Navigation Links
Direct recording shows brain signal persists even in dreamless sleep
Date:9/30/2008

St. Louis, Sept. 30, 2008 Neuroscientists at Washington University School of Medicine in St. Louis have taken one of the first direct looks at one of the human brain's most fundamental "foundations": a brain signal that never switches off and may support many cognitive functions.

The results, appearing online this week in the Proceedings of the National Academy of Sciences, are an important step forward for efforts to outline what neuroscientists call the functional architecture of the brain. Better understanding of this architecture will aid efforts to treat brain injury and mental disorders.

Although the brain's different specialized regions can be considered as a collection of physical structures, functional architecture instead focuses on metaphorical structures formed by brain processes and interactions among different brain regions. The "foundation" highlighted in the new study is a low-frequency signal created by neuronal activity throughout the brain. This signal doesn't switch off even in dreamless sleep, possibly to help maintain basic structure and facilitate offline housekeeping activities.

"A different, more labile and higher-frequency signal known as the gamma frequency activity has been the focus of much brain research in recent years," says first author Biyu He, a graduate student. "But we found that signal loses its large-scale structure in deep sleep, while the low-frequency signal does not, suggesting that the low-frequency signal may be more fundamental."

"What we've been finding is reorienting the way we think about how the brain works," says senior author Marcus Raichle, M.D., professor of radiology, of neurology and of neurobiology. "We're starting to see the brain as being in the prediction business, with ongoing, organized carrier frequencies within the systems of the brain that keep them prepared for the work they need to do to perform mental tasks."

Neurologists have already spent
'/>"/>

Contact: Michael C. Purdy
purdym@msnotes.wustl.edu
314-286-0122
Washington University School of Medicine
Source:Eurekalert

Page: 1 2 3

Related medicine news :

1. Direct Anesthetic Infusion Helps Colorectal Cancer Patients
2. AUDIO from Medialink and Commit Lozenge: Wanna Quit Smoking With Therapeutic Nicotine? Just Follow the Directions
3. National Association of Subrogation Professionals (NASP), the Largest Insurance Subrogation Association in the World - Announced Today that Leslie Wiernik has Joined the Organization as Director of Education
4. HealthInsuranceFinders.com Launches Video Contest for Young Directors
5. Arrow International Urges Shareholders To Vote for Approval of the $45.50 Teleflex Inc. Merger and for the Current Board of Directors
6. Coalition for Pulmonary Fibrosis Launches Aggressive Ad Campaign Directed at United States Congress
7. Zimmer Holdings Offer and ORTHOsoft Directors Circular Mailed to Shareholders
8. Glass Lewis Recommends Arrow Shareholders Vote on the White Proxy Card for Merger With Teleflex and for Current Board of Directors at Arrow Annual Meeting
9. STERIS Corporation Board of Directors Names Walter M. Rosebrough Jr. President and Chief Executive Officer
10. Fitness Champion Natalie Waples to be Spokesperson for Natural Nutrition International Direct Marketing Campaign
11. Nick Childs Joins Grey New York as Director of Content Development
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/25/2014)... York, New York (PRWEB) July 25, 2014 ... dismissal and summary judgment in two DePuy Pinnacle hip ... paving the way for the claims to go before ... reports. In an opinion rendered on July 18th, U.S. ... Texas, ruled that the two Plaintiffs’ claims may proceed ...
(Date:7/25/2014)... As reported by the New Orleans Advocate in ... (7/3), the state of Louisiana has recently seen a large ... cocaine. Officials believe the increase is due to a misconception ... marijuana. However, both doctors and police confirm that that belief ... call it “poison,” doctors have acknowledged that the Louisiana Poison ...
(Date:7/25/2014)... Youngstown, Ohio (PRWEB) July 25, 2014 ... processed foods? How to know? , Read the labels! ... labels and determine how it relates to health during ... 12:30 p.m. Aug. 1 at Humility House, 755 Ohltown ... Lackey will lead an informational discussion and answer questions. ...
(Date:7/25/2014)... of America (GSA) the nation,s largest ... has chosen Heather M. Young, PhD, RN, ... the 2014 recipient of the Doris Schwartz Gerontological ... by GSA,s Health Sciences Section, is given to ... outstanding and sustained contribution to gerontological nursing research. ...
(Date:7/25/2014)... As reported by Wood TV 8 in the article ... a nearly 500-person increase in heroin related overdose deaths in ... 1999 and 2002, the toll increased to 728 during the ... drug users in Michigan have turned to heroin after getting ... price of both substances, noting that an 80-milligram pill can ...
Breaking Medicine News(10 mins):Health News:First Federal DePuy Pinnacle Hip Lawsuits Headed for Trial, As Judge Denies Defense Motions For Dismissal, Summary Judgment, Bernstein Liebhard LLP Reports 2Health News:First Federal DePuy Pinnacle Hip Lawsuits Headed for Trial, As Judge Denies Defense Motions For Dismissal, Summary Judgment, Bernstein Liebhard LLP Reports 3Health News:First Federal DePuy Pinnacle Hip Lawsuits Headed for Trial, As Judge Denies Defense Motions For Dismissal, Summary Judgment, Bernstein Liebhard LLP Reports 4Health News:Louisiana Recognizes Dangers of Synthetic Marijuana 2Health News:Learn to Decipher Food Labels at Humility House 2Health News:Young earns GSA's 2014 Doris Schwartz Gerontological Nursing Research Award 2Health News:Rise in Heroin Use, Overdose Deaths in Michigan 2
... decision to lower requirements for designation , , WEDNESDAY, ... U.S. government decision to lower the benchmark for ... new Johns Hopkins Medical Institutions study reports the ... 14 transplants a year. , The Centers for ...
... A new study from the Monell Center increases ... nausea and vomiting that often afflict patients undergoing ... of new approaches to combat these debilitating side ... the nausea and vomiting that accompany chemotherapy treatment, ...
... (Nasdaq: AMCS ),a leader in radiology and medical image and ... investors at the UBS Global Healthcare Services Conference in New,York., ... -- Tuesday, February 12, 2008 ... 11:30 a.m. (Eastern Time), ...
... Idaho, January 30, 2008 Preventative heart healthcare gains ... NHWK), announced its involvement as the exclusive radiology provider ... Initiative is a joint research effort to advance the ... to be the primary underlying cause of heart attacks ...
... Thanks to Nutrition on the Go, an,innovative new program ... more than 1,700 restaurants nationwide is available in,a flash through ... and menu item., Not cell phone savvy? No worries. ... menu item you need help with, then send that info ...
... Jan. 30 Onmark, a leading,national group ... McKesson Specialty company, today announced the launch ... goal of helping community-based,oncology practices improve the ... which is facilitated through OTN,s industry-leading Lynx,Mobile(TM) ...
Cached Medicine News:Health News:Study Challenges New Benchmark for High-Volume Heart Transplant Hospitals 2Health News:Explaining chemotherapy-associated nausea 2Health News:AMICAS to Present at UBS Global Healthcare Services Conference 2Health News:NightHawk Radiology exclusive radiology provider for high-risk plaque research initiative 2Health News:Ring Up Instant Nutrition Info via Text Message to DIET1 (34381) 2Health News:Onmark Launches Integrated Quality(TM) Program to Help Physicians Succeed With National Quality Initiatives 2Health News:Onmark Launches Integrated Quality(TM) Program to Help Physicians Succeed With National Quality Initiatives 3Health News:Onmark Launches Integrated Quality(TM) Program to Help Physicians Succeed With National Quality Initiatives 4
(Date:7/24/2014)... Kan. , July 24, 2014  Parnell ... two compounds that will be added to Parnell,s ... Australian-based CIMTECH Pty Ltd, a biotechnology company. The ... 122 have shown promise in bone regeneration and ... to develop the compounds for the veterinary market ...
(Date:7/24/2014)... MARSEILLE , Frankreich, July 24, ... , Weltweite Exklusivlizenz der Universität ... von Tests auf SF3B1-Mutationen, einschließlich von Next-Generation-Sequencing ... Test weist Mutationen des SF3B1-Gens nach, die ... günstigen Krankheitsverlauf vermuten lassen  QIAGEN ...
(Date:7/24/2014)... -- Abaxis, Inc. (NasdaqGS: ABAX ), a medical ... financial results for the first fiscal quarter ended June ... Revenues of $47.5 million, up 10% over last year,s ... 50% over last year,s comparable quarter. Revenues ... up 20% over last year,s comparable quarter. , ...
Breaking Medicine Technology:Parnell Acquires License for Intellectual Property and Rights to Develop Compounds for Bone and Dermal Regeneration 2Parnell Acquires License for Intellectual Property and Rights to Develop Compounds for Bone and Dermal Regeneration 3Parnell Acquires License for Intellectual Property and Rights to Develop Compounds for Bone and Dermal Regeneration 4QIAGEN erweitert Pipeline für die personalisierte Medizin um vielversprechende genomische Biomarker zur Prognosebestimmung bei Blutkrebsbehandlungen 2QIAGEN erweitert Pipeline für die personalisierte Medizin um vielversprechende genomische Biomarker zur Prognosebestimmung bei Blutkrebsbehandlungen 3QIAGEN erweitert Pipeline für die personalisierte Medizin um vielversprechende genomische Biomarker zur Prognosebestimmung bei Blutkrebsbehandlungen 4QIAGEN erweitert Pipeline für die personalisierte Medizin um vielversprechende genomische Biomarker zur Prognosebestimmung bei Blutkrebsbehandlungen 5Abaxis Reports Financial Performance for the First Quarter of Fiscal 2015 2Abaxis Reports Financial Performance for the First Quarter of Fiscal 2015 3Abaxis Reports Financial Performance for the First Quarter of Fiscal 2015 4Abaxis Reports Financial Performance for the First Quarter of Fiscal 2015 5Abaxis Reports Financial Performance for the First Quarter of Fiscal 2015 6Abaxis Reports Financial Performance for the First Quarter of Fiscal 2015 7Abaxis Reports Financial Performance for the First Quarter of Fiscal 2015 8Abaxis Reports Financial Performance for the First Quarter of Fiscal 2015 9Abaxis Reports Financial Performance for the First Quarter of Fiscal 2015 10Abaxis Reports Financial Performance for the First Quarter of Fiscal 2015 11
... Pieris AG presented the results ... most advanced Anticalin ® , PRS-050, an anti-VEGF ... Conference held in San Francisco, California.  The dose-escalation ... tolerability, pharmacokinetics (PK) and pharmacodynamics (PD) of PRS-050 ...
... /PRNewswire-Asia-FirstCall/ -- Concord Medical Services Holdings Limited ("Concord ... operator of the largest network of radiotherapy and diagnostic imaging ... for the third quarter ended September 30, 2011. ... revenues were RMB124.7 million ($19.6 million)(A) in the third quarter ...
Cached Medicine Technology:Pieris Announces Results and Successful Completion of its PRS-050 Anticalin Phase I Trial at AACR-EORTC-NCI Molecular Targets and Cancer Therapeutics Conference 2Pieris Announces Results and Successful Completion of its PRS-050 Anticalin Phase I Trial at AACR-EORTC-NCI Molecular Targets and Cancer Therapeutics Conference 3Concord Medical Reports Third Quarter 2011 Financial Results 2Concord Medical Reports Third Quarter 2011 Financial Results 3Concord Medical Reports Third Quarter 2011 Financial Results 4Concord Medical Reports Third Quarter 2011 Financial Results 5Concord Medical Reports Third Quarter 2011 Financial Results 6Concord Medical Reports Third Quarter 2011 Financial Results 7Concord Medical Reports Third Quarter 2011 Financial Results 8Concord Medical Reports Third Quarter 2011 Financial Results 9Concord Medical Reports Third Quarter 2011 Financial Results 10Concord Medical Reports Third Quarter 2011 Financial Results 11Concord Medical Reports Third Quarter 2011 Financial Results 12Concord Medical Reports Third Quarter 2011 Financial Results 13Concord Medical Reports Third Quarter 2011 Financial Results 14Concord Medical Reports Third Quarter 2011 Financial Results 15