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:11/5/2014)... Fidel Santamaria, associate professor of biology in the ... researchers in the nation selected to receive a ... Grant for Exploratory Research (EAGER). The funding supports ... support researchers to create new technology that will ... Santamaria, complex behaviors in neuroscience are broken into ...
(Date:11/4/2014)... right amount of death at the right time might ... new research that could help in understanding animal populations, ... In a paper in the journal Trends in ... European colleagues conclude that the kind of positive population ... individuals, or mortality, depends on the size and developmental ...
(Date:11/4/2014)... , November 4, 2014   ... market growth   Fuel3D , a developer ... a funding round totaling $6.4 million (£4 million). This funding ... secured earlier this year and paves the way for the ... The funding round was led by Chimera Partners ...
Breaking Biology News(10 mins):UTSA biology professor awarded $300,000 NSF grant for brain research 2UTSA biology professor awarded $300,000 NSF grant for brain research 3When less is more: Death in moderation boosts population density in nature 2Fuel3D Secures $6.4 Million in Expansion Funding 2Fuel3D Secures $6.4 Million in Expansion Funding 3
... PHOENIX, Ariz. Feb. 5, 2010 The Translational ... a strategic alliance and affiliation agreement with the Van ... capabilities of both non-profit institutes. TGen expects ... aimed at developing new tests and treatments for patient ...
... study of children in Ukraine has found that for ... care and the relationship between children and their caregivers ... their findings, the researchers highlight the importance of comprehensive ... changing caregivers, working schedules and providing training to enhance ...
... Mich. In an effort to eliminate the tropical ... researcher has been awarded $2 million to reformulate an ... their tracks. Charles Mackenzie, a professor of veterinary ... the funding via a larger $13 million grant the ...
Cached Biology News:TGen finalizes alliance with Van Andel Research Institute 2TGen finalizes alliance with Van Andel Research Institute 3For HIV-infected children, quality of caregiver relationship is crucial 2MSU researcher awarded $2 million to tackle parasitic tropical diseases 2
(Date:11/23/2014)... Francis, WI (PRWEB) November 23, 2014 ... manufacturer and supplier of fine chemical ingredients to ... announced the launch of its new website, Apiscent.com. ... description of Apiscent Labs, clean design, easy navigation, ... that make Apiscent Labs stand out. ...
(Date:11/22/2014)... Prominent academics, leaders of the biopharmaceutical ... 3rd at Genetic Rx, a networking conference of ... place at the Joseph B. Martin Conference Center ... present and future of genetic medicines—including siRNA, ASOs, ... well as the treatment of patients with rare ...
(Date:11/22/2014)... Chicago, IL (PRWEB) November 21, 2014 ... technology competitors at the 2014 Emerging Medical Technologies Summit ... MedTech Innovator Awards. Widely regarded among Silicon Valley ... emerging medical device innovation, the win also positions Briteseed ... the MedTech Innovator competition in 2015 and compete with ...
(Date:11/22/2014)... , Nov. 21, 2014  The element of surprise ... diseases, i.e., they strike without warning. Until now, epidemiologists ... of a viral outbreak, resulting in suboptimal responses to ... currently. Photo - http://photos.prnewswire.com/prnh/20141121/160242 ... now been removed because virus gene structural changes have ...
Breaking Biology Technology:Pioneering Academics and Key Industry Leaders to Discuss Rare Diseases and the Emergence of New Genetic Medicines at Genetic Rx on December 3rd 2Insight Product Development Accelerator Member Wins MedTech Innovator Award Competition 2Insight Product Development Accelerator Member Wins MedTech Innovator Award Competition 3Viruses' Advantage of Surprise is Lost 2
... Presentation Scheduled for Monday, March 17th at 11:30am ET, ... KERX ) today announced that I. Craig Henderson, ... Vice President,Medical Affairs, are scheduled to present at the ... The presentation, which will take place on Monday, ...
... Phase 2 Clinical Trial in ... ... today financial results for the year ended December,31, 2007, and highlighted the ... ), During 2007, the Company achieved the following corporate milestones:, ...
... for ... cars, phones, computers, ARGONNE, Ill., ... Laboratory and Toda Kogyo Corp. (Toda) of Japan have,reached a ... patented composite cathode materials for lithium-ion,batteries, which result in longer-lasting, ...
Cached Biology Technology:Keryx Biopharmaceuticals to Present at the Cowen and Company 28th Annual Health Care Conference 2Nventa Biopharmaceuticals Reports Full Year 2007 and Fourth Quarter Financial Results 2Nventa Biopharmaceuticals Reports Full Year 2007 and Fourth Quarter Financial Results 3Nventa Biopharmaceuticals Reports Full Year 2007 and Fourth Quarter Financial Results 4Nventa Biopharmaceuticals Reports Full Year 2007 and Fourth Quarter Financial Results 5Nventa Biopharmaceuticals Reports Full Year 2007 and Fourth Quarter Financial Results 6Nventa Biopharmaceuticals Reports Full Year 2007 and Fourth Quarter Financial Results 7Argonne's Lithium-Ion Battery Technology to be Commercialized by Japan's Toda Kogyo 2Argonne's Lithium-Ion Battery Technology to be Commercialized by Japan's Toda Kogyo 3
... System, Professional Package Superior Protein Detection ... The ProXPRESS 2D Proteomic Imaging System is ... both proteomic and general life science research ... the use of all dyes in the ...
... single use spatulas have been designed to ... are for those interested in eliminating the ... Each spatula is individually packaged, RNase/DNase free, ... is a new product number, created to ...
... digital valve, just 8 mm in width. ... in a single glass-reinforced, PBT (Polybutylene Terephthalate) molded ... width. , Meets a range of pressure requirements ... Satisfies a 0.016 sccm leakage specification (0.2 sccm ...
... versatile system that simultaneously harvests and washes ... into a solid filter supports for analysis ... counter. The FilterMate is ideal for the ... cell proliferation, receptor binding, nucleic acid degradation, ...
Biology Products: