HOME >> BIOLOGY >> NEWS
Eye strips images of all but bare essentials before sending visual information to brain, UC Berkeley research shows

The eye as a camera has been a powerful metaphor for poets and scientists alike, implying that the eye provides the brain with detailed snapshots that form the basis for our rich experience of the world.

Recent studies at the University of California, Berkeley, however, show that the metaphor is more poetic than real. What the eye sends to the brain are mere outlines of the visual world, sketchy impressions that make our vivid visual experience all the more amazing.

"Even though we think we see the world so fully, what we are receiving is really just hints, edges in space and time," said Frank S. Werblin, professor of molecular and cell biology in the College of Letters & Science at UC Berkeley. Werblin is part of UC Berkeley's Health Sciences Initiative, a collaboration among researchers throughout the campus to tackle some of today's major health problems.

The brain interprets this sparse information, probably merging it with images from memory, to create the world we know, he said.

In a paper in the March 29 issue of Nature, doctoral student Botond Roska, M.D., and Werblin provide evidence for between 10 and 12 output channels from the eye to the brain, each carrying a different, stripped-down representation of the visual world.

"These 12 pictures of the world constitute all the information we will ever have about what's out there, and from these 12 pictures, which are so sparse, we reconstruct the richness of the visual world," Werblin said. "I'm curious how nature selected these 12 simple movies and how it can be that they are sufficient to provide us with all the information we seem to need."

While scientists have known that the eye forwards several parallel representations of the world to the brain, what these are and how they are produced has been a mystery.

"What we have done," Roska said, "is show that the retina creates a stack of image representations, how these image representations are forme
'"/>

Contact: Robert Sanders
rls@pa.urel.berkeley.edu
510-643-6998
University of California - Berkeley
27-Mar-2001


Page: 1 2 3 4

Related biology news :

1. Anthrax enzyme images reveal secrets of antibiotic resistance, suggest new drug design
2. New technique images gene expression in mice
3. Brain links non-food images with eating -- But only when hungry, study suggests
4. First-ever images of developing dengue virus obtained at Purdue
5. High-speed images show how cells mobilize for immune response
6. Researchers record first pheromone images in brains of mice
7. UIC scientists provide first images of HIV in living cells
8. Brains method of creating mental images differs with the source of cues received
9. Dispatches and images available: Human impact on giant panda habitat
10. Three-D images shed light on first steps of RNA synthesis
11. New x-ray technique images cartilage, may lead to earlier diagnosis of osteoarthritis

Post Your Comments:
(Date:11/15/2014)... we may still be a few years away from the ... gain instant access to all that ailed his patients, mobile ... for monitoring and measuring our health are cropping up in ... tad Orwellian to some, but a new survey suggests that ... into their healthcare regime. These are some of ...
(Date:11/10/2014)... on U.S. store shelves in early 2010, and people ... small packets can be tossed into a washing machine ... powder. The convenience, though, has come with risks for ... Nationwide Children,s Hospital found that from 2012 through 2013, ... younger than 6 years of age swallowing, inhaling, or ...
(Date:11/7/2014)... November 6, 2014 Leading Biometric companies ... mobile security revolutionizing online transactions.  Companies in focus today are: ... (NYSE: BABA ), Google Inc. (NASDAQ: ... Inc. (NASDAQ: EBAY ) and MasterCard Inc. (NYSE: ... and NXTDW), a biometric authentication company focused on the growing ...
Breaking Biology News(10 mins):Americans May Be Ready for a Brave New World of Healthcare 2Americans May Be Ready for a Brave New World of Healthcare 3Americans May Be Ready for a Brave New World of Healthcare 4Study finds laundry detergent pods, serious poisoning risk for children 2Universal Authentication Methods Provide More Secure Operations for Biometrics Devices - Company Joins FIDO Alliance for Consumer Protection 2Universal Authentication Methods Provide More Secure Operations for Biometrics Devices - Company Joins FIDO Alliance for Consumer Protection 3Universal Authentication Methods Provide More Secure Operations for Biometrics Devices - Company Joins FIDO Alliance for Consumer Protection 4Universal Authentication Methods Provide More Secure Operations for Biometrics Devices - Company Joins FIDO Alliance for Consumer Protection 5Universal Authentication Methods Provide More Secure Operations for Biometrics Devices - Company Joins FIDO Alliance for Consumer Protection 6
(Date:11/26/2014)... SoundConnect , an award winning unified communications ... Darren Suders has joined the team as Director of ... partner program through innovative offerings, consistent partner ... brings more than 10-years of channel telecommunication experience to ... from policy development, to partner education and to expansion. ...
(Date:11/26/2014)... Texas (PRWEB) November 26, 2014 ... Industry is an in-depth research report on the ... the report introduces Palmitic Acid, basic information, including ... policy analysis, and news analysis, etc. , ... analyzes Palmitic Acid market in China ...
(Date:11/26/2014)... , Nov. 25, 2014 Bio-Techne Corporation (NASDAQ: ... appointed Robert Gavin to serve in a ... Protein Platforms Division.  Mr. Gavin will be responsible for ... which includes the ProteinSimple business acquired in July 2014 ... San Jose, California -based ProteinSimple develops and ...
(Date:11/26/2014)... -- Roka Bioscience, Inc. (NASDAQ: ROKA ), a molecular ... detection of foodborne pathogens, today announced that Paul G. ... Annual Healthcare Conference on December 2, 2014 at 4:30pm ... Palace in New York, NY . ... its operations, strategies and prospects may be discussed. To listen ...
Breaking Biology Technology:SoundConnect Appoints Director of Channel Development & Sales 2Palmitic Acid Industry Global 2014 Analysis & 2020 Forecasts on Market data, Statics, Development Now at ReportsnReports.com 2Palmitic Acid Industry Global 2014 Analysis & 2020 Forecasts on Market data, Statics, Development Now at ReportsnReports.com 3Bio?Techne Announces Appointment Of Robert Gavin As Leader Of New Protein Platforms Division 2Bio?Techne Announces Appointment Of Robert Gavin As Leader Of New Protein Platforms Division 3Roka Bioscience to Present at the Piper Jaffray Healthcare Conference 2
Cached News: