Navigation Links
The brain of the fly -- a high-speed computer
Date:7/12/2010

cell to any particular movement stimulus, this is precisely what the neurobiologists in Martinsried have now succeeded in doing.

The brain of the fly beats any computer

The electrical activity of individual nerve cells is usually measured with the aid of extremely fine electrodes. In the fly, however, most of the nerve cells are simply too small to be measured using this method. Nevertheless, since the fly is the animal model in which motion perception has been studied in most detail, the scientists were all the more determined to prize these secrets from the insect's brain. A further incentive is the fact that, albeit the number of nerve cells in the fly is comparatively small, they are highly specialized and process the image flow with great precision while the fly is in flight. Flies can therefore process a vast amount of information about proper motion and movement in their environment in real time - a feat that no computer, and certainly none the size of a fly's brain, can hope to match. So it's no wonder that deciphering this system is a worth-while undertaking.

Fluorescence molecules and state-of-the-art microscopes

"We had to find some way of observing the activity of these tiny nerve cells without electrodes", Dierk Reiff explains one of the challenges that faced the scientists. In order to overcome this hurdle, the scientists used the fruit fly Drosophila melanogaster and some of the most up-to-date genetic methods available. They succeeded in introducing the indicator molecule TN-XXL into individual nerve cells. By altering its fluorescent properties, TN-XXL indicates the activity of nerve cells.

To examine how the brains of fruit flies process motion, the neurobiologists presented the insects with moving stripe patterns on a light-diode screen. The nerve cells in the flies' brains react to these LED light impulses by becoming active, thus causing the luminance of the indicator molecules to change
'/>"/>

Contact: Stefanie Merker
merker@neuro.mpg.de
49-898-578-3514
Max-Planck-Gesellschaft
Source:Eurekalert  

Page: 1 2 3 4

Related biology news :

1. Penn biophysicists create new model for protein-cholesterol interactions in brain and muscle tissue
2. During exercise, the human brain shifts into high gear on alternative energy
3. Millisecond brain signals predict response to fast-acting antidepressant
4. Food for thought -- regulating energy supply to the brain during fasting
5. Risk and reward compete in brain
6. Brainy genes, not brawn, key to success on mussel beach
7. Brain-nourishing molecule may predict schizophrenia relapse
8. Brain structure provides key to unraveling function of bizarre dinosaur crests
9. MU brain imaging center provides research for autism, schizophrenia and Parkinsons disease
10. Key to function of dinosaur crests found in brain structure
11. Emotion and scent create lasting memories -- even in a sleeping brain
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
The brain of the fly -- a high-speed computer
(Date:10/1/2014)... October 1, 2014 ... der Biowissenschaften   Die Biowissenschaften erlebten ... Gehen zahlreicher Detektionstechnologien. Einige davon sind Senkrechtstarter ... Die Photonen-Upconversion ist eine neuartige Detektionstechnologie, die ... Begeisterung aufgenommen wurde. Jetzt ist diese Technologie ...
(Date:9/30/2014)... the Mediterranean each year, but its deep-blue waters ... Almost 1,000 alien species, including fish, crustaceans, and ... human activities. In the open-access journal Frontiers ... researchers analyzed data from a new information system ... the introduction of alien species has changed the ...
(Date:9/30/2014)... --- Do we think of nature as something that we ... need to "preserve?" Or do we think of ourselves as ... of nature, but what about a house? , The ... also reflected in our actions, our speech and in cultural ... the University of Washington, the American Indian Center of Chicago ...
Breaking Biology News(10 mins):Innovative Verwendungslösung für die Photonen-Upconversion 2Innovative Verwendungslösung für die Photonen-Upconversion 3Biodiversity in the Mediterranean is threatened by alien species 2The cultural side of science communication 2
... Ripan Malhi looks to DNA to tell the story ... happened to them once they were here. He will share ... First Three Decades ," at The Royal Society in London on ... Institute for Genomic Biology at Illinois , will describe his collaborative ...
... has discovered a gene associated with a high risk ... be an actual cause of this form of asthma, ... "Because asthma is a complex disease, with multiple interacting ... occurring between ages two and six," said co-lead author ...
... Earth system was recovering from perhaps the single-most profound modification ... oceans. This led to a series of major changes ... of the Norwegian Geological Survey NGU reports in the latest ... in the distribution of one of life,s key elements, phosphorous. ...
Cached Biology News:Ancient, modern DNA tell story of first humans in the Americas 2Novel gene variant found in severe childhood asthma 2
(Date:10/1/2014)... , Oct. 1, 2014  Pressure BioSciences, Inc. ... in the development and sale of high pressure-based sample ... announced it has been invited to present at the ... Warsaw , Poland.  The Conference will take ... 2014.  Mr. Richard T. Schumacher , President and ...
(Date:10/1/2014)... participants committed to not only creating unique business card ... tweaking and testing virtual models and 3D test prints ... “I enjoyed being involved as a judge,” stated a ... a commendable range exploring the technical capabilities of the ... the creativity of the contestants.” , Array Architects is ...
(Date:10/1/2014)... 01, 2014 Slone Partners , ... Healthcare IT, and Laboratory Testing industries, reported a 120% ... the director level and above from July 2013 to ... on top of rapid breakthroughs in diagnostics, reimbursement has ... companies have been forced to fold, consolidate, or carry ...
(Date:9/30/2014)... . , The researchers ... semiconductor layer. Quantum dots are small structures that spontaneously emit ... laser pulse is fired at the photonic crystal, its refractive ... in the electromagnetic field around it. This change can speed ... dot. As soon as the refractive index recovers its usual ...
Breaking Biology Technology:Pressure BioSciences, Inc. Invited to Present at the 2nd Global Life Sciences Conference in Warsaw, Poland 2Pressure BioSciences, Inc. Invited to Present at the 2nd Global Life Sciences Conference in Warsaw, Poland 3Pressure BioSciences, Inc. Invited to Present at the 2nd Global Life Sciences Conference in Warsaw, Poland 4Array Architects Challenges Staff to Create with 3D Printer 2Slone Partners Meets Growing Demand as Industry Focuses on Reimbursement & Regulation 2Ultrafast remote switching of light emission 2
... to take for granted the increasing computerization of society. ... But how about e-tickets for speeding or running a ... have been progressively fitted with more advanced computer systems, ... Instead of writing out tickets and filing them by ...
... Madison, Wis. Waupaca-based ABC Computers will receive $250,000 ... expected to create 18 jobs. The tax credits were announced ... Wisconsin Regional Economic Partnership (NEWREP) Technology Zone. , ,ABC ... will invest $1.8 million to construct and equip a new ...
... of Mike Strand in Eau Claire and a finalist ... $250,000 from the Chippewa Valley Angel Investors Network ... to put video screens showing advertising in lobbies where ... competition finals, it won the emerging growth category at ...
Cached Biology Technology:Wisconsin State Patrol goes high-tech with e-tickets 2
Complement C1r [Human]...
... ISO 9001:2000 Certified USDA Research Registered ... SOP's Training AALAS Certified Technicians ... Procedures GLP Documentation Upon Request Focus ... point for all your custom immunology service ...
... ECL Plus Western Blotting Reagent Pack, ... and secondary detection of membrane-bound mouse and ... nitrocellulose or PVDF membranes. Detection reagents are ... for use with ECL Plus. Category: ...
Agar, 5 lb. Bacteriological.Moisture: < 10%, ash: < 6.5%. Category: Nucleotides & Enzymes & Biochemicals, Ultrapure Biochemicals ....
Biology Products: