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:7/30/2015)... ... July 30, 2015 , ... In an effort to provide the twenty ... making a change in his practice. , The decision will also allow him to ... Aggarwal will be transferring his in-patient admissions to the hospitalists at East Liverpool City ...
(Date:7/30/2015)... York, NY (PRWEB) , ... July 30, 2015 ... ... Setria®Glutathione and Sustamine® L-Alanyl-L-Glutamine for people on the go. With no water needed, ... Recovery Chewable as a simple way to get the natural ingredients that may ...
(Date:7/30/2015)... ... July 30, 2015 , ... Mullin/Ashley Associates, Inc. ... three awards in the Service Industry Advertising Awards 12th annual national competition. ... Development Corporation and University of Maryland Shore Regional Health. , A Gold Award ...
(Date:7/30/2015)... ... July 30, 2015 , ... Well-known ... of the largest, family-owned low cost service and repair companies. For 35 years, ... well as growing their company to meet the demands of the changing technological ...
(Date:7/30/2015)... ... , ... 24/7 Care At Home, a high-quality provider of comprehensive home health ... Centers for Medicare and Medicaid (CMS) have awarded its agency the highest star rating ... Home’s agency is one of three top Orange County agencies to earn the 5-Star ...
Breaking Medicine News(10 mins):Health News:River Valley Physician Dr. Aggarwal is Making Changes to his Practice 2Health News:Zaca Life Introduces Recovery Chewable Packets with Setria® Glutathione and Sustamine® L-Alanyl-L-Glutamine 2Health News:Zaca Life Introduces Recovery Chewable Packets with Setria® Glutathione and Sustamine® L-Alanyl-L-Glutamine 3Health News:Zaca Life Introduces Recovery Chewable Packets with Setria® Glutathione and Sustamine® L-Alanyl-L-Glutamine 4Health News:Mullin/Ashley Associates Takes Home Wins for Three Clients in the Service Industry Advertising Awards Annual Competition 2Health News:Mullin/Ashley Associates Takes Home Wins for Three Clients in the Service Industry Advertising Awards Annual Competition 3Health News:Bill Howe Plumbing, Heating & Air Launches Online Application to Prospective Employees 2Health News:Bill Howe Plumbing, Heating & Air Launches Online Application to Prospective Employees 3Health News:24/7 Care At Home Earns a 5-Star Rating from the Centers for Medicare and Medicaid (CMS) 2
... to be a killer in Assam with 275 deaths reported ... years, parliament was told Friday.// ,Minister of State ... written reply in the Rajya Sabha that Assam is endemic ... six years starting 2001 with 47,29,65 cases reported. ...
... Scientists at the Stanford University have discovered that skin ... , longitude and altitude to reach their destined place ... this plays an important role in directing the embryonic ... the body that we didn't understand before,’ said John ...
... production of fat and cholesterol, has been identified by ... This may play a major role in advancing the ... type II diabetes and high blood pressure. ,"We ... a family of molecular switches to turn on cholesterol ...
... may have more functions in reproduction than merely being ... that the semen from fertile men contains a multitude ... Hormone) initiates ovulation. Some other hormones are reported to ... ,The researcher, Rebecca Burch, thinks human males have evolved ...
... in the diet of some Irish women has put them ... even attention problems//, according to the preliminary results of a ... ,A team of researchers at University College Dublin (UCD, ... consuming enough iodine. This could adversely affect the development of ...
... implication when tiny particles in the air is inhaled, ... rats inhale// , nano-sized particles quickly traverse the pathway ... This study is published in the August issue of ... gene expression, which the researchers found, that could signal ...
Cached Medicine News:Health News:Skin Cells Make Use of Geographic Co-Ordinates to Reach Their Destination 2Health News:Skin Cells Make Use of Geographic Co-Ordinates to Reach Their Destination 3Health News:A Major Break Through in Treatment for Metabolic Syndrome 2Health News:A Major Break Through in Treatment for Metabolic Syndrome 3Health News:A Major Break Through in Treatment for Metabolic Syndrome 4Health News:Iodine Deficiency affects IQ of Children 2Health News:Nano-sized inhaled particles traverse quickly from nose to brain 2
(Date:7/30/2015)...  Amgen (NASDAQ: AMGN ) today announced ... Key results include: , Total revenues increased ... to $5,370 million, with 6 percent product sales ... Prolia ® (denosumab), Sensipar ® (cinacalcet), ... (denosumab). Unfavorable changes in foreign exchange rates impacted ...
(Date:7/30/2015)... WOODCLIFF LAKE, N.J. , July 30, 2015 /PRNewswire/ ... submitted simultaneously in the United States ... (to the FDA, EMA and MHLW, respectively) for eribulin, ... sarcoma (STS) who have received prior chemotherapy for advanced ... are based on data from a pivotal global Phase ...
(Date:7/30/2015)... Japan , July 30, 2015 ... of the study to fulfill the post-marketing commitment ... the Pan European Multi-Database Bladder Cancer Risk ... retrospective matched cohort study, conducted in four European ... HCI) with up to 10 years of follow-up. ...
Breaking Medicine Technology:Amgen's Second Quarter 2015 Revenues Increased 4 Percent To $5.4 Billion And Adjusted Earnings Per Share (EPS) Increased 8 Percent To $2.57 2Amgen's Second Quarter 2015 Revenues Increased 4 Percent To $5.4 Billion And Adjusted Earnings Per Share (EPS) Increased 8 Percent To $2.57 3Amgen's Second Quarter 2015 Revenues Increased 4 Percent To $5.4 Billion And Adjusted Earnings Per Share (EPS) Increased 8 Percent To $2.57 4Amgen's Second Quarter 2015 Revenues Increased 4 Percent To $5.4 Billion And Adjusted Earnings Per Share (EPS) Increased 8 Percent To $2.57 5Amgen's Second Quarter 2015 Revenues Increased 4 Percent To $5.4 Billion And Adjusted Earnings Per Share (EPS) Increased 8 Percent To $2.57 6Amgen's Second Quarter 2015 Revenues Increased 4 Percent To $5.4 Billion And Adjusted Earnings Per Share (EPS) Increased 8 Percent To $2.57 7Amgen's Second Quarter 2015 Revenues Increased 4 Percent To $5.4 Billion And Adjusted Earnings Per Share (EPS) Increased 8 Percent To $2.57 8Amgen's Second Quarter 2015 Revenues Increased 4 Percent To $5.4 Billion And Adjusted Earnings Per Share (EPS) Increased 8 Percent To $2.57 9Amgen's Second Quarter 2015 Revenues Increased 4 Percent To $5.4 Billion And Adjusted Earnings Per Share (EPS) Increased 8 Percent To $2.57 10Amgen's Second Quarter 2015 Revenues Increased 4 Percent To $5.4 Billion And Adjusted Earnings Per Share (EPS) Increased 8 Percent To $2.57 11Amgen's Second Quarter 2015 Revenues Increased 4 Percent To $5.4 Billion And Adjusted Earnings Per Share (EPS) Increased 8 Percent To $2.57 12Amgen's Second Quarter 2015 Revenues Increased 4 Percent To $5.4 Billion And Adjusted Earnings Per Share (EPS) Increased 8 Percent To $2.57 13Amgen's Second Quarter 2015 Revenues Increased 4 Percent To $5.4 Billion And Adjusted Earnings Per Share (EPS) Increased 8 Percent To $2.57 14Amgen's Second Quarter 2015 Revenues Increased 4 Percent To $5.4 Billion And Adjusted Earnings Per Share (EPS) Increased 8 Percent To $2.57 15Amgen's Second Quarter 2015 Revenues Increased 4 Percent To $5.4 Billion And Adjusted Earnings Per Share (EPS) Increased 8 Percent To $2.57 16Amgen's Second Quarter 2015 Revenues Increased 4 Percent To $5.4 Billion And Adjusted Earnings Per Share (EPS) Increased 8 Percent To $2.57 17Amgen's Second Quarter 2015 Revenues Increased 4 Percent To $5.4 Billion And Adjusted Earnings Per Share (EPS) Increased 8 Percent To $2.57 18Amgen's Second Quarter 2015 Revenues Increased 4 Percent To $5.4 Billion And Adjusted Earnings Per Share (EPS) Increased 8 Percent To $2.57 19Amgen's Second Quarter 2015 Revenues Increased 4 Percent To $5.4 Billion And Adjusted Earnings Per Share (EPS) Increased 8 Percent To $2.57 20Amgen's Second Quarter 2015 Revenues Increased 4 Percent To $5.4 Billion And Adjusted Earnings Per Share (EPS) Increased 8 Percent To $2.57 21Amgen's Second Quarter 2015 Revenues Increased 4 Percent To $5.4 Billion And Adjusted Earnings Per Share (EPS) Increased 8 Percent To $2.57 22Amgen's Second Quarter 2015 Revenues Increased 4 Percent To $5.4 Billion And Adjusted Earnings Per Share (EPS) Increased 8 Percent To $2.57 23Eisai Submits Simultaneous Regulatory Applications for Eribulin in Soft Tissue Sarcoma in the United States, European Union and Japan 2Eisai Submits Simultaneous Regulatory Applications for Eribulin in Soft Tissue Sarcoma in the United States, European Union and Japan 3Eisai Submits Simultaneous Regulatory Applications for Eribulin in Soft Tissue Sarcoma in the United States, European Union and Japan 4Eisai Submits Simultaneous Regulatory Applications for Eribulin in Soft Tissue Sarcoma in the United States, European Union and Japan 5Takeda Announces Completion of the Pioglitazone Post-Marketing Commitment and Submission of Results to the EMA, the FDA and the PMDA 2Takeda Announces Completion of the Pioglitazone Post-Marketing Commitment and Submission of Results to the EMA, the FDA and the PMDA 3Takeda Announces Completion of the Pioglitazone Post-Marketing Commitment and Submission of Results to the EMA, the FDA and the PMDA 4Takeda Announces Completion of the Pioglitazone Post-Marketing Commitment and Submission of Results to the EMA, the FDA and the PMDA 5Takeda Announces Completion of the Pioglitazone Post-Marketing Commitment and Submission of Results to the EMA, the FDA and the PMDA 6
... Calif. , June 14 The ... directly to cancer sites with minimal exposure to ... multiple publications, according to Xoft, Inc., developer of ... provider of FDA-cleared Electronic Brachytherapy Systems, Xoft provides ...
... of the Pros & Cons of Robotic Surgery , ... PHILADELPHIA , June 11 Robotic surgery -- is it ... campaigns and targeted marketing to physicians? , , ... robots help surgeons perform surgery with greater access, visibility and precision all which reduce ...
Cached Medicine Technology:Clinical Benefits of Electronic Brachytherapy From Xoft Substantiated for the Treatment of Multiple Cancers 2Clinical Benefits of Electronic Brachytherapy From Xoft Substantiated for the Treatment of Multiple Cancers 3Clinical Benefits of Electronic Brachytherapy From Xoft Substantiated for the Treatment of Multiple Cancers 4Robotic Surgery: Medicine or Marketing? 2Robotic Surgery: Medicine or Marketing? 3Robotic Surgery: Medicine or Marketing? 4Robotic Surgery: Medicine or Marketing? 5
... Continuing a tradition of progressive centrifuge ... CL3 series. The Centra-CL3 and Centra-CL3R (refrigerated) ... todays laboratory., Quality Control Over Sample ... and lock up to 99 protocols and ...
Inquire...
... Rotor has a standard 1.5ml rotor and 6 ... Easy operation (no switches to mess with). Simply ... the plastic tab to open. Starts and stops ... 2000 x g. Only five inches in diameter. ...
Inquire...
Medicine Products: