Navigation Links
1 region, 2 functions: Brain cells' multitasking key to understanding overall brain function
Date:3/6/2013

rchers can decode the information conveyed by the neurons' activity.

"The activity patterns in these parietal neurons carry strong information about the category that each motion pattern gets assigned to during the task," Freedman said.

Over the years, his team's work on categorization has zeroed in on the lateral intraparietal (LIP) area. Studies have shown that this area is vital to directing spatial attention and eye movements. But it had been unclear how an area involved in spatial attention and eye movements could also play a role in non-spatial functions such as visual categorization.

To compare spatial and category functions in the parietal lobe, Freedman and his team added a twist to the monkeys' task. During the category task, the researchers required the subjects to make eye-movements to visual cues at various positions on the computer screen, but the subjects still had to categorize the visual patterns at the same time that they made these eye movements.

Since this parietal brain area is known to be involved in eye movements, the eye movements could have disrupted category information in that part of the brain. Instead, parietal brain cells showed a simultaneous and independent encoding of both eye-movement and category informationmultiplexing of information at the level of single brain cells.

"These signals rode right on top of the eye-movement signals," said the study's first author, Chris Rishel, PhD, a recent graduate from Freedman's laboratory. "We could decode both the eye-movement and the category signals with high accuracy. This tells us that different kinds of information that are usually considered quite unrelated were simultaneously and independently represented by neurons in this particular brain area."

Their results, the study authors note, "support the possibility that LIP plays a key role in transforming visual signals in earlier sensory areas into abstract category signals during cat
'/>"/>

Contact: John Easton
John.Easton@uchospitals.edu
773-795-5225
University of Chicago Medical Center
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. Brain adds cells in puberty to navigate adult world
2. Adding to the list of disease-causing proteins in brain disorders
3. Rain Man-like brains mapped at UCSF
4. CETS offers new method to help simplify the study of brain pathologies
5. Brown unveils novel wireless brain sensor
6. Ability of brain to protect itself from damage revealed
7. Activation of cortical type 2 cannabinoid receptors ameliorates ischemic brain injury
8. Engineering control theory helps create dynamic brain models
9. New study shows how seals sleep with only half their brain at a time
10. Shedding new light on infant brain development
11. Brain prostheses create a sense of touch
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:4/20/2014)... corn crop residue to make ethanol and other biofuels ... than gasoline, according to a study published today in ... findings by a University of Nebraska-Lincoln team of researchers ... to meet federal mandates to ramp up ethanol production ... the stalks, leaves and cobs in cornfields after harvest ...
(Date:4/18/2014)... while feeding a world population predicted to reach ... approach to conservation that considers human-altered landscapes such ... and the natural habitat that supports it might ... where at least three-quarters of the land surface ... is vulnerable to human-caused impacts such as climate ...
(Date:4/18/2014)... soon as they,re planted may be good news for a ... the wild, a plant whose seeds sprouted at the first ... just an insurance policy against late frosts or unexpected dry ... too: Plants whose seeds put off sprouting until conditions ... a team of researchers working at the National Evolutionary Synthesis ...
Breaking Biology News(10 mins):Study casts doubt on climate benefit of biofuels from corn residue 2Study casts doubt on climate benefit of biofuels from corn residue 3Stanford researchers rethink 'natural' habitat for wildlife 2Stanford researchers rethink 'natural' habitat for wildlife 3Stanford researchers rethink 'natural' habitat for wildlife 4Plants with dormant seeds give rise to more species 2
... thrills among fossil collectors than a complete trilobite. These ... went extinct more than 250 million years ago, ... rare instances, an entire population of trilobites is found ... environment and behavior in these mass graves. Brett, ...
... the mechanical strength of cancer cell mucus layers provides ... suggests why some cancer cells are more resistant to ... of engineering at Northeastern University, Boston, Mass. ... protect against infection. Cancer cells, however, produce far more ...
... release is available in Spanish . ... growers find a replacement for methyl bromide are studying an ... ingredients. Researchers with USDA,s Agricultural Research Service (ARS) are ... microbial activity could be used to replace the popular fumigant. ...
Cached Biology News:Fossils record ancient migrations and trilobite orgies 2Breaking the mucus barrier unveils cancer cell secrets 2Alternatives eyed for methyl bromide 2
(Date:1/15/2014)... laureate Herbert Kroemer famously observed, referring to the ... where layers of different materials meet. In today,s ... of metal oxides are becoming increasingly prominent, with ... superconductors, ferroelectrics and multiferroics. Realizing the vast potential ...
(Date:1/15/2014)... Cynvenio, a cancer diagnostics company focused ... analysis of tumor cells in the bloodstream, today announced ... decision support application powered by CollabRx, Inc. , ... test, Therapy Finder will provide breast cancer patients and ...
(Date:1/15/2014)... More than 5 million Americans are ... 3 seniors will die with Alzheimer’s or another dementia, ... have shocked many Americans into looking for ways to ... tragic age-related cognitive disorders. Jonathan Weisman, president of Biohack ...
(Date:1/15/2014)... 2014 Freeslate, Inc ., the ... that Lupin Limited, one of India’s top five pharmaceutical ... PharmD System for high throughput solid form screening. ... on a wide range of quality, affordable generic and ...
Breaking Biology Technology:A deeper look at interfaces 2Cynvenio Offers New Breast Cancer Therapy Finder Application for its ClearID Breast Cancer Genomic Test 2Cynvenio Offers New Breast Cancer Therapy Finder Application for its ClearID Breast Cancer Genomic Test 3Biohack Pure Offers 5 Tips for Increasing Memory in 2014 2Lupin Selects Freeslate’s CM Protégé PharmD System to Accelerate Polymorph Screening for Drug Development 2Lupin Selects Freeslate’s CM Protégé PharmD System to Accelerate Polymorph Screening for Drug Development 3
... Alberta Centre for Advanced,MNT (Microsystems and Nanotechnology) Products ... Yallup as Chief Technology Officer. In this new,role ... within ACAMP to,build a world-class capability in Alberta ... technology devices, turning them into market-ready,commercial or industrial ...
... are not risk takers with their health, yet up to ... screenings,- 42 percent are at elevated risk for cardiovascular events, yet 20 percent, ... ... MORRISTOWN, N.J., Sept. 22 A new survey of men and,women age 40 ...
... F. Finn, Jr.,C.P.A. ("Finn"), Assignee of the assets of ... that all oral drug delivery,intellectual property will be sold ... The three presentations were:, 1. BIOROD -- ... Affecting the Bioadhesion Performance of,Spheromer III, 3. Pharmacokinetics ...
Cached Biology Technology:Chief Technology Officer Joins ACAMP 2Risky Business: New Survey Suggests Many Americans Live Dangerously, Even When They Say They Aren't 'Risk Takers' 2Risky Business: New Survey Suggests Many Americans Live Dangerously, Even When They Say They Aren't 'Risk Takers' 3Risky Business: New Survey Suggests Many Americans Live Dangerously, Even When They Say They Aren't 'Risk Takers' 4Risky Business: New Survey Suggests Many Americans Live Dangerously, Even When They Say They Aren't 'Risk Takers' 5Risky Business: New Survey Suggests Many Americans Live Dangerously, Even When They Say They Aren't 'Risk Takers' 6Risky Business: New Survey Suggests Many Americans Live Dangerously, Even When They Say They Aren't 'Risk Takers' 7Spherics, Inc. Presented Three Key Technologies (BIOROD(TM), BIOGIT(TM), and SPHEROMER(TM)) at the 35th Annual Meeting of Controlled Release Society 2
... cocktail of 3 siRNAs specifically targeted to ... popular product. The siTrio reagent guarantees you ... target gene when used under standard conditions ... of optimal transfection with one of B-Bridges ...
... Corticosterone kit is a competitive enzymeimmunoassay (EIA) ... mouse or rat serum or plasma. Corticosterone ... in rats and mice, and in most ... reptiles. Most mammals produce both corticosterone and ...
... This is a molecular screening, low melting ... molecular sieving. It is recommended for separation ... size such as PCR products. Micro ABgarose ... is not recommended for blotting techniques. At ...
Rabbit polyclonal to P5 ( Abpromise for all tested applications). entrezGeneID: 10954 SwissProtID: Q14554...
Biology Products: