Navigation Links
Carnegie Mellon neuroscientist proposes new theory of brain flexibility
Date:11/15/2007

PITTSBURGH Carnegie Mellon University neuroscientist Marcel Just and Stanford postdoctoral fellow Sashank Varma have put forward a new computational theory of brain function that provides answers to one of the central questions of modern science: How does the human brain organize itself to give rise to complex cognitive tasks such as reading, problem solving and spatial reasoning? Just and Varmas theory, called 4CAPS, is described in the fall issue of the journal Cognitive, Affective, and Behavioral Neuroscience.

More than a decade of research involving functional Magnetic Resonance Imaging brain scans in hundreds of laboratories has yielded a tremendous amount of information about what parts of the brain are activated when a person performs various tasks. Some researchers have been tempted to conclude that a simple one-to-one relationship exists between high-level mental tasks and brain areas. For example, some believe that a specific brain area is responsible for a specific cognitive task, such as identifying a face.

Just and Varma, however, propose that the evidence reveals a more complex picture in which thinking is a network function a collaboration of several brain areas that is constantly adapting itself, based on the task at hand and the brains own resources and biological limitations. The collaborating parts of the brain, according to Just, are like members of a sports team whose players substitute in and out of the action. 4CAPS (an acronym for Capacity Constrained Concurrent Cortical Activation-based Production System), proposes a decentralized process by which members of the cortical team volunteer themselves when their strengths are called for, but also permits less efficient but capable members to step forward when the primary player is injured or disabled, as might occur as a result of a stroke. Just and Varma have constructed a number of computational models to demonstrate this process, such as a model that understands Engli
'/>"/>

Contact: Jonathan Potts
jpotts@andrew.cmu.edu
412-268-6094
Carnegie Mellon University
Source:Eurekalert

Page: 1 2 3

Related medicine news :

1. Carnegie Mellon Establishes Ray and Stephanie Lane Center for Computational Biology
2. The Bank of New York Mellon Recognized as Change Agent Shaping the Direction of Healthcare Transaction Processing
3. Brandeis neuroscientist wins NIH directors Pioneer Award
4. Jefferson neuroscientists show anti-inflammation molecule helps fight MS-like disease
5. Leading neuroscientist seeks beauty, love and happiness
6. FDA Proposes New Rules for Sunscreens
7. Study Puts 1 Alzheimers Theory in Doubt
8. Discovery supports theory of Alzheimers disease as form of diabetes
9. Draining away brains toxic protein to stop Alzheimers
10. Vision restoration therapy shown to improve brain activity in brain injured patients
11. Clinical depression linked to abnormal emotional brain circuits
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/12/2014)... (PRWEB) July 12, 2014 Wright & Schulte ... clients in Just For Men Lawsuits (case #59776/2014), announces ... consumers of reports that allege the popular hair dye, Just ... burns to their face, neck and other areas. In addition ... For Men chemical burns , the advertisements being run by ...
(Date:7/12/2014)... 12, 2014 Maxim Peptide, a website ... are used solely in scientific experiments, is currently celebrating ... in business, Maxim Peptide, which was created by the ... new and updated website that now features a special ... been updated with fascinating articles about peptide research, including ...
(Date:7/11/2014)... Recently, MagicQuinceaneraDresses.com, the popular online supplier of special occasion ... Quinceanera dresses . The company’s new items are specially ... paying a large amount of money. They are all ... The company’s online shop has become a one stop ... In addition to exquisite Quinceanera dresses, it also offers ...
(Date:7/11/2014)... According to new report "C4ISR Market (2014 ... register a CAGR of 2.28% to reach $93.04 ... tables and 76 figures spread through 185 pages ... , Early buyers will receive 10% customization ... report provides market analysis of the global C4ISR ...
(Date:7/11/2014)... PA (PRWEB) July 11, 2014 Butler Mobility ... of Inclined Platform Lifts . Previously the two ... offering five new beautiful earth tone colors as standard colors ... blend well in the home but will enhance the beauty ... choice for any home color scheme or individual décor. , ...
Breaking Medicine News(10 mins):Health News:Just for Men Lawsuit News: TV Campaign Launched by Wright & Schulte LLC to Inform Consumers of the Alleged Association between the Popular Hair Dye and Chemical Burns 2Health News:Just for Men Lawsuit News: TV Campaign Launched by Wright & Schulte LLC to Inform Consumers of the Alleged Association between the Popular Hair Dye and Chemical Burns 3Health News:Just for Men Lawsuit News: TV Campaign Launched by Wright & Schulte LLC to Inform Consumers of the Alleged Association between the Popular Hair Dye and Chemical Burns 4Health News:Maxim Peptide Celebrates Second Anniversary Online with an Updated Website and Special Deals Section 2Health News:Cheap Quinceanera Dresses Now Available At MagicQuinceaneraDresses.com 2Health News:C4ISR Market Estimated to Reach $93.04 Billion by 2019 - New Report by MarketsandMarkets 2Health News:C4ISR Market Estimated to Reach $93.04 Billion by 2019 - New Report by MarketsandMarkets 3Health News:C4ISR Market Estimated to Reach $93.04 Billion by 2019 - New Report by MarketsandMarkets 4Health News:Butler Mobility Products Announces Five New Standard Colors for Their Inclined Platform Lifts 2
... -- The risk of fractures after weight-loss surgery may be ... Prior research has shown that people who undergo surgery to ... for bone fractures. One study, for example, showed a 1.8-fold ... But further analysis showed the risk was actually closer to ...
... thought to accelerate tumor growth in thyroid cancer patients ... for novel cancer therapies, a Mayo Clinic study has ... Clinic researcher Honey Reddi, Ph.D., at the Endocrine Society ... widespread implications in cancer research and endocrinology . ...
... womb can program the potential for adverse health effects in ... on whether the mother or father transmits them, a new ... The Endocrine Society,s 93rd Annual Meeting in Boston. "This ... the womb to excessive levels of stress hormones, known as ...
... 2011 - Additional radiation treatment improves disease free survival ... early breast cancer who have had breast conserving surgery ... results will be presented Monday, June 6 at the ... "These results are potentially practice-changing," said Dr. ...
... -- Medical students who are physically fit are more likely ... new study. Researchers found that medical students who ... physical activity guidelines often felt strongly that being active themselves ... treating. In analyzing certain markers of physical health -- ...
... News) -- College athletes who suffer a concussion may ... concussion is a head injury that can cause headache, ... hearing, as well as difficulty following instructions. "This ... in student-athletes," study author Robert Gardner, a student ...
Cached Medicine News:Health News:Weight-Loss Surgery Linked to Rise in Fracture Risk 2Health News:Fighting cancer with cancer: Mayo Clinic finds promising use for thyroid cancer gene 2Health News:Fetal programming of disease risk to next generation depends on parental gender 2Health News:Breast cancer surgery patients benefit from adding radiation therapy 2Health News:Fit Doctors More Likely to Prescribe Exercise: Study 2Health News:Concussions Tied to Verbal Memory Loss in Young Athletes 2
(Date:7/11/2014)...  Kindred Hospital Houston Northwest, with Wound Care ... its new outpatient wound healing center.  The wound ... chronic, hard to heal wounds. Chronic wounds include ... lower leg wounds related to blood flow issues, ... injury wounds which are complex and demonstrate delayed ...
(Date:7/11/2014)... 2014  Veran Medical Technologies, a U.S. ... positive, cost-effective final results for the initial ... SPiNPerc endobronchial percutaneous biopsy study results support ... biopsy when a traditional bronchoscopic method is ... positive financial outcomes when more can be ...
(Date:7/10/2014)... July 10, 2014  The U.S. Department of Health ... to University Hospitals (UH) Case Medical Center Seidman Cancer ... model aimed at improving care for patients with complex ... project will test a unique model developed at UH ... disease, significant comorbidities, or demonstrated need for high health ...
Breaking Medicine Technology:Kindred Hospital Houston Northwest, With Wound Care Specialists, Opens Outpatient Wound Healing And Hyperbaric Center 2Veran Medical Publishes Lung Cancer Patient Management Study 2University Hospitals Case Medical Center Awarded $4.7 Million Grant from U.S. Department of Health and Human Services 2University Hospitals Case Medical Center Awarded $4.7 Million Grant from U.S. Department of Health and Human Services 3University Hospitals Case Medical Center Awarded $4.7 Million Grant from U.S. Department of Health and Human Services 4
... 11, 2011 Reportlinker.com announces that ... available in its catalogue: ... New pricing rules set to negatively ... internationally http://www.reportlinker.com/p0360217/Germany-Pharmaceutical-Market-Overview-–-New-pricing-rules-set-to-negatively-impact-drug-sales-both-domestically-and-internationally.html ...
... 11, 2011 Reportlinker.com announces that a new ... The Endoscopy Device Market Outlook ... Introduction This endoscopy device market ... global market, covering endoscopic accessories, instruments, endoscopes, and ...
Cached Medicine Technology:Reportlinker Adds Germany Pharmaceutical Market Overview - New pricing rules set to negatively impact drug sales both domestically and internationally 2Reportlinker Adds The Endoscopy Device Market Outlook to 2015 2
Bayonet Kerrison Rongeur, ceramic ejector, 9.5 length 40 Fwd, 6.5 working length 165 mm....
Hardy Micro Dissector, bayonet. Working distance 4 1/4" (120 mm). Angled up, tip width: 2 mm....
Papavero-caspar specula for trans-sphenoidal hypophysectomy....
Fahlbusch hypophysectomie instrument, spoon, bayonet-shaped, malleable....
Medicine Products: