Navigation Links
Stanford researchers surprised to find how neural circuits identify information needed for decisions
Date:11/6/2013

While eating lunch you notice an insect buzzing around your plate. Its color and motion could both influence how you respond. If the insect was yellow and black you might decide it was a bee and move away. Conversely, you might simply be annoyed at the buzzing motion and shoo the insect away. You perceive both color and motion, and decide based on the circumstances. Our brains make such contextual decisions in a heartbeat. The mystery is how.

In an article published November 7th in the journal Nature, a team of Stanford neuroscientists and engineers delve into this decision-making process and report some findings that confound the conventional wisdom.

Until now, neuroscientists have believed that decisions of this sort involved two steps: one group of neurons that performed a gating function to ascertain whether motion or color was most relevant to the situation, and a second group of neurons that considered only the sensory input relevant to making a decision under the circumstances.

But in a study that combined brain recordings from trained monkeys, and a sophisticated computer model based on that biological data, Stanford neuroscientist William Newsome and three coauthors discovered that the entire decision-making process may occur in a localized region of the prefrontal cortex.

In this region of the brain, located in the frontal lobes just behind the forehead, they found that color and motion signals converged in a specific circuit of neurons. Based on their experimental evidence and computer simulations, the scientists hypothesized that these neurons act together to make two snap judgments: is color or motion the most relevant sensory input in the current context, and what action to take as a result.

"We were quite surprised," said Newsome, the Harman Family Provostial Professor at the Stanford School of Medicine and lead author.

He and first author Valerio Mante, a former Stanford neurobio
'/>"/>

Contact: Tom Abate
tabate@stanford.edu
650-736-2245
Stanford School of Engineering
Source:Eurekalert  

Page: 1 2 3 4 5

Related biology news :

1. Stanford scientists develop gene therapy approach to grow blood vessels in ischemic limbs
2. Keck award enables Carnegie Mellon and Stanford to dramatically expand crowdsourced RNA design
3. Climate change may create price volatility in the corn market, say Stanford and Purdue researchers
4. Stanford and MIT scientists win Perl-UNC Neuroscience prize
5. Americas clean energy policies need a reality check, say Stanford researchers
6. Support for climate change action drops, Stanford poll finds
7. Stanford scientists document fragile land-sea ecological chain
8. Stanford researchers help predict the oceans of the future with a mini-lab
9. Stanford marine biologist Barbara Block wins Rolex Award for Enterprise
10. Stanford scientists find molecule to starve lung cancer and improve ventilator recovery
11. Stanford researchers calculate global health impacts of the Fukushima nuclear disaster
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Stanford researchers surprised to find how neural circuits identify information needed for decisions
(Date:8/28/2014)... of new roads will be built worldwide by 2050. ... wildernesses, where they bring an influx of destructive loggers, ... study has created a ,global roadmap, for prioritising road ... competing demands of development and environmental protection. , The ... that natural importance of ecosystems and a ,road-benefits, layer ...
(Date:8/28/2014)... the world to Global Warming, has called for atmospheric ... He says that Carbon Capture, combined with limits on ... global warming getting out of control over the next ... the call during his presentation to the International Carbon ... to discuss Carbon Capture and Storage. , He ...
(Date:8/28/2014)... assigned a number of 435-million-year-old fossils to a ... in shallow marine habitats and were far less ... , Before they sank to the bottom ... some 435 million years ago, these arthropods preyed ... although they were not exactly inconspicuous, possessing a ...
Breaking Biology News(10 mins):Study shows where on the planet new roads should and should not go 2Study shows where on the planet new roads should and should not go 3Global warming pioneer calls for CO2 to be taken from atmosphere and stored underground 2Paleontology: Oldest representative of a weird arthropod group 2
... is poised to become the first example of a ... a major threat to endangered wildlife that authorities are ... found only in Iran, is considered Critically Endangered and ... individuals. The amphibian is being proposed for an Appendix ...
... Boston, Mass. -- A large study from Children,s Hospital Boston ... that samples the entire genome, known as chromosomal microarray analysis, ... related to autism spectrum disorders (ASDs) than standard tests. Publishing ... March 15), the authors urge that CMA become part of ...
... March 10, 2010 Using a novel light activation technique, ... with only a modest ability to fight specific proteins into ... "warhead" molecule capable of inactivating nearby proteins when triggered by ... by providing researchers with a new set of research tools ...
Cached Biology News:Potential CITES trade ban for rare salamander underscores wildlife e-commerce 2A better genetic test for autism 2A better genetic test for autism 3Light activated 'warhead' turns modest molecules into super protein killers 2Light activated 'warhead' turns modest molecules into super protein killers 3
(Date:8/28/2014)... 2014 SPIE Fellow Glenn Boreman, Professor ... Science and Director of the Center for Optoelectronics and ... Charlotte, and co-founder and Chairman of the Board of ... 2015 Vice President of SPIE, the international society for ... announced recent election results at the Annual General Meeting ...
(Date:8/28/2014)... spintronics, an electronic which is not only based ... their spin and the spin-related magnetism. Spin-charge converters ... and vice versa. Recently, the research group of ... at Johannes Gutenberg University Mainz in collaboration with ... for the first time realised a new, efficient ...
(Date:8/28/2014)... Sterlitech is proud to announce that it is ... of products . These additional products increase the ... filters with surface charges. , “We have ... membrane process testing equipment, and correspondingly, a wider demand ... Sterlitech President Mark Spatz. “The addition of Synder ...
(Date:8/28/2014)... Earlier this month, a report was created by ... Air Force on the performance of vehicles using an ... of fuel made from mustard seeds, offered great potential ... Eco friendly future. In fact, every branch of the ... of foreign oil over the next few years. They ...
Breaking Biology Technology:Glenn Boreman, UNC Professor and Plasmonics Co-Founder, Elected to SPIE Presidential Chain 2A new, tunable device for spintronics 2A new, tunable device for spintronics 3Sterlitech Corporation Enhances Its Selection of Flat Sheet Membrane Filters 2Can Small Farmers and a New Seed Based Biofuel “Green” the World? Major Universities and Even the U.S. Air Force Seem to Think So 2Can Small Farmers and a New Seed Based Biofuel “Green” the World? Major Universities and Even the U.S. Air Force Seem to Think So 3Can Small Farmers and a New Seed Based Biofuel “Green” the World? Major Universities and Even the U.S. Air Force Seem to Think So 4Can Small Farmers and a New Seed Based Biofuel “Green” the World? Major Universities and Even the U.S. Air Force Seem to Think So 5
... FRANCISCO, Calif., Dec. 8 Rigel,Pharmaceuticals, Inc. (Nasdaq: ... chief executive officer, will participate in a panel,discussion at the ... and Targets for Inflammation and Rheumatology", will take,place on Wednesday, ... Times,Square Hotel in New York City. , ...
... MINNEAPOLIS, Dec. 8 ATS Medical, Inc.,(Nasdaq: ATSI ... today announced it has received FDA clearance for the,marketing of ... tab,material supplier and an improved valve holder accessory device. , ... ) , While the ...
... When it comes to the world of the very, very ... and its capacity to alter the fundamentals of nature, it ... In a report published today (Dec. 7) in the journal ... and Europe reveal a sharp contrast in the perception that ...
Cached Biology Technology:ATS Medical Provides Update on US Commercialization of Its ATS 3f Aortic Bioprosthesis 2ATS Medical Provides Update on US Commercialization of Its ATS 3f Aortic Bioprosthesis 3For nano, religion in US dictates a wary view 2For nano, religion in US dictates a wary view 3
Mouse anti-IkBa/MAD-3 Class: Antibody Product Group: Signalling molecules and phospho-specific Antibody...
Rabbit polyclonal to Oct2, prediluted ( Abpromise for all tested applications). entrezGeneID: 5452 SwissProtID: P09086...
Anti-Mouse Reticular Fibroblast, Purified (Clone ER-TR7) (rat IgG2a)...
Mouse monoclonal [2Q2147] to Aequorin ( Abpromise for all tested applications)....
Biology Products: