Navigation Links
Perceptual learning relies on local motion signals to learn global motion
Date:9/21/2009

Rockville, MD Researchers have long known of the brain's ability to learn based on visual motion input, and a recent study has uncovered more insight into where the learning occurs.

The brain first perceives changes in visual input (local motion) in the primary visual cortex. The local motion signals are then integrated in the later visual processing stages and interpreted as global motion in the higher-level processes.

But when subjects in a recent experiment using moving dots were asked to detect global motion (the overall direction of the dots moving together), the results show that their learning relied on more local motion processes (the movement of dots in small areas) than global motion areas.

"We had expected that higher-level processing could be more involved in task-relevant perceptual learning investigated in this study," said Dr. Shigeaki Nishina who conducted the research in Boston University and now belongs to the Honda Research Institute Japan. "Contrary to the expectation, the result suggested local motion signals are predominantly used for task-relevant perceptual learning of global motion, which was surprising to us."

Nishina said the results, which appear in the latest issue of Journal of Vision (http://www.journalofvision.org/9/9/15/) show that the improvement in detection of global motion is not due to learning of the global motion but to learning of local motion of the moving dots in the test.

The researchers said the study of perceptual learning can give scientists deeper insight not only about sensory systems but also the whole brain's adaptable nature.

"This line of study could give a guideline for optimizing human machine interface," said Nishina. "When we use a new machine, we need to learn how to get information from the machine. In our study, local motion signals were more important for the brain to learn a task base
'/>"/>

Contact: Jessie Williams
jwilliams@arvo.org
240-221-2924
Association for Research in Vision and Ophthalmology
Source:Eurekalert

Page: 1 2

Related medicine news :

1. EdOptions(TM) Offers Schools Affordable Solution to Ensure Continuity of Learning
2. Back to School - Dramatic Medical Help and Hope for the Learning Disabled
3. Computers Might Make Learning Lip Reading Easier
4. Learning how to cope with burn injuries
5. Chicago Mayor Honors Astellas Excellence in Learning, Development
6. No Link Found Between Birth Anesthesia and Learning Issues
7. Veracord Delivers FDA Expertise with SyberWorks Latest Learning Management Solution
8. Learning Takes Place When You Get Things Right
9. URAC Launches New eLearning Courses for Health Care Management Accreditation
10. Career Step Partners with Computer Learning Center to Help Students Gain Careers in Growing Healthcare Industry
11. Nation Takes a Big Step Toward Learning Which Medical Treatments Work Best, a Major Advance in Fixing Our Broken Health-Care System
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/13/2014)... Recently, MillionaireCasket.com, a well-known casket manufacturer from China, has announced ... company’s chief executive officer has announced a new promotion for ... at discounted prices, from 15 to 26 percent off. , ... huge demand in the current market. We are excited to ... lot of high quality products for sale. Many of our ...
(Date:7/13/2014)... Micro irrigation systems are mainly utilized for agriculture in ... to maintain soil quality. The application of micro irrigation ... revenue generator for manufacturers in future. The trend of ... led to the adoption of micro irrigation techniques for ... demand for micro irrigation systems, as they reduce the ...
(Date:7/13/2014)... July 13, 2014 Fuel additives are ... gasoline, diesel, jet fuel, kerosene, and so on, in ... responsible for reducing the corrosion effects caused by fuels ... added to any fuel, provide economies of scale in ... escalate the overall cost of the fuel products. , ...
(Date:7/13/2014)... (PRWEB) July 13, 2014 A Massachusetts ... to the cancer risks associated with power morcellators ( ... their story to federal regulators, as they presented poignant ... Food & Drug Administration (FDA) advisory panel meeting convened ... According to the Rochester Democrat and Chronicle, Dr. Hooman ...
(Date:7/13/2014)... Athletes with a certain genetic make-up are ... to research presented today at the American Orthopaedic Society ... research marks the first of its kind investigating a ... events that occur after a head injury. , ... the (GT)n genotype were four times more likely to ...
Breaking Medicine News(10 mins):Health News:Cheap Oak Caskets Recently Unveiled By China Casket Manufacturer MillionaireCasket.com 2Health News:Agricultural Micro Irrigation System Market is Expected to Grow at a CAGR of 18.1%, from 2013 to 2018 - New Report by MicroMarket Monitor 2Health News:Agricultural Micro Irrigation System Market is Expected to Grow at a CAGR of 18.1%, from 2013 to 2018 - New Report by MicroMarket Monitor 3Health News:North America Fuel Additives Market is Expected to Reach $8,100 Million by 2017 - New Report by MicroMarket Monitor 2Health News:North America Fuel Additives Market is Expected to Reach $8,100 Million by 2017 - New Report by MicroMarket Monitor 3Health News:North America Fuel Additives Market is Expected to Reach $8,100 Million by 2017 - New Report by MicroMarket Monitor 4Health News:Couple Who Brought Attention to Morcellator Cancer Risks Testify on Second Day of FDA Advisory Panel Meeting, Bernstein Liebhard LLP Reports 2Health News:Couple Who Brought Attention to Morcellator Cancer Risks Testify on Second Day of FDA Advisory Panel Meeting, Bernstein Liebhard LLP Reports 3Health News:Couple Who Brought Attention to Morcellator Cancer Risks Testify on Second Day of FDA Advisory Panel Meeting, Bernstein Liebhard LLP Reports 4Health News:Genetic Factors May Be Responsible for Slowing Concussion Recovery in Athletes 2
... 27 One of the nation,s,largest pharmacy benefits ... and 28 other states resolving claims of,deceptive business ... agreement was reached with,Express Scripts Inc., a pharmacy ... nationwide., As part of the settlement, Express ...
... In a first-of-its-kind study in osteoporosis, one in four women ... or more bone fractures since the age of 45 years. ... a fracture, only 26% reported use of bone-saving drugs, with ... America and Australia. Identifying important regional differences is just ...
... 27 The,Biomedical Excellence for Safer Transfusion (BEST) ... validity and medical,implications of several recent papers purporting ... Blood Cells leads to greater risk. The organization,will ... Health and Human,Services (HHS) meeting of the Advisory ...
... distribution of mineral in arteries rather than amount ... of a person,s heart attack risk can be achieved ... only the amount, but also the distribution, of calcified ... , "Now we know that the location of the ...
... Astrium GmbH have today signed a contract worth 263 ... Explorer mission of ESAs Living Planet Programme. As prime ... development and integration. , The contract was signed today ... Exhibition (ILA) by Volker Liebig, ESAs Director of Earth ...
... Expert To Discuss The Benefits of Improved Patient ... MedAssurant, Inc., a leading,medical informatics solutions provider, announced ... will be presenting at AHIP,s,Institute 2008 to be ... West in,San Francisco., The symposium, "Patient Healthcare ...
Cached Medicine News:Health News:Pennsylvania Attorney General Corbett Announces Multi-State Settlement With Express Scripts Inc. 2Health News:Pennsylvania Attorney General Corbett Announces Multi-State Settlement With Express Scripts Inc. 3Health News:Global study reveals differences in standard of care for osteoporosis across the world 2Health News:International Research Organization Responds to Recent Studies Purporting to Show That Transfusion of Older Red Blood Cells Leads to Greater Risk 2Health News:International Research Organization Responds to Recent Studies Purporting to Show That Transfusion of Older Red Blood Cells Leads to Greater Risk 3Health News:New Calcium Measure Better Predictor of Heart Risks 2Health News:EarthCARE satellite contract signed 2Health News:MedAssurant's Dr. Keith Dunleavy to Present at AHIP's Institute 2008 2
(Date:7/10/2014)... , July 10, 2014   Ventana Medical Systems, ... announced it has entered into an agreement with Merck ... as EMD Serono in the United States ... collaborate with Merck KGaA,s biopharmaceutical division on the development ... undisclosed target using Ventana,s proprietary diagnostic assays. In alignment ...
(Date:7/10/2014)... , July 10, 2014 CVS Caremark Corporation (NYSE: ... directors has approved a quarterly dividend of $0.275 (27.5 cents) ... payable on August 1, 2014, to holders of record on ... CVS Caremark is dedicated to helping people on their ... in the United States . Through the ...
(Date:1/15/2014)... ChinaMarketResearchReports.com adds "China Orthopedic Instrument Industry Report, 2013-2015" research ... http://photos.prnewswire.com/prnh/20140115/MN46792 ) Benefiting from aging of ... orthopedic instrument industry has seen rapid development ... 3.28 billion yuan in 2006 to 9.85 billion yuan ...
Breaking Medicine Technology:Ventana Medical Systems, Inc. and Merck KGaA, Darmstadt, Germany to develop companion diagnostic test for cancer treatment 2Ventana Medical Systems, Inc. and Merck KGaA, Darmstadt, Germany to develop companion diagnostic test for cancer treatment 3Orthopedic Instrument Industry in China Markets Forecast to 2015 2Orthopedic Instrument Industry in China Markets Forecast to 2015 3
The Pan Retinal® 2.2 uniquely combines magnification nearly that of the 20D lens with a field of view approaching that of the 30D lens. Excellent for virtually every examination procedure, includ...
The 14D provides high magnification along with an optimized working distance from the cornea. With its 4.30x magnification, it is also well suited for optic disc and macular observation....
This excellent mid-power lens provides medium field and magnification, with an ideal diameter for grip andmanipulation in the orbital area....
The Professional ophthalmoscope has been designed to ensure ultimate control. Lenses, graticules and filters can all be introduced at the touch of a fingertip without the need to pull away from the p...
Medicine Products: