HOME >> BIOLOGY >> NEWS
UC Berkeley scientists detail neural circuit that lets eye detect directional motion

Berkeley - Nearly 40 years ago scientists were startled to discover that the eye, far from being a still camera, actually has cells that respond to movement. Moreover, these cells are specialized to respond to movement in one direction only, such as left to right or right to left.

Now, in a paper in this week's issue of the journal Nature, biologists at the University of California, Berkeley, have finally detailed the cellular circuit responsible for motion detection in the eye's retina.

This circuit, which enables us to track moving objects, serves as an example of other brain circuits, some of which perform thousands of computations every second. The findings could aid the design of bionic eyes that track motion and process visual information like our own eyes.

"This work reveals a very sophisticated neural computation, the first non-linear computation performed by the nervous system for which a circuit is close to being solved," said Frank Werblin, professor of molecular and cell biology at UC Berkeley. "It is a preliminary step in understanding how more sophisticated computations are performed by the brain."

Werblin notes, for example, that we use motion detection every time we cross the street, anticipating when traffic will reach our intersection and deciding when to cross.

"Barry Bonds probably has superior motion-detecting neurons," he added, referring to the home-run hitter with the San Francisco Giants. "He takes a simple movement detector and, in the context of a highly sophisticated action, uses it, along with about a million other computations, both sensory and motor, to make contact with the ball."

The technically demanding experiments measuring the output of cells in the retina were conducted in Werblin's laboratory by graduate students Shelley I. Fried of the School of Optometry's Graduate Group in Vision Science and Thomas A. Mnch of the Helen Wills Neuroscience Institute. All are members of UC Berkel
'"/>

Contact: Robert Sanders
rls@pa.urel.berkeley.edu
510-643-6998
University of California - Berkeley
27-Nov-2002


Page: 1 2 3 4

Related biology news :

1. Landmark gene agreement announced by Samoan government and UC Berkeley for anti-AIDS drug Prostratin
2. Landmark agreement between Samoa and UC Berkeley could help search for AIDS cure
3. Berkeley Lab soil scientist Margaret Torn receives Presidential Early Career Award
4. MSU group reviews Berkeley venture into brave new science funding world
5. UC Berkeley museum biologists to repeat 85-year-old Yosemite National Park wildlife survey
6. Berkeley scientists create first 3-D map of protein universe
7. UC Berkeley, Joint Genome Institute target chloroplasts for clues to green plant evolution
8. Your brain is teaching your nose new tricks, say UC Berkeley researchers
9. UC Berkeley researchers are developing a microsized microscope that can peek inside living cells
10. Dietary supplements make old rats youthful, may help rejuvenate aging humans, according to UC Berkeley study
11. Inherent speed limit governs how quickly life bounces back after extinction, UC Berkeley research shows

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:7/22/2020)... , ... July 21, 2020 , ... ... transformation and innovation in technology and compliance, announces a new solution to manage ... must ensure every layer of their technology stack complies with FDA and global ...
(Date:7/10/2020)... ... ... Today CJ BIO announced the first in a series of Food Ingredient MasterClass webinars, ... revolutionizing ingredient mixes, nutritional content and flavor profiles across a range of savory foods ... AM (CDT) during SHIFT20, the virtual edition of the IFT Annual Meeting & Food ...
(Date:7/1/2020)... N.J. (PRWEB) , ... July 01, 2020 , ... ... announced that it had completed the purchase of Teva-Takeda Pharmaceuticals’ packaging facility in ... the company’s existing Japanese clinical supply facility located in Kakegawa, the new 60,000-square-foot ...
Breaking Biology News(10 mins):
(Date:8/31/2020)... ... 2020 , ... DuPont Nutrition & Biosciences announced today the ... plant operation will provide the local animal production industry with customized solutions according ... improve the flexibility of our offerings to the Chinese animal nutrition market,” said ...
(Date:8/12/2020)... ... August 11, 2020 , ... ... making available for free its new white paper – Simulated Transport Methodologies. ... into today’s biologics licensing application (BLA). In response, Modality Solutions shares an ...
(Date:8/3/2020)... , ... August 03, 2020 , ... Introducing Ardent Animal ... transformative growth, , Known as MediVet Biologics since its formation ... The new Ardent Animal Health will build on its base of innovative ...
(Date:7/31/2020)... ... 29, 2020 , ... Anomet Products has introduced new custom ... use with CRM, neurostimulation, vascular, and related devices. , Anomet Medical Clad ... performance, and cost criteria; especially where solid wire is limited. Typical configurations for ...
Breaking Biology Technology:
Cached News: