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:2/24/2015)... -- This report analyzes the worldwide markets for Iris Biometrics ... the US, Canada , Japan ... , Middle East , and ... provided for the period 2013 through 2020. Also, a seven-year ... analytics are derived from primary and secondary research. Company profiles ...
(Date:2/24/2015)... 2015 Research and Markets ( ... "Global 2D Gesture Recognition Market 2015-2019" ... analysts forecast the Global 2D Gesture Recognition market ... the period 2014-2019 The increased demand ... one of the major trends in the market. ...
(Date:2/19/2015)... , Feb .19, 2015 Research and Markets ... addition of the "Military Electro-Optical / Infrared ... Technology, by Platform - Forecast to 2020" ... military electro-optical/infrared systems market is expected to reach ... of 7.71%. This report segments the ...
Breaking Biology News(10 mins):World Iris Biometrics Industry 2World Iris Biometrics Industry 3World Iris Biometrics Industry 4World Iris Biometrics Industry 5World Iris Biometrics Industry 6World Iris Biometrics Industry 7World Iris Biometrics Industry 8World Iris Biometrics Industry 9World Iris Biometrics Industry 10World Iris Biometrics Industry 11Global 2D Gesture Recognition Market 2015-2019 with Cognitec Systems, CogniVue, eyeSight Mobile Technologies & PointGrab Dominating 2Military Electro-Optical / Infrared Systems (Image Intensification, Laser, Infrared) Market - Forecast to 2020: Featuring Profiles of the Market Leaders on this $16 Billion market 2Military Electro-Optical / Infrared Systems (Image Intensification, Laser, Infrared) Market - Forecast to 2020: Featuring Profiles of the Market Leaders on this $16 Billion market 3
(Date:3/3/2015)... March 3, 2015 Adaptive Biotechnologies announced today ... joining its Board of Director as Chair of the ... Zillow Group, Chad oversees all finance, treasury and accounting ... company,s core finance, treasury and accounting functions, and led ... acquisitions. In 2013, he was named Puget Sound Business ...
(Date:3/3/2015)... BlueInGreen announces the ... sales network. The business venture will bring the ... Atlantic Provinces, exclusively through Resource Systems. , Since ... Canada’s premiere manufacturing representative firms, hosting a diverse ... and wastewater markets. More information on Resource Systems ...
(Date:3/3/2015)... 03, 2015 Crown Bioscience, Inc., a ... launched a new Life Science division specializing in in ... , The first products released include in vivo ... soon to be released in vivo grade monoclonal antibodies ... expand their life science portfolio with additional antibody products ...
(Date:3/3/2015)... 3, 2015  Regenicin, Inc. (OTC Bulletin Board: ... development of and commercialization of regenerative cell therapies to ... today that it has received the final payment to ... Inc. (OTC Bulletin Board: AMBS ). ... the final payments due to Regenicin in the amount ...
Breaking Biology Technology:Adaptive Biotechnologies adds Chad Cohen, Zillow Group CFO, to Board of Directors 2BlueInGreen® Continues Canadian Expansion, Partners with Resource Systems Inc. 2Crown Bioscience Launches Life Science Product Catalog 2Regenicin (RGIN) Receives $2.3 Million in Final Payment from Amarantus 2Regenicin (RGIN) Receives $2.3 Million in Final Payment from Amarantus 3
Cached News: