Navigation Links
Size matters: Length of songbirds’ playlists linked to brain region proportions
Date:9/18/2011

Call a bird "birdbrained" and they may call "fowl." Cornell University researchers have proven that the capacity for learning in birds is not linked to overall brain size, but to the relative size and proportion of their specific brain regions.

Songbirds with upper brain regions that are larger in relation to lower regions have a greater capacity for learning songs. Higher brain areas control the majority of cognitive and learning functions, while lower brain areas control more motor functions, according to the new study published in the Proceedings of the National Academy of Sciences.

The research shows that when a bird's higher cortex-like brain area called the high vocal center (HVC) is larger relative to the lower brain area called RA, or if the RA is large relative to an even lower area called N12, the species is able to learn dozens of different notes. Such species as mockingbirds, catbirds, European blackbirds and European warblers can learn hundreds of notes because they have those relative size differences in both sets of areas.

"HVC size by itself only modestly predicts capacity for song learning, but relative size is a very strong predictor," said Tim DeVoogd, professor of psychology and of neurobiology and behavior and the paper's senior author. Jordan Moore, a graduate student in DeVoogd's lab, was the paper's lead author. "Our work is the first to demonstrate a basic principle of evolution using a specific behavior having greater cortical control of brain function gives greater behavioral flexibility, including enhanced learning."

In bird species with great capacities for song learning, higher brain areas likely became built up over lower areas as a result of sexual selection, he said, where females mated with males that had more elaborate songs. Repeated over millions of generations, the structure of the brains of these species changed such that higher brain areas became larger relative to lower areas.<
'/>"/>

Contact: Syl Kacapyr
vpk6@cornell.edu
607-255-7701
Cornell University
Source:Eurekalert

Page: 1 2

Related biology news :

1. Size matters: Smaller particles could make solar panels more efficient
2. Distribution is what matters: How body fat influences the risk of diabetes
3. Size matters: Eavesdropping on sexual signals
4. Research links telomere length to emphysema risk
5. Plant growth rate, stem length unaffected by rice hull, peat substrate
6. Unique gene combinations control tropical maize response to day lengths
7. Effect of cloud-scattered sunlight on earths energy balance depends on wavelength of light
8. Planetary exploration robots to be featured on science program WaveLengths
9. Ovarian transplantation restores fertility to old mice and also lengthens their lives
10. Lengthening time a drug remains bound to a target may lead to improving diagnostics, therapy
11. Texas Childrens Cancer Center first in Texas to magnetically lengthen nine-year-olds leg as she grows
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:3/23/2015)... , March 23, 2015  In the 2014 fiscal ... case conviction losses. This figure accounts for a fraction ... to The Nilson Report, exceeds $11 billion globally. The ... after a crime has occurred. Investor Mark Saint ... expert Joe Paolella partnered to administer the ...
(Date:3/20/2015)... -- NXT-ID, Inc. (NASDAQ: NXTD ) ("NXT-ID" or ... growing mobile commerce market, announces its biometric payment technology, ... featured in 2015 "I Want That" International CES Special, ... the DIY Network.   DIY,s "I Want ... site of the 2015 International CES for a firsthand ...
(Date:3/17/2015)... , March 17, 2015 ... company specializing in clinical study management systems, is ... in attendance at ARENA,s Outsourcing in Clinical Trials ... This event provides an excellent forum for MedNet ... flexible and affordable software-as-a-service (SaaS) eClinical technology platform. ...
Breaking Biology News(10 mins):Polygraph Test Now Used to Protect Investors From Fraud 2Polygraph Test Now Used to Protect Investors From Fraud 3NXT-ID's Wocket Biometric Smart Wallet to Air on "I Want That" International CES Special 2NXT-ID's Wocket Biometric Smart Wallet to Air on "I Want That" International CES Special 3Connect With MedNet Solutions At Outsourcing In Clinical Trials Southeast 2
... PITTSBURGHCarnegie Mellon University,s John Kitchin was awarded $750,000 ... of Energy for developing new materials for producing ... was elated to hear that my research had been ... professor in Chemical Engineering at Carnegie Mellon. "This ...
... distinctive red soils could play a part in the formation ... off east coast beaches in summer., A QUT team of ... gives our iron-rich soil its red colour, reaches water to ... a foul smell, but also make our eyes sting, cause ...
... This release is available in German . ... decreased over recent decades. In fact, the number of beekeepers has ... the result of a study that has now been published by ... provided an overview of the problem of bee colony decline at ...
Cached Biology News:Carnegie Mellon's John Kitchin receives early career award 2Is iron from soil a factor in algal blooms? 2Fewer honey bee colonies and beekeepers throughout Europe 2Fewer honey bee colonies and beekeepers throughout Europe 3
(Date:4/24/2015)... , April 24, 2015  Navitas Life Sciences is ... as Head of Clinical and Regulatory Services. Shalabh is a ... a co-founder and CEO of Kinapse, as well as a ... Logo - http://photos.prnewswire.com/prnh/20150423/201261LOGO ... Tizzard commented "I am delighted to welcome Shalabh into ...
(Date:4/23/2015)... 2015 The Thomas Brain Health ... a groundbreaking pilot study to see if early ... as little as three to six months. , ... nutritional medicine—will aggressively target and simultaneously treat the ... aging brain. These include oxidative stress, neuroinflammation, mitochondrial ...
(Date:4/23/2015)... , April 23, 2015 WuXi PharmaTech (Cayman) ... capability and technology platform company serving the pharmaceutical, biotechnology ... China and the United States ... results for the first quarter of 2015 after the ... 2015 (which will be Thursday morning, May 14, 2015 ...
(Date:4/23/2015)... Glemser Technologies is ... Enterprise Content Division (ECD) Certified Solution Partner to ... for Life Sciences Solution Suite . The accreditation ... to provide life sciences companies of all sizes ... EMC Documentum Solution Suite offers four modules: Quality ...
Breaking Biology Technology:Shalabh Kumar Joins Navitas Life Sciences to Lead their Clinical and Regulatory Services Teams 2New Study Looks to Reverse Alzheimer’s Disease 2New Study Looks to Reverse Alzheimer’s Disease 3WuXi PharmaTech Schedules First-Quarter 2015 Earnings Release 2WuXi PharmaTech Schedules First-Quarter 2015 Earnings Release 3Glemser Earns Accreditation for Life Sciences Solution Suite 2
... 3SBio Inc.,(Nasdaq: SSRX ) ("3SBio" or ... focused on researching, developing, manufacturing and,marketing biopharmaceutical ... board of directors has approved a share ... 3SBio to purchase up to US$20 million ...
... Genomas(R), a,biomedical company advancing DNA-guided medicine and ... Phase I-II Small,Business Innovation Research (SBIR) Grant totaling ... Statin Safety and Efficacy," was,awarded by the National ... are the most prescribed drugs in the world. ...
... to Attend April Meeting,in St. Louis, DANBURY, ... (SBS) today announced its outstanding roster of,keynote speakers ... be held,April 6-10 at America,s Center in St. ... and biotech industries from around the world are,expected ...
Cached Biology Technology:3SBio Inc. Approves Share Repurchase Program 2Genomas Awarded $1.2 Million NIH SBIR Grant to Develop DNA-Guided System for Management of Statin Therapy 2Society for Biomolecular Sciences Announces 2008 Conference Speaker Line-up 2
ma. plate stack height 70mm...
Buckets for tube holder inserts...
...
... MBS Start up kit. Includes configured Laptop ... of 2 MultiBlock satellite thermal cyclers ... User friendly software. Store/track run ... heated lid. Outstanding uniformity. Advanced ...
Biology Products: