Navigation Links
The zebrafish's neural circuit prevents it from biting off more than it can chew
Date:11/1/2010

Between alerting us to danger and allowing us to spot prey, vision keeps many animals, including humans, alive. But exactly how does this important sense work, and why is it easier for us to spot movement of small objects in our field of vision, than to notice other things? The complexity of the neural network that supports vision has long baffled scientists.

Now, with a new technology and support from the National Science Foundation, Claire Wyart in Ehud Isacoff's lab at the University of California at Berkeley and Filo Del Bene at Herwig Baier's lab at the University of California at San Francisco have been able to follow entire populations of retinal and brain cells in their test animal: the zebrafish larva, and solve some of the mysteries of its neural circuit that underlies its vision.

The research team's findings were published in the October 29 issue of Science.

Using a newly developed genetically encoded fluorescent reporter of neural activity developed by Loren Looger at the Howard Hughes Medical Institute's Janelia Farm Research Campus, Wyart and Del Bene have been able to follow how large and small visual cues translate into electrical activity in a region of the zebrafish's brain.

The brain region of the zebrafish that receives input from the retina, called the optic tectum, is separated into layers. The top layer receives direct connections from retinal cells, and has a population of both excitatory and inhibitory neurons. These neurons connect to output neurons that project to other brain regions that control how the zebrafish chases prey.

Isacoff, Baier, Wyart and Del Bene have revealed that a large visual stimulus covering the entire field of vision (such as large floating debris, or another zebrafish) results in low output neuron activity. However small (prey-sized) items moving across the zebrafish's field of vision at a prey-like speed activate the output neurons very well. The basis of th
'/>"/>

Contact: Lily Whiteman
lwhitema@nsf.gov
703-292-8310
National Science Foundation
Source:Eurekalert  

Page: 1 2

Related biology news :

1. Neural stem cells attack glioblastoma cells
2. Searching for causes of neural disconnection in schizophrenia
3. Neural tissue contains imbalanced levels of proteins, U-M study finds
4. Induced neural stem cells: Not quite ready for prime time
5. Brain-controlled cursor doubles as a neural workout
6. Case Western Reserve University discovers Merkel cell originates from skin, not the neural crest
7. Mouse brain rewires its neural circuits to recuperate from damaged neural function after stroke
8. Essential nutrient found in eggs may help lower risk of neural tube defects
9. Neural stem cell differentiation factor discovered
10. Identification of a key molecular pathway required for brain neural circuit formation
11. Early brain activity sheds new light on the neural basis of reading
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
The zebrafish's neural circuit prevents it from biting off more than it can chew
(Date:9/15/2014)... allow us to better understand how the fish ... and provide the type of environmental data to ... siting of protected areas," said Paula Whitfield, a ... Ocean Science (NCCOS) and lead author of the ... the temperate-tropical transition zone, where historically, both temperate ...
(Date:9/15/2014)... 500 million years after it formed may have been ... continents and active crustal plates. , This alternate view ... gained substantial new support from the first detailed comparison ... years ago with those formed contemporaneously in Iceland, which ... early Earth. , The study was conducted by a ...
(Date:9/15/2014)... hearing and cognitive function may play roles in one,s ... rhythm, pitch, timbre, tone durations, and formal structure in ... article explain that extremes in musical aptitude (extreme capacity/no ... of individuals having moderate aptitude. , "This is a ... underlying genes, and it is influenced to varying degrees ...
Breaking Biology News(10 mins):Study finds warming Atlantic temperatures could increase range of invasive species 2Early Earth less hellish than previously thought 2Early Earth less hellish than previously thought 3
... ovarian ,chocolate, cysts for the brown liquid they contain, ... common, which can cause ongoing pain and complications. A ... and effective remedy the oral contraceptive pill (OCP). ... Reilly from Auckland, New Zealand, highlight a trial published ...
... AUGUSTA, Ga. - New drugs that are helping fight ... cardiovascular disease, Medical College of Georgia researchers said. Cancer ... as a cause. Heat shock protein 90 inhibitors as a ... director of MCG,s Vascular Biology Center. "I think hsp90 ...
... use of Chinese wolfberries to improve vision deficiencies that are ... assistant professor of human nutrition, is studying wolfberries and their ... that the fruit can lower the oxidative stress that the ... would not say that wolfberries are a medicine, but they ...
Cached Biology News:New cancer therapy may fight cardiovascular disease 2Study uses Chinese wolfberries to improve vision imperfections caused by type-2 diabetes 2Study uses Chinese wolfberries to improve vision imperfections caused by type-2 diabetes 3
(Date:9/16/2014)... , Sept. 16, 2014 In preparation ... Texas -based cybersecurity company focused on authentication and ... will support the ability to generate a OTP through ... As a pioneer of user-based RFID authentication, 2FA,s solutions ... physical access, for many years. RFID authentication is broadly ...
(Date:9/15/2014)... , Sept. 15, 2014   Global Science ... of scientific products and services for satellite and ... Solution for Integrated Services (OASIS) from the General ... was selected to provide the government best-value solutions ... Business (SB) category in Pool 4. The OASIS ...
(Date:9/15/2014)... a patient has sepsis, a life-threatening condition in which ... often too fast for antibiotics to help. A new ... a team at Harvard,s Wyss Institute for Biologically Inspired ... , "Even with the best current treatments, sepsis ... 30 percent of the time," said Mike Super, Ph.D., ...
(Date:9/15/2014)... Sept. 15, 2014  iVinci Health LLC, the company ... Revenue Management system, branded as VisitPay®, has successfully closed ... the launch of a new extension to VisitPay® – ... easy and convenient way for patients to manage their ... by them and their families. The new ...
Breaking Biology Technology:2FA, Inc. Announces RFID-based One-Time Password (OTP) Authentication 2Global Science & Technology, Inc. Awarded GSA OASIS Small Business Contract 2Global Science & Technology, Inc. Awarded GSA OASIS Small Business Contract 3Blood-cleansing biospleen device developed for sepsis therapy 2Blood-cleansing biospleen device developed for sepsis therapy 3Blood-cleansing biospleen device developed for sepsis therapy 4iVinci Health Raises $5M to Fuel National Expansion, Announces Launch of Personal Finance Portal for Healthcare 2iVinci Health Raises $5M to Fuel National Expansion, Announces Launch of Personal Finance Portal for Healthcare 3
... , SANTA CLARA, Calif. , Jan. 28 Coherent, Inc. (Nasdaq: COHR ), a world leader in providing ... , FINANCIAL HIGHLIGHTS , , , , , ... Three Months Ended, ... ------------------, GAAP Results ...
... , MADRID , Jan. 28 The ... category goes to physicist and chemist Richard N. Zare , ... , of the University of Maryland , for their independent, ... unraveled secrets of nature,s building blocks and the underlying interactions between ...
... ... Webster Cavenee, Ph.D., and Frank Furnari, Ph.D., along with their team at ... Diego School of Medicine, have recently discovered one way that brain tumors ... stop tumor growth. This breakthrough discovery revealed a new cellular mechanism ...
Cached Biology Technology:Coherent, Inc. Reports Strong First Fiscal Quarter Results and Raises Annual Sales Guidance 2Coherent, Inc. Reports Strong First Fiscal Quarter Results and Raises Annual Sales Guidance 3Coherent, Inc. Reports Strong First Fiscal Quarter Results and Raises Annual Sales Guidance 4Coherent, Inc. Reports Strong First Fiscal Quarter Results and Raises Annual Sales Guidance 5Coherent, Inc. Reports Strong First Fiscal Quarter Results and Raises Annual Sales Guidance 6Coherent, Inc. Reports Strong First Fiscal Quarter Results and Raises Annual Sales Guidance 7Coherent, Inc. Reports Strong First Fiscal Quarter Results and Raises Annual Sales Guidance 8Coherent, Inc. Reports Strong First Fiscal Quarter Results and Raises Annual Sales Guidance 9Coherent, Inc. Reports Strong First Fiscal Quarter Results and Raises Annual Sales Guidance 10Coherent, Inc. Reports Strong First Fiscal Quarter Results and Raises Annual Sales Guidance 11Coherent, Inc. Reports Strong First Fiscal Quarter Results and Raises Annual Sales Guidance 12Zare and Fisher Win the BBVA Foundation Frontiers of Knowledge Award in Basic Sciences for Rendering Molecules Visible and Analyzing Their Collective Behavior 2Zare and Fisher Win the BBVA Foundation Frontiers of Knowledge Award in Basic Sciences for Rendering Molecules Visible and Analyzing Their Collective Behavior 3Zare and Fisher Win the BBVA Foundation Frontiers of Knowledge Award in Basic Sciences for Rendering Molecules Visible and Analyzing Their Collective Behavior 4Zare and Fisher Win the BBVA Foundation Frontiers of Knowledge Award in Basic Sciences for Rendering Molecules Visible and Analyzing Their Collective Behavior 5Zare and Fisher Win the BBVA Foundation Frontiers of Knowledge Award in Basic Sciences for Rendering Molecules Visible and Analyzing Their Collective Behavior 6Zare and Fisher Win the BBVA Foundation Frontiers of Knowledge Award in Basic Sciences for Rendering Molecules Visible and Analyzing Their Collective Behavior 7NFCR Scientists Discover Brain Tumor's “Escape Path” 2NFCR Scientists Discover Brain Tumor's “Escape Path” 3
Agarase cleaves agarose to neoagaro-oligosaccharides, and is used for,quantitative, gentle recovery of DNA from low melting point agarose....
Form: Ready to use Applications: ELISA...
Form: Concentrated Applications: ELISA...
Form: Ready to use Applications: Western Blot, ELISA...
Biology Products: