Navigation Links
Study gives more proof that intelligence is largely inherited
Date:3/17/2009

They say a picture tells a thousand stories, but can it also tell how smart you are? Actually, say UCLA researchers, it can.

In a study published in the Journal of Neuroscience Feb. 18, UCLA neurology professor Paul Thompson and colleagues used a new type of brain-imaging scanner to show that intelligence is strongly influenced by the quality of the brain's axons, or wiring that sends signals throughout the brain. The faster the signaling, the faster the brain processes information. And since the integrity of the brain's wiring is influenced by genes, the genes we inherit play a far greater role in intelligence than was previously thought.

Genes appear to influence intelligence by determining how well nerve axons are encased in myelin the fatty sheath of "insulation" that coats our axons and allows for fast signaling bursts in our brains. The thicker the myelin, the faster the nerve impulses.

Thompson and his colleagues scanned the brains of 23 sets of identical twins and 23 sets of fraternal twins. Since identical twins share the same genes while fraternal twins share about half their genes, the researchers were able to compare each group to show that myelin integrity was determined genetically in many parts of the brain that are key for intelligence. These include the parietal lobes, which are responsible for spatial reasoning, visual processing and logic, and the corpus callosum, which pulls together information from both sides of the body.

The researchers used a faster version of a type of scanner called a HARDI (high-angular resolution diffusion imaging) think of an MRI machine on steroids that takes scans of the brain at a much higher resolution than a standard MRI. While an MRI scan shows the volume of different tissues in the brain by measuring the amount of water present, HARDI tracks how water diffuses through the brain's white matter a way to measure the quality of its myelin.

"HARD
'/>"/>

Contact: Mark Wheeler
mwheeler@mednet.ucla.edu
310-794-2265
University of California - Los Angeles
Source:Eurekalert

Page: 1 2

Related medicine news :

1. MRSA study suggests strategy shift needed to develop effective therapeutics
2. Study tracks increasing use of CT on pregnant women
3. First sister study results reinforce the importance of healthy living
4. Tens of Thousands of Back Pain Patients Overtreated in Six Health Plans, According to HealthCore Study
5. Study Finds that Dying Patients and Families Suffer from Lack of Continuity of Physician Care
6. New Clinical Study Finds Masimo Rainbow SET(R) Pulse CO-Oximetry(TM) Accurate in the Noninvasive Monitoring of Fluid Status During Surgery
7. Firefighters Have Narrower-Than-Normal Arteries, Study Finds
8. Drugs Before Stents for Stable Heart Disease, Study Says
9. New Study Shows Probiotic Strain Effective in Boosting Immune Response
10. Studying the female form
11. Aspirin improves survival in women with stable heart disease, according to WHI study
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:9/3/2015)... ... September 03, 2015 , ... The new ... Report of Provo, Utah. The Clinicians Report is a leading information source to ... located throughout the U.S. Whiter Image's In-Office whitening kits were favorably validated for ...
(Date:9/3/2015)... ... ... Local filmmakers and now co-hosts of the up and coming podcast Path11 ... had great success in launching their Path11 Podcast with 23 episodes released since April ... is the well known Spiritual Catalyst and Linda Howe, leader in the field of ...
(Date:9/3/2015)... ... September 03, 2015 , ... The partnership ... customer and technical support services to promote LodonalTM in Nigeria. The distribution will ... the efficacy and safety of the product. , Managing Director, Fidson Healthcare Plc, ...
(Date:9/2/2015)... ... ... One can hardly argue against the fact that more and more people are using ... are being used as GPS, to make purchases, and yes, even to find a ... can now join the prestigious social ranks of e-dating. , Recently, Mr. Josh ...
(Date:9/2/2015)... Poulsbo, WA (PRWEB) , ... September 02, 2015 , ... ... store, open September 2015. “It was a simple decision, really,” says Chris. “We have ... shop here. They know the brands that work best for them—so we’ve given them ...
Breaking Medicine News(10 mins):Health News:Whiter Image Products Get Positive Rating From The Clinicians Report 2Health News:Path 11 Podcast Now Features over 20 Metaphysical Discussions on iTunes and Growing 2Health News:Path 11 Podcast Now Features over 20 Metaphysical Discussions on iTunes and Growing 3Health News:Fidson Partners US Firms on New Product Marketing 2Health News:Fidson Partners US Firms on New Product Marketing 3Health News:Fidson Partners US Firms on New Product Marketing 4Health News:Herpes-datingsites.com Recently Added Reviews of 5 STD Dating Apps for STD Positive Singles 2Health News:Harrison's Comfort Footwear Announces Expansion with New CHarrison Online Store 2
... are worried, as the floodplains of the Yamuna river are ... and even hotels for the 2010 Commonwealth Games. ... danger for the city's water security, they warn. ... weekend at Rajghat in New Delhi. It is being organized ...
... Taser to control agitated suspects in police custody is ... In some circles, however, the idea that using a ... controversy. ,Now, the final results of a ... of California, San Diego (UCSD) Medical Center showed no ...
... on black silk. The imagery is powerful and the prospect ... have turned to cocaine in a big way, throwing ... for instance, once hailed as a brilliant advocate, is ... naked and unconscious last Friday in a hotel room by ...
... positive effect on someones physical health? This question is ... of the latest Medical Journal of Australia. ... and spirituality in health, its relevance to Australian practitioners ... practice, and the current gaps where more research is ...
... hydropower projects being clean, a new scientific study has ... for at least 19 percent of India's global ... study, Indian dams are larger methane emitters and total ... around 33.5 million tonnes (MT) per annum, including emissions ...
... in the mouth like a popular breath-freshener could someday ... The innovative drug-delivery system was developed by Johns ... two-semester course, the seven-student team fabricated a thin film ... the child to swallow the vaccine. The dissolved medication ...
Cached Medicine News:Health News:Green Campaigners Concerned About Yamuna's Shrinking Floodplains 2Health News:Healthy Humans Not Harmed By Taser 2Health News:Australia Agonising Over the Problem of Cocaine Use by Lawyers 2Health News:Australia Agonising Over the Problem of Cocaine Use by Lawyers 3Health News:Students Devise Oral Quick-dissolve Strips for Rotavirus Vaccine 2Health News:Students Devise Oral Quick-dissolve Strips for Rotavirus Vaccine 3
(Date:9/2/2015)... , Sept. 2, 2015  Array BioPharma Inc. ... Chief Executive Officer, Ron Squarer , will ... in Boston.  The public is welcome to participate ... Array BioPharma website.Event: Wells Fargo Securities Healthcare ConferencePresenter: ... 10, 2015Time:  , 10:20 a.m. Eastern Time Webcast: ...
(Date:9/2/2015)... , Sept. 2, 2015 ... revenue base with highly profitable specialty products ... Near-term growth potential with 11 product applications pending ... IV certifications  , Provides medium and longer ... development, including eight controlled substances , Adds ...
(Date:9/2/2015)... Sept. 2, 2015 Research and Markets ( http://www.researchandmarkets.com/research/l8z67c/pharmaceutical ... Affairs in China (Basel, Switzerland - November 26-27, 2015)" ... provide a detailed overview of the key areas of pharmaceutical ... Hong Kong , Macau and ... - All important aspects of gaining and maintaining a ...
Breaking Medicine Technology:Lannett To Acquire Kremers Urban Pharmaceuticals For $1.23 Billion 2Lannett To Acquire Kremers Urban Pharmaceuticals For $1.23 Billion 3Lannett To Acquire Kremers Urban Pharmaceuticals For $1.23 Billion 4Lannett To Acquire Kremers Urban Pharmaceuticals For $1.23 Billion 5Lannett To Acquire Kremers Urban Pharmaceuticals For $1.23 Billion 6Pharmaceutical Regulatory Affairs in China Seminar: Basel, Switzerland - November 26-27, 2015 2
... today announced the,publication of the results from a ... cruciate ligament (ACL) reconstruction,surgery. OMS103HP is an investigational ... and is designed to improve postoperative,knee function and ... return to work. The article titled "Novel Drug ...
... PHILADELPHIA, Aug. 25 Scientists have,discovered gene mutations ... the childhood cancer neuroblastoma. In addition, the researchers found,that ... forms of,non-inherited neuroblastoma, the more common form of the ... first genetic tests to families,affected by the inherited form ...
Cached Medicine Technology:Omeros Announces Publication of Clinical Results for OMS103HP in Arthroscopy: The Journal of Arthroscopic and Related Surgery 2Gene That Causes Childhood Cancer Neuroblastoma Is Found 2Gene That Causes Childhood Cancer Neuroblastoma Is Found 3Gene That Causes Childhood Cancer Neuroblastoma Is Found 4
The Perfecta PDA components provide the design and material choice imperative in today's cost conscious medical climate....
Cementless hip stem revisions offering optimal version setting for each patient. Compatible with modular link ceramic or cobalt chromium femoral heads with up to 4 neck lengths, or the link saddle de...
The proximally modular S-ROM Total Hip System provides custom capability at non-custom prices and is competitive with conventional porous coated systems....
The proximally modular S-ROM Total Hip System provides custom capability at non-custom prices and is competitive with conventional porous coated systems....
Medicine Products: