and Drug Administration. This ... the Internet for: the temporary relief of joint ... and sprains . Logo - http://photos.prnewswire.com/prnh/20141021/153513 ... is a sophisticated medical device incorporating over 3,000 firmware ...
Breaking Medicine Technology:Medical Diagnostic Laboratories, L.L.C. Institute for Biomarker Research Announces New Prenatal Cystic Fibrosis Tests 2Biomarker Discovery Company, Antigen Discovery Inc., Awarded an NIH Phase I Small Business Innovation Research Grant to Develop a Pan-HIV Protein Microarray Chip 2AVACEN Medical Announces FDA Clearance of First Medical Device with Internal Game Mode 2
... International,Inc. (NYSE: BAX ) announced today that ... IX proteins to treat hemophilia B.,Baxter will develop ... of acute bleeding episodes and a chemically modified, ... of bleeding in,hemophilia B patients. Hemophilia B is ...
... Nanoparticles May Deliver Treatments to Human,Organs -, PHILADELPHIA, ... iron-bearing particles to drive healthy cells to,targeted sites in ... to,a new method of delivering cells and genes to ... http://www.newscom.com/cgi-bin/prnh/20080107/DC10966 ), The study team, led by ...
Cached Medicine Technology:Baxter Announces Recombinant Factor IX Development Program For Hemophilia B 2Baxter Announces Recombinant Factor IX Development Program For Hemophilia B 3Researchers Use Magnetism to Target Cells to Animal Arteries 2Researchers Use Magnetism to Target Cells to Animal Arteries 3Researchers Use Magnetism to Target Cells to Animal Arteries 4
... sunwear, inspired by modern American ... with long lasting wearability. The ... include sophistication, elegance and enduring ... modern shapes, classic styling and ...
... mounting technology has redefined rimless collections forever.,The ... at the end of each frame mounting. ... the bushing that mounts within the lens. ... secure fit is created that far exceeds ...
... collection celebrates the 85th anniversary of the ... feel, the unmistakable icons that made GUCCI ... and sunglass collection, dedicated to a multifaceted ... design that is the hallmark of the ...
... Whisper NG Erbium YAG Extended Ablation laser ... true laser peel with outstanding results and no ... a proprietary fluence level with an extra long ... skin. Peeling is spread over 3-5 days, ...
Medicine Products: