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:
*Name:
*Comment:
*Email:


(Date:3/22/2016)... PUNE, India , March 22, 2016 ... new market research report "Electronic Sensors Market for ... Fingerprint, Proximity, & Others), Application (Communication & ... and Geography - Global Forecast to 2022", ... consumer industry is expected to reach USD ...
(Date:3/18/2016)... LONDON , March 18, 2016 ... Established Suppliers of Biometrics, ICT, Manned & Unmanned Vehicles, Physical ... & security companies in the border security market and ... and Europe has led ... your companies improved success. --> defence & ...
(Date:3/15/2016)... -- Yissum Research Development Company of the Hebrew ... Hebrew University, announced today the formation of Neteera ... human biological indicators. Neteera Technologies has completed its first ... ... emissions from sweat ducts, enables reliable and speedy biometric ...
Breaking Biology News(10 mins):
(Date:5/31/2016)... ... ... Doctors in Italy say mesothelioma patients with the highest levels of a ... Mesothelioma has just posted an article on the new research. Click here to ... Italy tested the blood serum, tumors, and lung fluid of 45 mesothelioma patients ...
(Date:5/27/2016)... ... 2016 , ... Weeks after hosting a carpal tunnel syndrome workshop with Dr. ... and founder of the Fitzmaurice Hand Institute, has announced the addition of MRI diagnostic ... technology and only 1 of about 3 currently available in the United States. Developed ...
(Date:5/27/2016)... YORK , May 27, 2016 ... but investors playing in this space know that volatility is ... morning,s featured companies on ActiveWallSt.com: Synta Pharmaceuticals Corp. (NASDAQ: ... ), Lpath Inc. (NASDAQ: LPTN ), and Heat ... and gain access to the technical alerts for these stocks ...
(Date:5/26/2016)... , May 26, 2016 Despite the ... value in this space. Today,s pre-market research on ActiveWallSt.com directs ... Health Inc. (NASDAQ: RDUS ), Cerus Corp. (NASDAQ: ... ARWR ), and Five Prime Therapeutics Inc. (NASDAQ: ... briefings at: http://www.activewallst.com/ On ...
Breaking Biology Technology:
Cached News: