Navigation Links
Tool manipulation is represented similarly in the brains of the blind and the sighted
Date:6/23/2010

Blind people think about manipulating tools in the same regions of the brain as do people who can see, according to a new study. The researchers say this adds to evidence that the brain has a fairly defined organization, while still being able to adapt to unusual conditions, such as not having any vision.

When you look at a glass in front of you on the desk, it sets off a lot of reactions in your brain. Part of your brain categorizes it: "That's a glass!" Another part of the brain thinks about the glass's shape and size, its exact location, and what you would have to do with your hand and arm if you were going to reach out and grab it. All that activity goes on even if you just look at the glass. This is a complicated set of thoughts, linking visual information and motor control. A few years ago, Bradford Z. Mahon, Jens Schwarzbach, and Alfonso Caramazza of the University of Trento in Italy investigated the first part categorizing the item and found that blind people did this in the same part of the brain as people with vision, even though it seems on the surface to be linked directly to visual information.

For the new study, the researchers wanted to see if the same was true of the second part thinking about how to manipulate the object. To do that, they scanned the brains of blind and sighted volunteers while they thought about tools and other objects. Each person laid in an MRI scanner while they heard a set of words from a category either tools, like saw, scissors, and fork; animals, like butterfly, turtle, and cat; and objects you don't manipulate, like bed, fence, and table. Functional MRI scanning showed which parts of the brain are active when the volunteer heard each word. Blind people, even people who were born blind, tended to think about a tool in the same part of the brain as a sighted person. And, like visual people, a non-tool like a cat or a fence generally didn't spark those same regions of the brain. The research is published in Psychological Science, a journal of the Association for Psychological Science.

"I think the exciting implication is that the way that our brains process the world may be less dependent on our experience than previously thought," says Mahon. "It doesn't mean experience is not important. Experience is critical for providing all of the content that we represent about the world. But how that content is organized in our brain seems to be highly constrained, and the interesting possibility is that those constraints are built in by genetics."


'/>"/>

Contact: Catherine Allen-West
cwest@psychologicalscience.org
202-293-9300
Association for Psychological Science
Source:Eurekalert

Related medicine news :

1. Connecticut Board Considers Warning About Risk Of Stroke Following Chiropractic Neck Manipulation
2. More Recruiting of Underrepresented Minorities Needed at U.S. Medical Schools, Study Says
3. Christian Audigier Represented at Divine Design for Project Angel Food
4. Gay mens bilateral brains better at remembering faces: York U study
5. Adolescent brains biologically wired to engage in risky behavior, study finds
6. Blood flows differently through the brains of schizophrenic patients
7. SKyPRO Releases Public Beta of GWTalk at BrainShare
8. Morphine May Protect Brains of People With HIV
9. SharpBrains Launches First Brain Fitness Innovation Awards to Recognize Neuroplasticity Pioneers
10. Scientists Tweak Subjects Brains to Alter Their Moral Choices
11. MessageSolution First in the Market to Offer All-in-One, Integrated Cloud-Based Archiving for Email, File Systems and SharePoint at Novell BrainShare 2010
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:6/25/2016)... (PRWEB) , ... June 25, 2016 , ... Conventional wisdom ... of success. In terms of the latter, setting the bar too high can result ... more than just slow progress toward their goal. , Research from PsychTests.com ...
(Date:6/24/2016)... ... ... was in a crisis. Her son James, eight, was out of control. Prone to extreme ... “When something upset him, he couldn’t control his emotions,” remembers Marcy. “If there was ... other children and say he was going to kill them. If we were driving ...
(Date:6/24/2016)... Diego, CA (PRWEB) , ... June 24, 2016 , ... ... with the American Cancer Society and the Road To Recovery® program to drive cancer ... to seniors and other adults to ensure the highest quality of life and ongoing ...
(Date:6/24/2016)... ... June 24, 2016 , ... ... to recognize Dr. Barry M. Weintraub as a prominent plastic surgeon and the ... in the world, and the most handsome men, look naturally attractive. Plastic surgery ...
(Date:6/24/2016)... ... 2016 , ... Venture Construction Group (VCG) sponsors Luke’s Wings ... at the Woodmont Country Club at 1201 Rockville Pike, Rockville, Maryland, 20852. The ... members that have been wounded in battle and their families. Venture Construction Group is ...
Breaking Medicine News(10 mins):
(Date:6/24/2016)... SAN CLEMENTE, Calif. , June 24, 2016 /PRNewswire/ ... pulmonary function testing company, is now able to perform sophisticated lung ... ndd Medical Technologies , Inc. Patients are ... labs.  Thanks to ndd,s EasyOne PRO ® , ARL patients like ... any needed testing done in the comfort of her own home. ...
(Date:6/24/2016)... , June 24, 2016 VolitionRx ... of Dr. Edward Futcher to the ... effective June 23, 2016.Dr. Futcher was also appointed ... Governance Committees.  As a non-executive member of the ... and strategic counsel to VolitionRx in connection with ...
(Date:6/23/2016)... 2016 Any dentist who has made an implant ... process. Many of them do not even offer this as ... high laboratory costs involved. And those who ARE able to ... a high cost that the majority of today,s patients would ... Parsa Zadeh , founder of Dental Evolutions Inc. and inventor ...
Breaking Medicine Technology: