Navigation Links
Salk scientists discover previously unknown requirement for brain development
Date:6/21/2013

LGN routes the signals into the primary visual area (V1) in the neo-cortex, a multi-layered structure that is divided into functionally and anatomically distinct areas. V1 begins the process of extracting visual information, which is further carried out by "higher order" visual areas in the neo-cortex that are vitally important to visual perception. Like parts in a machine, the functions of these areas are both individual and integrated. Damage in one tiny area can lead to strange visual disorders in which a person may be able to see a moving ball, and yet not perceive it is in motion.

Current dogma holds that this basic architecture is entirely genetically determined, with environmental input only playing a role later in development. One of the most famous examples of this idea is the Nobel Prize-winning work of visual neuroscientists David Hubel and Torsten Wiesel, which showed that there is a "critical period" of sensitivity in vision. Their finding was commonly interpreted as a warning that without exposure to basic visual stimuli early in life, even an individual with a healthy brain will be unable to see correctly.

Later discoveries in neural plasticity more optimistically suggested that early deprivation can be overcome, and the brain can even sprout new neurons in specific areas. Nevertheless, this still reinforced the idea that environmental influences might modify neural architecture, but only genetics could establish how cortical areas would be laid out.

In their new study, however, O'Leary and the paper's co-first authors, Shen-Ju Chou and Zoila Babot, post-doctoral researchers in O'Leary's laboratory, show that genetics only provides a broad field in the neo-cortex for visual areas.

When they created mouse mutants that disconnected the link between thalamus and cortex but only after early cortical development was complete, they found that the primary and higher order visual areas failed to differentiate from one anot
'/>"/>

Contact: Kat Kearney
kkearney@salk.edu
619-296-8455
Salk Institute
Source:Eurekalert

Page: 1 2 3

Related medicine news :

1. Scientists catch EGFR passing a crucial message to cancer-promoting protein
2. Scientists at UMass Medical School identify neurons that control feeding behavior in Drosophila
3. Scientists ID Gene Behind Early Onset Puberty
4. NIH scientists discover how HIV kills immune cells
5. Scientists find potential new clues for identifying breast cancer risk
6. PolyU Scientists Help Identify Genes Causing Myopia
7. Scientists Gauge Radiation Dose From Trip to Mars
8. Scientists Spot Genes Tied to Success at School, College
9. German and Israeli scientists gain new insights into protein disposal
10. Scientists Cant Replicate Surprising Finding on Alzheimers Treatment
11. Scientists discover how rapamycin slows cell growth
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/23/2014)... Lake Worth, FL (PRWEB) July 23, 2014 ... will take place Aug. 10-16, Millennium Treatment Group is ... Substance abuse has existed in society ever since man ... make wine. Substance abuse treatment has existed since shortly ... of recognizing a problem and then developing a way ...
(Date:7/23/2014)... Steven Reinberg HealthDay Reporter ... Many obese and overweight American children and teens look ... fine, U.S. health officials reported Wednesday. "Being overweight ... as high blood pressure, high cholesterol and diabetes," said ... U.S. Centers for Disease Control and Prevention,s National Center ...
(Date:7/23/2014)... 2014 Inventor and entrepreneur Delegate Joe ... to the gas pump – sharing his passion for ... 30 at Noon. , With 24 patents granted and ... than anyone in the General Assembly since Thomas Jefferson. ... yard marker as seen on television, an instrument for ...
(Date:7/23/2014)... WHAT: The National Institute of Biomedical Imaging and ... Investigator Symposium on July 30, 2014 on the NIH ... new investigators covering a wide breadth of NIBIB-funded research. ... Adam Cohen, Harvard, Engineering Microbial Rhodopsins as Optical Voltage ... Testing Fluorescently Labeled Probes for Nerve ...
(Date:7/23/2014)... (PRWEB) July 23, 2014 Bodybuilding.com, the ... online retailer of nutritional supplements, has officially opened the ... BPI SPORTS , the fastest growing sports nutrition company, ... , Brand of the Year, Best Tasting Protein of ... Protein Powder of the year - Whey-HD™, Pre-workout Supplement ...
Breaking Medicine News(10 mins):Health News:Millennium Treatment Group Offers Tips on Choosing a Reputable Treatment Center 2Health News:Millennium Treatment Group Offers Tips on Choosing a Reputable Treatment Center 3Health News:Many Obese U.S. Kids Think They're Thinner Than They Are 2Health News:Many Obese U.S. Kids Think They're Thinner Than They Are 3Health News:Celebrating Innovation and Invention 2Health News:Vote Now; BPI SPORTS is Nominated for Eight 2014 Bodybuilding.com Supplement Awards 2Health News:Vote Now; BPI SPORTS is Nominated for Eight 2014 Bodybuilding.com Supplement Awards 3
... Infosys Chairman N R Narayana Murthy today slammed as 'absolutely cruel' ... record//. ,'It is cruel. It is absolutely cruel. We are ... Infosys campus as he endorsed the view of former athlete P ... about burning out our children. If Budhia Singh could win the ...
... of the prestigious Jawaharlal Institute of Post-graduate Medical Education ... to protest the move to reserve seats for OBC ... the Central government-administered JIPMER yesterday took out a rally ... ,A spokesperson of the JIPMER Students Association ...
... found migraine medication sumatriptan, known by the brand names ... to trigeminal neuralgia up to eight hours. ... provide relief for people who suffer from, trigeminal neuralgia. ... rapid and significant pain relief without serious adverse reactions. ...
... women with hypertension compared to those with normal blood ... of hypertension appear to be significant predictors of FSD, ... inability to achieve an orgasm, and pain during sexual ... of the American Society of Hypertension said. ...
... Northern Ireland, expressing his apology over the cancer screening scandal ... who had suffered distress and anxiety can claim compensation. ... the cancer diagnosis of six women owing to substandard care ... dying from breast cancer attributable to the delay in diagnosis ...
... medical technology continues to advance fertility procedures such as ... common practice. // But a study published in the ... even after thorough screenings of sperm donors, genetic disorders ... ,Laurence Boxer, MD, and colleagues from the University of ...
Cached Medicine News:Health News:Study Finds That Migraine Drug Can Ease The Severest Of Facial Pain 2Health News:Minster Apologizes To Women Involved In Breast Cancer Screening Scandal 2
(Date:7/23/2014)... , July 23, 2014 Inovio ... successful results from its randomized, double-blind, placebo-controlled ... with biopsy-proven cervical intraepithelial neoplasia 2/3 (CIN2/3) ... or 18. Treatment with VGX-3100, Inovio,s HPV16/18-specific ... to CIN1 or no disease, meeting the ...
(Date:7/23/2014)... 8,000 attendees will converge in Washington D.C. ... (RBC), taking place July 23-26 at the Gaylord National ... to "Lead Change" in the pharmacy profession, in their ... future. "RBC is the perfect opportunity for ... learn new ways they can lead change in healthcare ...
(Date:7/23/2014)... 23, 2014  Mevesi Inc. would like to ... integration provides pharmacies with the ability to send ... patients. Mevesi,s solutions provide an ... to define target marketing campaigns. This coupled with ... within the Digital Marketing, Population Management, and Pharmacy ...
Breaking Medicine Technology:Inovio Pharmaceuticals HPV Immunotherapy Achieves Primary Efficacy Endpoint in Randomized Phase II Cervical Dysplasia Trial 2Inovio Pharmaceuticals HPV Immunotherapy Achieves Primary Efficacy Endpoint in Randomized Phase II Cervical Dysplasia Trial 3Inovio Pharmaceuticals HPV Immunotherapy Achieves Primary Efficacy Endpoint in Randomized Phase II Cervical Dysplasia Trial 4Inovio Pharmaceuticals HPV Immunotherapy Achieves Primary Efficacy Endpoint in Randomized Phase II Cervical Dysplasia Trial 5Cardinal Health Encourages Independent Pharmacists to Lead Change at 24th Annual Retail Business Conference 2Cardinal Health Encourages Independent Pharmacists to Lead Change at 24th Annual Retail Business Conference 3Cardinal Health Encourages Independent Pharmacists to Lead Change at 24th Annual Retail Business Conference 4Cardinal Health Encourages Independent Pharmacists to Lead Change at 24th Annual Retail Business Conference 5Cardinal Health Encourages Independent Pharmacists to Lead Change at 24th Annual Retail Business Conference 6Mevesi Enhances Solutions with Variable Print Media Capabilities! 2
... 9, 2010 Alere Inc. (NYSE: ALR ), ... their health at home through the merger of rapid diagnostics ... Lazard Capital Markets 7th Annual Healthcare Conference being held November ...  Jon Russell, Vice President, Finance, will attend.  Mr. Russell,s presentation ...
... Across the country, thousands of senior citizens and people living ... well enough in their homes to groom themselves, prepare meals ... are often difficult for those in need of mobility assistance, ... For Medicare beneficiaries in need of mobility assistance, the lame-duck ...
Cached Medicine Technology:Congress Urged to Delay New Medicare Wheelchair Rental Policy 2Congress Urged to Delay New Medicare Wheelchair Rental Policy 3Congress Urged to Delay New Medicare Wheelchair Rental Policy 4
Mounted on a sturdy, molded headband,the Classic has a fully adjustable crown,strap and cushioning that adds to,your comfort....
The Convertible lets you attach the,High Lite optic directly to your loupes....
... is a product of AlloSource, one ... human tissue processing, and Interpore Cross, ... InterGro combines AlloGro DBM with ... deliver a unique bone graft that ...
Immunoassay for the detection of Group A streptococcal antigen directly from throat swab specimens. ,Rapid, accurate diagnosis assures prompt treatment....
Medicine Products: