Navigation Links
Brain may 'see' more than the eyes, study indicates
Date:11/1/2012

Vision may be less important to "seeing" than is the brain's ability to process points of light into complex images, according to a new study of the fruit fly visual system currently published in the online journal Nature Communications.

University of Virginia researchers have found that the very simple eyes of fruit fly larvae, with only 24 total photoreceptors (the human eye contains more than 125 million), provide just enough light or visual input to allow the animal's relatively large brain to assemble that input into images.

"It blows open how we think about vision," said Barry Condron, a neurobiologist in U.Va.'s College of Arts & Sciences, who oversaw the study. "This tells us that visual input may not be as important to sight as the brain working behind it. In this case, the brain apparently is able to compensate for the minimal visual input."

Condron's graduate students, Elizabeth Daubert, Nick Macedonia and Catherine Hamilton, conducted a series of experiments to test the vision of fruit fly larvae after they noticed an interesting behavior of the animals during a different study of the nervous system. They found that when a larva was tethered to the bottom of a petri dish, other larvae were attracted to it as it wiggled attempting to free itself.

The animals apparently saw the writhing motion and were attracted to it, willingly traveling toward it. After several further experiments to understand how they sensed the motion, the researchers learned that the nearly blind animals likely were seeing the action, by wagging their heads side-to-side in a scanning motion to detect it, rather than by only hearing it or feeling vibration or by smelling the trapped larva. This was a surprise because of the very simple and limited vision of fruit fly larvae.

"The answer must be in the large, somewhat sophisticated brain of these animals," Condron said. "They are able to take just a couple dozen points of light and then process that into
'/>"/>

Contact: Fariss Samarrai
fls4f@virginia.edu
434-924-3778
University of Virginia
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. Primates brains make visual maps using triangular grids
2. Moderate drinking decreases number of new brain cells
3. Preemies brains reap long-term benefits from Kangaroo Mother Care
4. Fighting melanomas attraction to the brain
5. Sandia shows monitoring brain activity during study can help predict test performance
6. Brain training may lessen cognitive impairments associated with coronary bypass surgery
7. Scientists discover how the brain ages
8. Storm of awakened transposons may cause brain-cell pathologies in ALS, other illnesses
9. A brain filter for clear information transmission
10. EU FET program funds research on 3D neuronal structures mimicking human brain tissue
11. Brainy beverage: Study reveals how green tea boosts brain cell production to aid memory
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:12/19/2014)... , Dec. 18, 2014   LaunchKey , the first ... post-password and Internet of Things era, today announced the ... venture round was led by Metamorphic Ventures with participation ... Partners, VegasTechFund, and others.  LaunchKey has raised $4 million ...
(Date:12/17/2014)... SM announced today its completion of a Good ... current U.S. Food and Drug Administration (FDA) regulations. This ... smart phone application trials utilizing the highest principles for ... determined to improve global healthcare access, quality, and delivery ...
(Date:12/17/2014)... , Dec. 16, 2014  Automation is fundamentally transforming the ... at international borders. Over the past decade, ePassports, biometric ... to self process through border control via eGates and ... of airports, seaports, and land borders across the globe. ...
Breaking Biology News(10 mins):LaunchKey Raises $3 Million in Additional Funding Led by Metamorphic Ventures 2LaunchKey Raises $3 Million in Additional Funding Led by Metamorphic Ventures 3HITLAB Completes GCP Audit for FDA Smart Device & App Compliance 2Automated Border Control (ABC) Transforms the Global Travel Experience With More Than 2500 ABC eGates and APC Kiosks Deployed In Airports, Seaports, and Land Borders Worldwide 2
... of functional, stable blood vessels at the site of ... the Georgia Institute of Technology have been able to ... "This study shows that bio-artificial materials are suitable ... on the study Andrs Garca, professor and Woodruff Faculty ...
... , , MILPITAS, Calif., Dec. 21 Cermetek Microelectronics, ... V.22bis modem module (2400 bits per second), is the first ... medical equipment safety. Cermetek has targeted the CH24606 as a ... for less than $15 in 1000 piece quantities. , Aside ...
... supposedly used it to guide the construction the Pyramids. The ... on it. Fictional Harvard symbologist Robert Langdon tried to unravel ... "It" is the golden ratio, a geometric proportion that ... the eye and has been the root of countless mysteries ...
Cached Biology News:Bioengineered materials promote the growth of functional vasculature, new study shows 2Bioengineered materials promote the growth of functional vasculature, new study shows 3Cermetek Introduces Medically Approved Modem Module 2Mystery of golden ratio explained 2
(Date:1/22/2015)... Davis, California (PRWEB) January 22, 2015 ... of Accelerator Mass Spectrometry (AMS) services to the pharmaceutical ... PhD has joined the company in the position of ... 30 years of broad and valuable experience in drug ...
(Date:1/22/2015)... January 21, 2015 Cambridge Semantics, the leading ... today announced that 2014 was a record-breaking year across the ... of the Anzo Smart Data Platform and our Smart Data ... insights from diverse data which led to record growth for ...
(Date:1/22/2015)... 2015 zFlo Motion , a US ... an exciting product from a new partner. STT-Systems ... the past 15 years, with offerings in the optical-motion capture, ... IMU system (inertial measurement unit), iSen, is opening eyes around ...
(Date:1/22/2015)... NEW BRUNSWICK , Nueva Jersey , 22 ... Award for Biomedical Research abre hoy su llamada ... las personas cuya investigación científica ha hecho, o tiene ... de la salud humana. Las nominaciones se aceptarán hasta ...
Breaking Biology Technology:Eckert & Ziegler Vitalea Science appoints Mark Seymour, PhD as Director of Science & Technology 2Eckert & Ziegler Vitalea Science appoints Mark Seymour, PhD as Director of Science & Technology 3Cambridge Semantics Announces Record Results for 2014 23D Motion Capture Just Got Easy 2El Dr. Paul Janssen Award for Biomedical Research emite su llamada a los nominados para 2015 2El Dr. Paul Janssen Award for Biomedical Research emite su llamada a los nominados para 2015 3El Dr. Paul Janssen Award for Biomedical Research emite su llamada a los nominados para 2015 4
... , SAN DIEGO, Sept. 3 Gen-Probe Incorporated (Nasdaq: ... conferences: , , , Baird,s 2009 Health ... , Thomas Weisel Partners, Healthcare Conference 2009 in Boston at ... Stanley Global Healthcare Unplugged Conference in New York at 8:35 a.m. ET on September ...
... ... detection, diagnostics capabilities , ... Argonne, IL (PRWEB) September 3, 2009 -- Researchers at the ... improve the stability of antibodies. The technique could lead to better biosensors, disease ...
... NEW YORK, Sept. 3 Reportlinker.com announces that a new market research ... Proteomics: Technologies and Global Markets , , ... REPORT HIGHLIGHTS , , * ... in 2008 to an estimated $7.9 billion in 2009 and $19.4 billion ...
Cached Biology Technology:Gen-Probe to Webcast Four Upcoming Investor Presentations 2Argonne Researchers Develop Method that Aims to Stabilize Antibodies 2Argonne Researchers Develop Method that Aims to Stabilize Antibodies 3Argonne Researchers Develop Method that Aims to Stabilize Antibodies 4Reportlinker Adds Proteomics: Technologies and Global Markets Report 2Reportlinker Adds Proteomics: Technologies and Global Markets Report 3Reportlinker Adds Proteomics: Technologies and Global Markets Report 4Reportlinker Adds Proteomics: Technologies and Global Markets Report 5Reportlinker Adds Proteomics: Technologies and Global Markets Report 6Reportlinker Adds Proteomics: Technologies and Global Markets Report 7Reportlinker Adds Proteomics: Technologies and Global Markets Report 8Reportlinker Adds Proteomics: Technologies and Global Markets Report 9Reportlinker Adds Proteomics: Technologies and Global Markets Report 10Reportlinker Adds Proteomics: Technologies and Global Markets Report 11Reportlinker Adds Proteomics: Technologies and Global Markets Report 12Reportlinker Adds Proteomics: Technologies and Global Markets Report 13Reportlinker Adds Proteomics: Technologies and Global Markets Report 14Reportlinker Adds Proteomics: Technologies and Global Markets Report 15Reportlinker Adds Proteomics: Technologies and Global Markets Report 16Reportlinker Adds Proteomics: Technologies and Global Markets Report 17Reportlinker Adds Proteomics: Technologies and Global Markets Report 18Reportlinker Adds Proteomics: Technologies and Global Markets Report 19Reportlinker Adds Proteomics: Technologies and Global Markets Report 20Reportlinker Adds Proteomics: Technologies and Global Markets Report 21
... T1 Thermocycler provides high speed and excellent ... with a TGradient Thermocycler can be run ... with a silver block for 48 or ... well plates or in-situ applications are available. ...
SDS-OutT SDS Precipitation Reagent...
Designed for use with the Agencourt SprintPrep 384 kit and all MCPrep reagent kits. Used with flat bottom 96-well microplates such as deep well plates used to culture bacteria....
... Ideal for staining westerns and includes stickers ... Pour spouts in each corner facilitate pouring ... be used for identification. Lid is designed ... for staining several gels simultaneously. Lid also ...
Biology Products: