Navigation Links
Zooming in for a safe flight
Date:9/1/2014

As nocturnal animals, bats are perfectly adapted to a life without light. They emit echolocation sounds and use the delay between the reflected echoes to measure distance to obstacles or prey. In their brains, they have a spatial map representing different echo delays. A study carried out by researchers at Technische Universitt Mnchen (TUM) has shown for the first time that this map dynamically adapts to external factors.

Closer objects appear larger

When a bat flies in too close to an object, the number of activated neurons in its brain increases. As a result, the object appears disproportionately larger on the bat's brain map than objects at a safe distance, as if it were magnified. "The map is similar to the navigation systems used in cars in that it shows bats the terrain in which they are moving," explains study director Dr. Uwe Firzlaff at the TUM Chair of Zoology. "The major difference, however, is that the bats' inbuilt system warns them of an impending collision by enhancing neuronal signals for objects that are in close proximity."

Bats constantly adapt their flight maneuvers to their surroundings to avoid collisions with buildings, trees or other animals. The ability to determine lateral distance to other objects also plays a key role here. Which is why bats process more spatial information than just echo delays. "Bats evaluate their own motion and map it against the lateral distance to objects," elaborates the researcher.

Brain processes complex spatial information

In addition to the echo reflection time, bats process the reflection angle of echoes. They also compare the sound volume of their calls with those of the reflected sound waves and measure the wave spectrum of the echo. "Our research has led us to conclude that bats display much more spatial information on their acoustic maps than just echo reflection."

The results show that the nerve cells interpret
'/>"/>

Contact: Barbara Wankerl
barbara.wankerl@tum.de
49-892-892-2562
Technische Universitaet Muenchen
Source:Eurekalert

Page: 1 2

Related biology news :

1. Patients with hypoventilation may need supplemental oxygen on-board flights
2. Smart Technology Consumers Interest in Mobile Payment Products Grows - Company Secures Deal with Major Airline to Display Advertisements in Flight for its Next Generation Smart Wallet
3. New feathered predatory fossil sheds light on dinosaur flight
4. Fruit fly immunity fails with fungus after (space)flight
5. Project MERCCURI crowdsourced space station samples take flight
6. Fight or flight? Vocal cues help deer decide during mating season
7. Climate change may disrupt butterfly flight seasons
8. The secrets of a bugs flight
9. Hovering is a bother for bees: Fast flight is more stable
10. New evidence of dinosaurs role in the evolution of bird flight
11. SF State biologists tag zombees to track their flight
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:9/30/2014)... suite of perilous threats in today,s ocean. From ... change, fragile coral ecosystems are disappearing at unprecedented ... species of corals surrounding the island of Moorea ... their tropical environment: coral guard-crabs. New research from ... Station scientist Seabird McKeon and the museum,s predoctoral ...
(Date:9/30/2014)... 2014 Winners of The Economist,s prestigious Innovation ... to take place at the JW Marriott Hong Kong on Friday, ... will share their experiences and the lessons those hold for others. ... innovation over the past decade, will be presented at a ceremony ... summit. It will be the first time the ceremony has come ...
(Date:9/29/2014)... new study confirms that the exposure to tar tended ... of regular cigarettes. Similarly, exposure to nicotine tended ... popular type of cigarette in several countries around the ... certain toxic chemicals in the smoke of these cigarettes ... lower levels of chemicals in the smoke are not ...
Breaking Biology News(10 mins):Smithsonian scientists discover coral's best defender against an army of sea stars 2Hear from The Economist's 2014 Innovation Award Winners at Innovation Summit on October 10th in Hong Kong 2Hear from The Economist's 2014 Innovation Award Winners at Innovation Summit on October 10th in Hong Kong 3Hear from The Economist's 2014 Innovation Award Winners at Innovation Summit on October 10th in Hong Kong 4Hear from The Economist's 2014 Innovation Award Winners at Innovation Summit on October 10th in Hong Kong 5Hear from The Economist's 2014 Innovation Award Winners at Innovation Summit on October 10th in Hong Kong 6Hear from The Economist's 2014 Innovation Award Winners at Innovation Summit on October 10th in Hong Kong 7Slim cigarette smokers not exposed to more harmful chemicals 2
... activity resource, a personal assistant - computers are ubiquitous. ... lot to be desired: they rapidly become obsolete, typically ... components that are difficult to recycle. Moreover, they consume ... release of CO2 into the atmosphere. Employees at ...
... a vital element not only for plants but also ... have been faced with a growing shortage of this ... been steadily increasing. It is therefore high time to ... task, because phosphorus cannot be replaced by any other ...
... a biological marker that may help to identify ... rapid-acting antidepressant. The brain signal, detectable by noninvasive ... mechanism, which are vital for drug development, say ... is among the latest of several such markers, ...
Cached Biology News:Eco-computer with a natural wood look 2Using wastewater as fertilizer 2Using wastewater as fertilizer 3Brain signal IDs responders to fast-acting antidepressant 2Brain signal IDs responders to fast-acting antidepressant 3Brain signal IDs responders to fast-acting antidepressant 4Brain signal IDs responders to fast-acting antidepressant 5Brain signal IDs responders to fast-acting antidepressant 6
(Date:10/1/2014)... 2014 The U.S. Department of Labor ... University Edwardsville as part of the Trade Adjustment Assistance ... is co-administered by the Department of Labor and Department ... Labor Thomas E. Perez and Secretary of Education Arne ... training grants to nearly 270 colleges across the country. ...
(Date:9/30/2014)... September 30, 2014 Applying a well-known optical ... at Harvard University has demonstrated the ability to ... work that holds promise for making future, flexible ... the sides of next-gen rocket ships and spacecraft ... passes through oil in water, it becomes iridescent, ...
(Date:9/30/2014)... NEW YORK , Sept. 30, 2014 /PRNewswire/ ... trends and segments with highest potential revenues Do ... Visiongain,s updated report gives you revenue predictions for ... ahead. For those therapies you find financial data, ... new analysis you get sales forecasts to 2024 ...
(Date:9/30/2014)... (PRWEB) September 30, 2014 Proove ... medicine, is excited to announce a new genetic test ... The Proove Pain Perception Test will provide physicians ... and why pain tolerance levels are stratified between individuals. ... identify whether a person has a genetic predisposition that ...
Breaking Biology Technology:U.S. Dept. of Labor Awards SIUE Nearly $10-Million Grant 2U.S. Dept. of Labor Awards SIUE Nearly $10-Million Grant 3U.S. Dept. of Labor Awards SIUE Nearly $10-Million Grant 4Taking thin films to the extreme 2Biosimilars and Follow-On Biologics: World Industry and Market Prospects 2014-2024 2Biosimilars and Follow-On Biologics: World Industry and Market Prospects 2014-2024 3Biosimilars and Follow-On Biologics: World Industry and Market Prospects 2014-2024 4Biosimilars and Follow-On Biologics: World Industry and Market Prospects 2014-2024 5Proove Biosciences is Now Offering the Proove Pain Perception Genetic Test to Help Physicians Assess Patient Pain Tolerance Levels 2Proove Biosciences is Now Offering the Proove Pain Perception Genetic Test to Help Physicians Assess Patient Pain Tolerance Levels 3
... Principle Reached to Terminate Marketing Agreement with Triax ... on Most Favorable Terms, NAPA, Calif., May 15 ... company engaged in the development,of technologies that target the ... quarter ended March 31, 2008 and an agreement in,principle ...
... May 15 Indevus,Pharmaceuticals, Inc. (Nasdaq: IDEV ) ... & Renshaw 5th Annual Global Healthcare Conference on,May 19, ... and at the 2008 UBS,Global Generic and Specialty Pharmaceuticals ... time (5:00 a.m. EDT). The presentations will,be web cast ...
... Mass., May 15 Hologic, Inc. (Nasdaq:,HOLX) today ... be,presenting at the Citigroup Investment Research Global Healthcare,Conference ... the Hilton Hotel in New York,NY., Interested ... audio webcast of,Hologic,s investor presentation on Thursday, May ...
Cached Biology Technology:Senetek PLC Reports First Quarter 2008 Financial Results 2Senetek PLC Reports First Quarter 2008 Financial Results 3Indevus Pharmaceuticals Scheduled to Present at Upcoming Investor Conferences 2Indevus Pharmaceuticals Scheduled to Present at Upcoming Investor Conferences 3
Rabbit polyclonal to Factor IX ( Abpromise for all tested applications). entrezGeneID: 2158 SwissProtID: P00740...
Rabbit polyclonal to Phosphothreonine-Proline / Phosphoserine-Proline ( Abpromise for all tested applications)....
Mouse monoclonal [7C6] to Bcr-abl ( Abpromise for all tested applications). SwissProtID: P11274...
Chicken polyclonal to Thioredoxin domain containing 9 ( Abpromise for all tested applications). Antigen: Full length protein (Human) Entrez Gene ID: 10190 Swiss Protein ID: O14530...
Biology Products: