Navigation Links
How vision makes sure that little fish do not get carried away
Date:4/17/2014

with his department at the Max Planck Institute of Neurobiology, he searches for and describes the neural networks in the brains of zebrafish larvae that control certain types of behaviour. This is no easy task, as, despite its minuscule size, the brain of a 5-mm-long fish larva consists of several hundred thousand neurons. One advantage, however, is that the brain of the fish larva is almost completely transparent. Neurons can thus be observed directly under the microscope without requiring any surgical dissection.

For their experiments, the scientists placed the fish larvae in circular containers, where they saw black-and-white stripes that moved around them. The animals demonstrated different reactions depending on the movement pattern presented. When the stripes moved from back to front for both eyes, the fish swam straight ahead or tried to turn around. However, when the stripes moved around the fish in a clockwise or counter-clockwise direction, the two eyes followed the perceived direction of rotation. The compensatory movements of the entire body (optomotor behaviour) or of the eyes alone (optokinetic behaviour) should make the motion signal on the retina as small as possible and keep the fish stable in place.

The neurobiologists wanted to identify the neurons while the brain was processing self-motion and initiating optomotor or optokinetic movements. "It was like looking for a needle in a haystack," explains Fumi Kubo, first author of the study. "This would have been completely inconceivable just a few years ago." For her study, Fumi Kubo, who worked in collaboration with Aristides Arrenberg and Wolfgang Driever from the Institute of Biology I at the University of Freiburg and scientists from the Freiburg Cluster of Excellence BIOSS Centre for Biological Signalling Studies, used a new scientific method: the imaging of the entire brain. Thanks to the latest fluorescent dyes and sophisticated genetic techniques, it has recently become pos
'/>"/>

Contact: Dr. Herwig Baier
hbaier@neuro.mpg.de
49-898-578-3200
Max-Planck-Gesellschaft
Source:Eurekalert  

Page: 1 2 3 4

Related biology news :

1. Ethical Adaptation to Climate Change envisions the good life in a harsher world
2. First oral agent to quell invasive macular degeneration, restore lost vision
3. New key mechanism in cell division discovered
4. MADRID-MIT M+Vision Consortium hosts Biomedical Innovation Conference 2012
5. Regenerated cells may restore vision after corneal dysfunction
6. American Association for the Advancement of Science - Pacific Division convenes in Boise June 24-27
7. A new vision for harnessing data about life on Earth
8. Robot vision: Muscle-like action allows camera to mimic human eye movement
9. BWH launches a new research division focused on integrating systems biology and medicine
10. American Health Assistance Foundation announces grants to advance promising vision research
11. Division of labor offers insight into the evolution of multicellular life
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
How vision makes sure that little fish do not get carried away
(Date:7/23/2014)... -- What do mollusks, starfish, and corals have ... they are all calcifiersorganisms that use calcium from ... shells for stability and protection. , The July ... by the Marine Biological Laboratory, addresses the challenges ... worldwide. , As atmospheric carbon dioxide rises, the ...
(Date:7/23/2014)... of getting tangled and forming knots. Scientists study these ... disentangle them (e.g. useful for gene sequencing techniques). Cristian ... (SISSA) in Trieste and his team have been carrying ... their dynamics. In their latest paper, just published in ... Marco Di Stefano, first author and PhD student at ...
(Date:7/23/2014)... exists for Alzheimer,s disease, the devastating neurological disease ... are now reporting new progress on a set ... shows promise as a potential oral therapy for ... of Medicinal Chemistry . , Carlo Ballatore, Kurt ... healthy brain, the protein known as tau binds ...
Breaking Biology News(10 mins):Calcification in changing oceans explored in special issue of The Biological Bulletin 2
... nowhere is this math more evident than in vertebrates, which ... many species do not. Snakes, of course, have no digits, ... a good handle on how these developmental changes are orchestrated ... on birds: Which digits are they: a thumb with index ...
... from the University of California, Davis, and the University of ... the energy-generating structures within cells, divide. The work, which could ... was published today (Sept. 2) in the journal Science ... Jodi Nunnari, professor and chair of molecular cell biology at ...
... two images taken simultaneously with different Envisat sensors of Hurricane Irene, ... black and white image is from Envisat,s radar, covering the coastal ... provides an unusual view of a hurricane as it shows the ... of the image, a dark spot can be seen where the ...
Cached Biology News:New insight in how cells' powerhouse divides 2
(Date:7/23/2014)... have made great strides in saving China,s endangered national ... over 65 giant panda reserves that have been established ... just 1596 pandas remain in the wild. , ... save the panda by improving genetic diversity, avoid inbreeding ... how are these high-profile programs doing so far? , ...
(Date:7/23/2014)... 2014  AuraSense Therapeutics, the pioneer in developing spherical ... and immunotherapeutic agents, announced today that ... executive leadership team as chief financial officer ... joining AuraSense Therapeutics, Mr. Snyder was Executive ... Cellular Dynamics International Inc., where he was ...
(Date:7/23/2014)... julio de 2014 ADB International Group ... anunciado hoy una asociación con Austen BioInnovation Institute ... el Instituto), para el propósito de llevar el ... de señal bioeléctrica (el E-QURE BST Device), al ... tiene una importante experiencia en cicatrización de heridas, ...
(Date:7/23/2014)... , July 23, 2014 /PRNewswire/ - BioAmber ... biotechnology company producing sustainable chemicals, today announced that the ... full their option to purchase an additional 420,000 ... price of $12.00 per share, less underwriting discounts ... underwritten public offering of 2,800,000 shares of common ...
Breaking Biology Technology:AuraSense Therapeutics Appoints Biotechnology Veteran David S. Snyder as Chief Financial Officer 2ADB International Group Inc. anuncia una asociación con Austen BioInnovation Institute 2ADB International Group Inc. anuncia una asociación con Austen BioInnovation Institute 3ADB International Group Inc. anuncia una asociación con Austen BioInnovation Institute 4ADB International Group Inc. anuncia una asociación con Austen BioInnovation Institute 5ADB International Group Inc. anuncia una asociación con Austen BioInnovation Institute 6BioAmber announces exercise in full of underwriters' option in connection with previously priced follow-on offering 2BioAmber announces exercise in full of underwriters' option in connection with previously priced follow-on offering 3
... an improved governance structure, the benefits of nanotechnology may ... not trust the cutting-edge technology, says David Rejeski, director ... on Thursday, April 24, before the Senate subcommittee on ... dark horse in nanotechnologys future, states Rejeski in his ...
... Sangamo,BioSciences, Inc. (Nasdaq: SGMO ) today announced that ... on Wednesday, April 30,2008, after the market closes. The ... 2:00 p.m. PT, which will be open to the ... company will review,the financial results and discuss other business ...
... 23 /PRNewswire-FirstCall/ - Oncolytics Biotech Inc.,("Oncolytics") (TSX:ONC, NASDAQ:ONCY) ... group at St. James,s University Hospital in Leeds,U.K. ... in the May 1, 2008,online issue of The ... Human Dendritic Cells to Promote Innate Antitumor Immunity.", ...
Cached Biology Technology:Improved governance needed to realize nanotech's benefits 2Sangamo BioSciences Announces First Quarter Conference Call and Webcast 2Sangamo BioSciences Announces First Quarter Conference Call and Webcast 3Oncolytics Biotech Inc. Announces Journal of Immunology Publication on Reovirus Activation of Dendritic Cells 2
... a highly purified preparation of the catalytic ... which recognizes the identical cleavage site as ... enzymatic activity (1). Novagen&'s enzyme is produced ... the highest activity available, and is qualified ...
Strip Removal Tool 25/Box...
... The Beacon 2000 Fluorescence Polarization System ... research and assay development. Standard Beacon ... 2000 System uses a quartz-halogen lamp ... of 360-700 nm. It accommodates all ...
... Effectively condenses and traps a wide variety of ... pump oil. Easy-to-use glass condensation flask (GCF400) allows ... contained jar for easy draining. Rapid cooling time ... glass flask for quick solvent changes ...
Biology Products: