Navigation Links
Shape encoding may start in the retina
Date:9/11/2007

Los Angeles New evidence from the University of Southern California suggests that there may be dedicated cells in the retina that help compile small bits of information in order to recognize objects. The research was conducted by Ernest Greene, professor of psychology in the area of brain and cognitive sciences at USC. The study is published in the Public Library of Science journal, PLoS ONE.

It is well established that the images the observer sees are divided in half as they are sent to the two hemispheres of the brain. When a person looks at the center of an object, the image from the right half of the object will be sent to one hemisphere of the brain and the image of the left half is sent to the other. This is true whether a person uses one eye or two to look at the object. Given that the primary visual areas in each hemisphere are seeing only half of the object, it has been assumed that communication between the hemispheres was needed to combine the information, said Greene.

By using a high-speed LED array to display the images, Greene found evidence that the two sides of the retina interact to enhance the effectiveness of shape cues, which he describes as linkage. The cells in the retina appear to be coordinating their responses in a way that benefits shape recognition. Further, they do so with unexpected temporal precision.

The study was done by positioning dots around the outer boundaries of objects, forming stimuli similar to silhouettes. The dots were shown, in successive pairs, one pair after the other, and the observers were then asked to identify each shape. Recognition was best if time intervals that separated pairs and pair members were in the submillisecond range. This was true whether both members of the pair were displayed on the same side of the object or on opposite sides. This finding suggests that the responses from the two sides of the retina are being linked in some manner, and the process of j
'/>"/>

Contact: Ernest Greene
egreene@usc.edu
818-353-4051
Public Library of Science
Source:Eurekalert

Page: 1 2

Related biology news :

1. Elusive HIV shape change revealed; Key clue to how virus infects cells
2. Discovery of key proteins shape could lead to improved bacterial pneumonia vaccine
3. The Shapes Of Life: NIGMS Project Yields More Than 1,000 Protein Structures
4. Fibril Shape Is The Basis Of Prion Strains And Cross-species Prion Infection
5. Scientists reveal the shape of a protein that helps retroviruses break into cells
6. Evolution of taste receptor may have shaped human sensitivity to toxic compounds
7. Divergent life history shapes gene expression in brains of salmon
8. Beyond genes: Lipid helps cell wall protein fold into proper shape
9. Mechanism regulating tooth shape formulation found
10. MicroRNAs have shaped the evolution of the majority of mammalian genes
11. The shape of things to come: Morphology database going global
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:12/10/2014)... N.C. , Dec. 9, 2014  Valencell, a ... it is seeing a staggering demand from its licensees ... the Company revealed, is not solely coming from fitness ... as well. "A wearable is only as ... result, accuracy is the ultimate driver in long-term mass ...
(Date:12/5/2014)... VIEW, Calif. , Dec. 4, 2014 /PRNewswire/ ... safety has boosted investments in new testing and ... has also given rise to a range of ... by the requirements of Generation Y, which is ... technologies. As a result, product development strategies of ...
(Date:11/21/2014)... According to a new market ... RFID, Access Control, Intrusion Detection, Parking Management, Under Vehicle ... Service Geography - Global Forecasts to 2020", published by ... be around $25 Billion in 2014 and is expected ... CAGR of 8.69%. Browse 116 market data ...
Breaking Biology News(10 mins):Wearable Technology Products Demand Highly Accurate Biometric Technology 2Emerging Technologies Enable Smarter Monitoring of Assets, Push Industrial Testing, Inspection and Monitoring Market 2Emerging Technologies Enable Smarter Monitoring of Assets, Push Industrial Testing, Inspection and Monitoring Market 3Emerging Technologies Enable Smarter Monitoring of Assets, Push Industrial Testing, Inspection and Monitoring Market 4Industrial Security Systems Market Worth $38 Billion by 2020 2Industrial Security Systems Market Worth $38 Billion by 2020 3
... to Josef Ackermann, the head of Deutsche Bank. At almost ... in Rome. The hand of the manager in charge of ... or security staff have had to conduct painstaking inspections of ... approach. At the end of 2011, though, the scanner T-Cognition ...
... release is available in German . ... from Siegen and Professor Jacek Błażewicz from Poznan have ... (DFG, German Research Foundation) and the Foundation for Polish ... scientific collaboration. "The two researchers perform outstanding research, are ...
... groundbreaking new gene sequencing technology, researchers have demonstrated that ... Acute Myeloid Leukemia, AML, one of the most common ... Pacific Biosciences, allows for the rapid and comprehensive detection ... findings, published online April 15 in Nature , ...
Cached Biology News:On the safe side: Contact-free analysis of chemical substances 2Copernicus Award 2012 for German-Polish collaboration in business information systems 2Copernicus Award 2012 for German-Polish collaboration in business information systems 3Scientists identify FLT3 gene as a valid therapeutic target in acute myeloid leukemia 2
(Date:12/19/2014)... , Dec. 18, 2014 Relmada Therapeutics, Inc. ... the treatment of chronic pain, announced the results of ... "This was a transformational year in Relmada,s history ... for our company," said Sergio Traversa , chief ... have executed on key financial, human resource and clinical ...
(Date:12/17/2014)... 16, 2014 “Never say, ‘I ... Universität Marburg’s Department of Physics, advises young women ... newly released SPIE Women in Optics 18-month ... shy to ask questions.” , In the annual ... mathematics) occupations ranging from university professor and laboratory ...
(Date:12/17/2014)... CA (PRWEB) December 17, 2014 Once ... to provide a larger packaged waste water treatment plant ... King Abdullah Economic City (KAEC). Two years ago Bioshaft ... Jeddah Gate Development, serving two residential towers with an ... is over a quarter million gallons per day and ...
(Date:12/17/2014)... 2014 Gene synthesis and bioengineering ... entered into a technology access and services agreement ... DNA2.0’s proprietary protein engineering technology, known as “ProteinGPS®” ... are extremely excited that the global leader ADM ... proprietary bioengineering technology has now been validated through ...
Breaking Biology Technology:Relmada Therapeutics Announces Results of Annual Shareholders Meeting 2Network, Multitask, Persevere: SPIE Women in Optics Planner Subjects Share from Experience 2Network, Multitask, Persevere: SPIE Women in Optics Planner Subjects Share from Experience 3ADM and DNA2.0 Enter Into Protein Engineering Technology Access and Service Agreement 2
... computing -- considered the powerhouse of computational tasks -- ... according to a University of Pittsburgh researcher and his ... and nanotechnology, Gurudev Dutt, assistant professor in Pitt,s Department ... School of Arts and Sciences, and his colleagues report ...
... Dec. 19, 2011 Known for decades as a manufacturing ... as an innovative leader in the jobs market. A recent ... nation for technology jobs with very optimistic outlooks for other ... and the other top contenders are home to major research ...
... and TORONTO, Dec. 19, 2011 Generex Biotechnology ... scheduled to air a segment on the immunotherapeutic ... subsidiary, Antigen Express, Inc.  The segment is scheduled ... PST) today, Monday, December 19, 2011 (see promo ...
Cached Biology Technology:Quantum computing has applications in magnetic imaging, say Pitt researchers 2Ohio's Bioscience Industry Effort Paying Off With Increase in Graduates and Accolades for the State 2Ohio's Bioscience Industry Effort Paying Off With Increase in Graduates and Accolades for the State 3Ohio's Bioscience Industry Effort Paying Off With Increase in Graduates and Accolades for the State 4Breast Cancer Vaccine Being Developed by Generex Subsidiary Antigen Express to be Featured on Bloomberg Television Today 2Breast Cancer Vaccine Being Developed by Generex Subsidiary Antigen Express to be Featured on Bloomberg Television Today 3Breast Cancer Vaccine Being Developed by Generex Subsidiary Antigen Express to be Featured on Bloomberg Television Today 4