Navigation Links
New insights into how the brain reconstructs the third dimension
Date:12/7/2011

This press release is available in German.

As dizzying as it may sound, the impression that we are living in a 3D world is actually a continuous fabrication of our brains. When we look at things, the world gets projected onto the retina and information about the third dimension is lost a bit like when a 3D object casts a shadow onto a flat, 2D wall. Somehow the brain is able to reconstruct the third dimension from the image, allowing us to experience a convincing 3D world. A team of scientists from Giessen University, Yale and the Max Planck Institute for Biological Cybernetics in Tbingen has recently discovered how cells in visual cortex might help solve this mystery. They created special 2D patterns designed to stimulate specific nerve cells when we look at them. They find that the result is a vivid illusion of 3D shape, which suggests these cells play an important role in reconstructing 3D shape.

"We created the images by taking random noise and smearing it out across the image in specific patterns. It's a bit like finger painting, except it's done by computer", explains Roland Fleming, Professor of Psychology at the University of Giessen. "The way the texture gets smeared out is not the way texture behaves in the real 3D world. But it allows us to selectively stimulate so-called 'complex cells' in visual cortex, which measure the local 2D orientation of patterns in the retinal image".

These cells whose discovery led to a Nobel Prize for David Hubel and Torsten Wiesel are often described as 'edge detectors' because they respond to boundaries or edges in the image. What was not known was that these cells could play a key role in estimating 3D shape.

"We asked people to adjust small probes to report what they saw. The settings allow us to reconstruct exactly which 3D shapes they perceived," says Heinrich Blthoff, director of
'/>"/>

Contact: Heinrich Blthoff
heinrich.buelthoff@tuebingen.mpg.de
49-707-160-1601
Max-Planck-Gesellschaft
Source:Eurekalert  

Page: 1 2

Related biology news :

1. New papers offer insights into process of malarial drug resistance
2. Mixing genomics and geography yields insights into life and environment
3. New insights into a leading poultry disease and its risks to human health
4. New paper offers key insights into how new species emerge
5. Mixed population provides insights into human genetic makeup
6. Addiction: Insights from Parkinsons disease
7. Lohafex provides new insights on plankton ecology
8. New insights into progressive hearing loss
9. First neuroimaging study examining motor execution in children with autism reveals new insights
10. Limping rat provides sciatica insights
11. Researchers gain genome-wide insights into patterns of the worlds human population structures
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
New insights into how the brain reconstructs the third dimension
(Date:8/27/2014)... described by the Volunteer Wildfire Services of South Africa ... government warned residents in certain parts of the province ... A high veld fire danger rating is expected ... the Great Kei and Mnquma area. Strong winds ... The thunderstorms bring lightning strikes and subsequent fire and ...
(Date:8/27/2014)... . , Charcot-Marie-Tooth ... affecting the peripheral nervous system. Researchers from the Department ... Medicine and University Medical Centre Gttingen have discovered that ... with the disease. These cells enwrap the nerve fibres ... the rapid transfer of electrical impulses. If Schwann cells ...
(Date:8/27/2014)... New evidence puts into doubt the long-standing belief that ... the brain plays a central role in depression. ... report that mice lacking the ability to make serotonin ... by conventional wisdom) did not show depression-like symptoms. ... Dingell VA Medical Center and Wayne State University School ...
Breaking Biology News(10 mins):Potential therapy for incurable Charcot-Marie-Tooth disease 2New study throws into question long-held belief about depression 2
... University of New Mexico (UNM), Brown University, and House Ear ... simplex virus type 1 (HSV1) infections growing inside cells. HSV1, ... latent form inside nerve cells. Re-activation and growth of HSV1 ... are published in the March 31 issue of PLoS ...
... United States in late 2004, many producers feared devastating yield ... world. In response to this threat, researchers have been evaluating ... a recent report in Crop Science identifies some ... which of the soybean germplasm accessions were resistant in the ...
... , HELSINKICould "interventions" bring children closer to nature? Researchers ... HortTechnology compares urban and rural children,s relationships ... children. In Finland, a country famous for its ... Department of Agricultural Sciences at the University of Helsinki ...
Cached Biology News:Researchers link herpes to Alzheimer's disease 2Soybean germplasm evaluations give US a head start against soybean rust pathogen 2Soybean germplasm evaluations give US a head start against soybean rust pathogen 3Researchers say children need horticultural interventions 2
(Date:8/27/2014)... 2014 Varian Medical Systems today broke ... Salt Lake City manufacturing facility and allow for the ... ultimately create 1,000 new full time jobs in the ... is home to hardworking people with immense engineering and ... Varian’s success in the manufacturing of our state-of-the-art X-ray ...
(Date:8/27/2014)... 27, 2014 Reportlinker.com announces that ... in its catalogue: Global Biodegradable ... http://www.reportlinker.com/p02316661/Global-Biodegradable-Packaging-Materials-Market-2014-2018.html About Biodegradable ... are readily decomposed by the action of ... packaging in terms of raw materials, production ...
(Date:8/27/2014)... , Aug. 27, 2014 Reportlinker.com ... available in its catalogue: Global Chelating ... About Chelating Agent A chelating ... covalent bonds with metal ions, thereby forming a ... some metal-ions have on chemical processes, formulations, and ...
(Date:8/27/2014)... 27, 2014 “We are honored to ... said Ven Thangaraj, CEO of Radiant Sage. “We are ... taking the imaging corelab market to a different level. ... research organizations to efficiently and effectively manage the massive ... to be analyzed and read by trained physicians. Being ...
Breaking Biology Technology:Varian Medical Systems Groundbreaking on Facility Expansion Triggers Influx of New Jobs to Salt Lake 2Varian Medical Systems Groundbreaking on Facility Expansion Triggers Influx of New Jobs to Salt Lake 3Global Biodegradable Packaging Materials Market 2014-2018 2Global Biodegradable Packaging Materials Market 2014-2018 3Global Biodegradable Packaging Materials Market 2014-2018 4Global Biodegradable Packaging Materials Market 2014-2018 5Global Biodegradable Packaging Materials Market 2014-2018 6Global Biodegradable Packaging Materials Market 2014-2018 7Global Chelating Agents Market 2014-2018 2Global Chelating Agents Market 2014-2018 3Global Chelating Agents Market 2014-2018 4Radiant Sage Named to CIOReview List of 100 Most Promising Technology Companies 2
... ... woman found dead four days after receiving the Gardasil vaccine has filed an ... been asked to bar lawsuits against manufacturers of defectively designed vaccines. The ... have a lessened incentive to produce a safe vaccine and public trust in ...
... ... ... 16, 2010 -- The American Medical Writers Association named medical writer, Rita Buckley, Writer/Owner ... for Excellence in Medical Communication. She received the awards for The Lehman Series Expert ...
... IRVINE, California and KARLSRUHE, Germany , June 16, 2010 ... Germany and the US. "Growth requires space" had already been the motto of,the ... , ... joimax(R) Inc. is moving from Campbell to Irvine, California , one,of ...
Cached Biology Technology:Supreme Court Amicus Brief Filed Opposing Lawsuit Protection for Manufacturers of Defectively Designed Vaccines 2Medical Writer Rita Buckley Wins Awards for Excellence in Medical Communication 2Medical Writer Rita Buckley Wins Awards for Excellence in Medical Communication 3joimax(R) Moves Into Larger Premises 2
RABBIT ANTI HUMAN CHYMOTRYPSIN...
... Captivate magnetic separator for ... used in conjunction with the ... C-21476) or other magnetic particles ... mL microcentrifuge tubes. Cell Biology ...
This issue concentrated on the purification of proteins for specific purposes (i.e. large-scale purification, purification for therapeutic use, etc.)...
... • This book describes the basic ... preparing samples for protein transfer and ... bioluminescence-enhanced detection systems are also included. ... and characterization of glycoprotein carbohydrate chains ...
Biology Products: