Navigation Links
In the genes, but which ones?
Date:2/24/2012

For decades, scientists have understood that there is a genetic component to intelligence, but a new Harvard study has found both that most of the genes thought to be linked to intelligence are probably not in fact related to it, and identifying intelligence's specific genetic roots may still be a long way off.

Led by David I. Laibson '88, the Robert I. Goldman Professor of Economics, and Christopher F. Chabris '88, PhD '99, Assistant Professor of Psychology at Union College, a team of researchers examined a dozen genes using large data sets that included both intelligence testing and genetic data. As reported in a forthcoming article in the journal Psychological Science, they found that, in nearly every case, the hypothesized genetic pathway failed to replicate. In other words, intelligence could not be linked to the specific genes that were tested.

"It is only in the past 10 or 15 years that we have had the technology for people to do studies that involved picking a particular genetic variant and investigating whether people who score higher on intelligence tests tend to have that genetic variant," said Chabris. "In all of our tests we only found one gene that appeared to be associated with intelligence, and it was a very small effect. This does not mean intelligence does not have a genetic component, it means it's a lot harder to find the particular genes, or the particular genetic variants, that influence the differences in intelligence."

To get at the question of how genes influence intelligence, however, researchers first needed data, and plenty of it.

Though it had long been understood, based on studies of twins, that intelligence was a heritable trait, it wasn't until relatively recently that the technology emerged to allow scientists to directly probe DNA in a search for genes that affected intelligence.

The problem, Chabris said, was that early technology for assaying genes was wildly expensive,
'/>"/>

Contact: Peter Reuell
preuell@fas.harvard.edu
617-496-8070
Harvard University
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. To prevent inbreeding, flowering plants have evolved multiple genes, research reveals
2. From bark to bedside: Study looks at canine cancer genes, human health impact
3. Ability to navigate may be linked to genes, researcher says
4. Hush little baby... Linking genes, brain and behavior in children
5. Large DNA stretches, not single genes, shut off as cells mature
6. Bipolar disorder genes, pathways identified by Indiana University neuroscientists
7. Brainy genes, not brawn, key to success on mussel beach
8. NIHs Genes, Environment and Health Initiative adds 6 studies
9. That which does not kill yeast makes it stronger
10. Which way did it go?
11. VTT identified specific bacteria which precede autoimmune diabetes
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:12/17/2014)... DUBLIN , Dec. 16, 2014 Research ... announced the addition of the "Global Chemical ... http://photos.prnewswire.com/prnh/20130307/600769 ... is the increasing demand for medical sensors in ... patient data for quick and correct diagnosis during ...
(Date:12/11/2014)... 10, 2014  That blood pressure plays a role in ... – the medical term for high blood pressure – was ... the inflatable cuff that,s used in measuring blood pressure was ... nothing new about hypertension, its triggers and its effects. In ... condition and the best ways to treat it. ...
(Date:12/10/2014)... DIEGO , Dec. 9, 2014 CIE ... collaboration catalyst that provides the connective tissue that enhances ... enabling them to easily share client-level information; earned a ... to expand to organizations serving seniors aging in community ... Diego" partner on December 11 th 4-6p. ...
Breaking Biology News(10 mins):Global Chemical Sensor Market 2015-2019: Key Vendors are Abbott Laboratories, Bayer, Hoffmann La-Roche, Johnson & Johnson, NGK Spark Plugs and Robert Bosch 2Research points to need for new approaches to treatment of high blood pressure 2Research points to need for new approaches to treatment of high blood pressure 3Research points to need for new approaches to treatment of high blood pressure 4Community Information Exchange San Diego Launches Pilot, Secures $1 Million Expansion Grant, and Becomes a "Live Well San Diego" Partner 2Community Information Exchange San Diego Launches Pilot, Secures $1 Million Expansion Grant, and Becomes a "Live Well San Diego" Partner 3Community Information Exchange San Diego Launches Pilot, Secures $1 Million Expansion Grant, and Becomes a "Live Well San Diego" Partner 4
... the blood cancer multiple myeloma has revealed that the genetic ... thought. Through results published in Cancer Cell today, ... patient,s tumor can harbor populations of cancer cells equipped with ... in the future. "What this new work shows us ...
... found a way to project future habitat locations ... threatened biodiversity. Associate Professor Grant Wardell-Johnson and ... for Biodiversity and Climate, along with lead researcher ... at Wageningen University in the Netherlands, developed an ...
... sensations, advanced ship design and more, four scientists sponsored ... 23 learned they will receive the nation,s highest honor ... been selected for Presidential Early Career Awards for Scientists ... ceremony at the White House early this year. ...
Cached Biology News:Multiple myeloma study uncovers genetic diversity within tumors 2Multiple myeloma study uncovers genetic diversity within tumors 3Safe havens revealed for biodiversity in a changed climate 2White House lauds ONR-funded researchers for early success 2
(Date:12/19/2014)... MA (PRWEB) December 19, 2014 Charm ... MRLAFMQ test for the Detection of Aflatoxin M1 in ... to receive independent third party validation. The peer reviewed ... Unit of the Institute for Agricultural and Fisheries Research ... Group. , Aflatoxin B1, the most toxic aflatoxin ...
(Date:12/19/2014)... REDWOOD CITY, Calif. , Dec. 19, 2014 ... , USA) announced today that they have been ... Technologies 1,2 is a privately held company that ... processing of next generation sequencing (NGS) data for the ... into the Roche Sequencing Unit, and will continue to ...
(Date:12/19/2014)... Arkansas (PRWEB) December 18, 2014 ... to locate its pilot production facility and future ... develop and produce innovative new materials that safely ... chosen not only because of its historic, strong ... leaders’ efforts to attract leading edge, technology-based companies ...
(Date:12/19/2014)... Boston, MA (PRWEB) December 18, 2014 ... software, announced the appointment of Siri Bryant as the ... the new Director of Core Implementations. These two new ... provide outstanding customer service by ensuring that iLab continues ... , “In the last four years, iLab has been ...
Breaking Biology Technology:Charm Sciences Achieves Independent Validation of First 15 Minute Quantitative Screening Method for Aflatoxin M1 2Bina Technologies is acquired by Roche. 2Bina Technologies is acquired by Roche. 3Technology Company TiFiber™ to Establish Production Facility in Fort Smith, Arkansas with Support from Local Investors 2Technology Company TiFiber™ to Establish Production Facility in Fort Smith, Arkansas with Support from Local Investors 3Technology Company TiFiber™ to Establish Production Facility in Fort Smith, Arkansas with Support from Local Investors 4iLab Solutions Announces Two New Leadership Positions to Meet the Needs of Its Growing Customer Base 2
... 6 Sigma-Aldrich Corporation,(Nasdaq: SIAL ) will be ... Tuesday, May 13th at 10:40 AM Pacific Time in ... broadcast over the,Internet available at http://ir.sigmaaldrich.com . Users ... the webcast on, http://ir.sigmaaldrich.com users will need to ...
... 2.0 expert, to deliver keynote address at launch ... ... 6 Simon Revell, Manager of Enterprise,2.0 Technology Development at ... software can be leveraged to stimulate the advancement of science,and ...
... m2 (8600 Square-Foot) Facility Enabling Further ... Growth and Recruiting of New Staff, ... new 800 m2,(8600 square-foot) facility enabling further growth and recruiting ... the number of employees,by recruiting additional Protein Tomography(TM) analysts, sales,representatives ...
Cached Biology Technology:Hershey Center for Applied Research Supports Acceleration of Scientific Research and Development 2Hershey Center for Applied Research Supports Acceleration of Scientific Research and Development 3Sidec AB Expands Into New Offices 2