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:7/11/2014)... group members to reduce aggression and gain access to ... grooming activities shows a certain pattern across the day. ... Biology Letters . , Grooming between individuals in ... motives. To be groomed has hygienic benefits and is ... can provide access to infants, mating opportunities and high ...
(Date:7/11/2014)... University, Sweden, have explored two different ways that ... leading to the formation of oxygen molecules in ... the scientific journal Nature Communications . , ... synthetic catalysts for water oxidation, which are key ... direct storage of solar energy in fuels like ...
(Date:7/11/2014)... increased risk of kidney injury related to the use ... mass of HES molecules, according to a report in ... International Anesthesia Research Society (IARS). , The "total mass ... on cultured human renal proximal tubule cells (PTCs), concludes ... of University Hospital Wrzburg, Austria. Other factorssuch as ...
Breaking Biology News(10 mins):Baboons groom early in the day to get benefits later 2Molecular snapshots of oxygen formation in photosynthesis 2In lab studies, hydroxyethyl starch has direct harmful effects on kidney cells 2
... of Illinois at Chicago College of Pharmacy are ... an antipsychotic medication works in adults and children ... Risperidone, a popular "atypical" antipsychotic medication, is used ... bipolar disorder. , Jeffrey Bishop, assistant professor ...
... molecular mechanism underlying the hyperactive high of cocaine. In ... interactions between two types of receiving stations in neurons ... in rats found that when the animals received cocaine, ... tends to grab onto a component of a receptor ...
... demand, Montana State University entomologists are investigating ways ... the entomologists are concluding a two-year study that ... sawfly larvae that tunnel the interior of developing ... master's graduate Godshen Pallipparambil-Robert and undergraduate Melissa Frazier ...
Cached Biology News:Studies look at how genes affect antipsychotic drug response 2Cocaine high caused by interference in neuronal receiving stations 2Rearing an army to save wheat 2Rearing an army to save wheat 3
(Date:7/11/2014)... /CNW/ - Sunovion Pharmaceuticals Canada Inc. (Sunovion) today announced ... for use as a once-daily adjunctive therapy for the ... are not satisfactorily controlled with conventional therapy.  APTIOM TM ... 18 years of age. Epilepsy is ... to Epilepsy Canada, it affects 0.6% of the population ...
(Date:7/10/2014)... (PRWEB) July 10, 2014 Women ... have access to an additional family planning option. ... to contraception at all levels of the health ... formulation of a widely used contraceptive—Pfizer’s Depo-Provera® (depot ... Burkina Faso is the first of four African ...
(Date:7/10/2014)... Cleveland, Ohio (PRWEB) July 10, 2014 ... in ion channel-expressing cell lines, and the gap that ... new cells that expand its industry-leading portfolio of validated ... focuses on ion channel-expressing cell lines, as ion channels ... able to control this activity creates the potential to ...
(Date:7/10/2014)... July 10, 2014 Robert Harman, DVM, Founder ... company, is proud to announce the relaunch of his highly ... a new series called “ What are Stem Cells ?” ... honest and straightforward foundation in the basics of stem cell ... on the right type of treatment when considering regenerative medicine. ...
Breaking Biology Technology:Sunovion Pharmaceuticals Canada Inc. Announces Health Canada Approval of APTIOM(TM) (eslicarbazepine acetate) as a Once-Daily Adjunctive Treatment for Partial-Onset Seizures in Patients with Epilepsy 2Sunovion Pharmaceuticals Canada Inc. Announces Health Canada Approval of APTIOM(TM) (eslicarbazepine acetate) as a Once-Daily Adjunctive Treatment for Partial-Onset Seizures in Patients with Epilepsy 3Sunovion Pharmaceuticals Canada Inc. Announces Health Canada Approval of APTIOM(TM) (eslicarbazepine acetate) as a Once-Daily Adjunctive Treatment for Partial-Onset Seizures in Patients with Epilepsy 4Injectable Contraceptive Launched in Burkina Faso to Expand Choice and Address Unmet Need 2Injectable Contraceptive Launched in Burkina Faso to Expand Choice and Address Unmet Need 3Injectable Contraceptive Launched in Burkina Faso to Expand Choice and Address Unmet Need 4Injectable Contraceptive Launched in Burkina Faso to Expand Choice and Address Unmet Need 5Injectable Contraceptive Launched in Burkina Faso to Expand Choice and Address Unmet Need 6Leader in Ion Channel Research Announces Newly Validated and Re-Engineered Cells 2Leader in Ion Channel Research Announces Newly Validated and Re-Engineered Cells 3Robert Harman, DVM Talks About What Stem Cells are in His Latest Blog Series for Vet-Stem, Inc. 2Robert Harman, DVM Talks About What Stem Cells are in His Latest Blog Series for Vet-Stem, Inc. 3
... 31 BioCryst,Pharmaceuticals, Inc. (Nasdaq: BCRX ) ... NewsMakers in the Biotech Industry conference in New,York. ... Thursday, September,6, 2007 at 2:00 p.m. Eastern Time ... . The presentation will be archived for seven ...
... FREMONT, Calif., Aug. 30 ARYx Therapeutics, Inc.,announced today ... S-1 with,the Securities and Exchange Commission for a proposed ... of the shares in the proposed,offering will be sold ... will be Morgan Stanley & Co.,Incorporated acting as sole ...
... (Nasdaq: VRNM ), a leading developer of cellulosic ... specialty,enzymes, announced today that Carlos A. Riva, President and ... Cowen and Company Clean,Energy Conference. The presentation is scheduled ... 2007 and will take place at Le Parker Meridien ...
Cached Biology Technology:BioCryst to Present at the BioCentury NewsMakers in the Biotech Industry Conference 2BioCryst to Present at the BioCentury NewsMakers in the Biotech Industry Conference 3ARYx Therapeutics, Inc. Files Registration Statement for Initial Public Offering 2Verenium Corporation to Present at the Upcoming Cowen and Company Clean Energy Conference 2Verenium Corporation to Present at the Upcoming Cowen and Company Clean Energy Conference 3
... data collection and automation that is controlled from ... Excel , Pre-configured library of interfaces for ... can be added and configured by the user ... into one spreadsheet , Allows for ...
...
Peptide-affinity Purified Polyclonal Antibody to MAML1 / Mastermind Peptide with sequence VLPTCPMAEFALPR, from N Terminus of the protein sequence according to NP_055572....
One unit is equal to 10Kb (insert DNA + vector). The final cost will increase or decrease according to the final assembled genome size. The price does not include genome annotation....
Biology Products: