Navigation Links
Bat brains offer clues as to how we focus on some sounds and not others
Date:11/14/2010

San Diego - How do you know what to listen to? In the middle of a noisy party, how does a mother suddenly focus on a child's cry, even if it isn't her own?

Bridget Queenan, a doctoral candidate in neuroscience at Georgetown University Medical Center is turning to mustached bats to help her solve this puzzle.

At the annual meeting of the Society for Neuroscience in San Diego, Queenan will report that she has found neurons in the brains of bats that seem to "shush" other neurons when relevant communications sounds come in a process she suggests may be working in humans as well.

In her investigations, she has also found that "some neurons seemed to know to yell louder to report communication sounds over the presence of background noise."

"So we can now start to piece together how the cells in your brain are able to deal with the complex sensory environment we live in," Queenan added.

To understand auditory brain function, bats are especially interesting animals to study because they process sound through echolocation, which is a kind of biological sonar. Bats call out and then listen to their own echoes produced when those calls bounce off nearby objects. Bats use these echoes to navigate and to hunt.

Not only do the brains of bats have to process a constant stream of pulses and echoes, they have to simultaneously process the bats' social communication, Queenan says.

"What we are trying to figure out is how a bat can fly around echolocating - screeching and listening to its own individual sounds bouncing back - amidst a whole colony of hundreds of other echolocating bats and possibly hear another bat saying 'watch out! Bats actually do make these cautious calls quite a bit," she says. "In fact, bats have a whole host of communication sounds: angry sounds, warning sounds, and sounds that says 'please don't hurt me."

The auditory processing area in bats' brains is larger than other cente
'/>"/>

Contact: Karen Mallet
km463@georgetown.edu
215-514-9751
Georgetown University Medical Center
Source:Eurekalert

Page: 1 2

Related biology news :

1. Old and young brains rely on different systems to remember emotional content
2. Rice University psychologist finds womens brains recognize, encode smell of male sexual sweat
3. Our brains make their own marijuana: Were all pot heads deep inside
4. Snakes and how they helped our big brains evolve
5. Monkey brains signal the desire to explore
6. Scientists remove amyloid plaques from brains of live animals with Alzheimers disease
7. Stimulus grant of nearly $9 million to UC San Diego funds big study of young brains
8. Ladder-walking locusts show big brains arent always best
9. Bigger not necessarily better, when it comes to brains
10. New neuroimaging analysis technique identifies impact of Alzheimers disease gene in healthy brains
11. Psychopaths brains wired to seek rewards, no matter the consequences
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:8/12/2015)... YORK , Aug. 12, 2015  New ... hackers can attack Android phones to steal users, ... the increasing availability of fingerprint scanners on mobile ... utmost concern. To secure biometrics on mobile devices, ... to augment these convenient authentication systems with strong ...
(Date:8/6/2015)... Aug. 6, 2015  Today, U.S. Congressman ... Crossmatch ™ to learn firsthand how Silicon Valley ... Crossmatch is a world leader in multi-factor identity ... are helping federal agencies and commercial organizations achieve ... "The vast majority of network breaches ...
(Date:8/5/2015)... VIEW, Calif. , Aug. 5, 2015 ... exhibits continuous growth in applications, penetration into newer sectors, ... after year. The global biosensors space has seen the ... exited the market so far. (Photo - ... Frost & Sullivan, Analysis of the Global Biosensors ...
Breaking Biology News(10 mins):HYPR Corp. Addresses Android Vulnerability That Exposes Ecosystem-wide Biometric Security Challenges 2HYPR Corp. Addresses Android Vulnerability That Exposes Ecosystem-wide Biometric Security Challenges 3Rep. Honda to Visit Crossmatch in Redwood City 2Innovative Biosensors Incite Use in Non-Traditional Applications 2Innovative Biosensors Incite Use in Non-Traditional Applications 3Innovative Biosensors Incite Use in Non-Traditional Applications 4
... the president of Conservation International and a global leader ... Medal from the Harvard Museum of Natural History. ... who has written more than 500 scientific and popular ... has described 11 species new to science, had seven ...
... Scientists at UC Santa Barbara have made a significant discovery ... They explain nature,s way of controlling whether these cells will ... a liver, or any other part of the human body. ... the journal Cell . The scientists say the ...
... a successful second funding period, the first three DFG ... for another four years. This decision was made by ... Research Foundation) at its spring session in Bonn. As ... in the Earth System" in Bremen, "The Center for ...
Cached Biology News:Scientists shed light on inner workings of human embryonic stem cells 2Scientists shed light on inner workings of human embryonic stem cells 3The first DFG research centers to be funded for another four years 2The first DFG research centers to be funded for another four years 3The first DFG research centers to be funded for another four years 4
(Date:8/26/2015)... and BEIJING , August 26, 2015 ... Impressive Acheivements  DiaCardio wins 1 st place  ... The competition, led in Israel by venture ... startups from countries including the US, China , ... Latin America .  Impressive achievement for ...
(Date:8/26/2015)... England , August 26, 2015 ... Ltd against Europlasma NV relating to P2i United ... have resolved their dispute in the United States ... liability on the part of either party. As a result ... Central District of California dismissed the ...
(Date:8/26/2015)... CA. (PRWEB) , ... August 26, 2015 , ... ... conferences to develop new business relationships with local sponsors in southern California. The Clinical ... facilitate their drug development processes and regulatory pathways., , ...
(Date:8/25/2015)... , Aug. 25, 2015   WuXi PharmaTech ... R&D capability and technology platform company serving the pharmaceutical, ... Ltd. ("Lee,s Pharm," Hong Kong Exchange Stock Code: 0950), ... Kong with 20 years of operations in ... two companies have signed an agreement whereby WuXi,s Laboratory ...
Breaking Biology Technology:Israeli Startup Takes First Place at Shengjing Global Innovation Awards 2015 2Israeli Startup Takes First Place at Shengjing Global Innovation Awards 2015 3Israeli Startup Takes First Place at Shengjing Global Innovation Awards 2015 4Israeli Startup Takes First Place at Shengjing Global Innovation Awards 2015 5Israeli Startup Takes First Place at Shengjing Global Innovation Awards 2015 6P2i Settles United States Litigation 2PRC Clinical To Attend Major Industry Conferences And Meet Sponsor Companies In The San Diego Biotech Hub 2PRC Clinical To Attend Major Industry Conferences And Meet Sponsor Companies In The San Diego Biotech Hub 3WuXi PharmaTech to Be Exclusive Supplier of Laboratory Testing Services to Lee's Pharm 2WuXi PharmaTech to Be Exclusive Supplier of Laboratory Testing Services to Lee's Pharm 3
... - The technological march has added so much complexity ... its promised benefits. , ,That according to John Swainson, ... delivered the opening keynote address at the 2007 ... to help bridge the relationship between business and information ...
... Wis. - The prospect of e-discovery and the possibility - ... any chief executive reach for antacids, but if the CEO's top ... of heartburn can be avoided. , ,That was the message of ... Best & Friedrich , who told a Fusion 2007 gathering that ...
... deal that will bring asset-tracking solutions to healthcare and ... a joint sales and marketing agreement with PanGo ... systems, technology, and services to buildings - including more ... the agreement will expand its wireless capabilities and provide ...
Cached Biology Technology:Fusion 2007: CA chief says IT complexity raises risk 2Fusion 2007: CA chief says IT complexity raises risk 3Fusion 2007: In e-legalities, CIOs and lawyers combine to provide business value 2Fusion 2007: In e-legalities, CIOs and lawyers combine to provide business value 3
... is a 96-well ELISA-compatible plate (containing 12 x ... Monoclonal Antibody is immobilized by a method that ... the tail fiber protein of the T7 bacteriophage. ... 10 9 phage per well and low ...
... Telomerase Detection Kit is a ... for the fluorometric detection and ... activity. It incorporates refinements to ... adds the ability to quantitate ...
... The expertise that made the original Gene Pulser ... system available has been applied in the Gene ... The modular design of the Gene Pulser II ... accessory that has the widest range of settings ...
Caliper offers a wide array of standard LabChip products designed to be used in combination with our AMS 90 and LabChip 3000 microfluidic platforms....
Biology Products: