Navigation Links
Deep sleep short-circuits brain's grid of connectivity

ables, is not transparent and may not always be in use.

"What we needed to do was stimulate an area of the brain and see if it talks to another part. We have a tool to do that now," says Tononi, referencing one of only a handful of machines in the world capable of stimulating precise regions of the brain from outside the skull while recording the resulting electrical responses.

The paddle-like device is placed over the head of a subject and generates a magnetic field. The magnetic field, in turn, produces pulses of electricity lasting less than a millisecond and that are capable of penetrating the skull to stimulate brain cells.

"Essentially, we activate an area," Tononi says. "We can do this anywhere in the brain. Once an area is activated, it responds by sending signals, waves that travel through the axons (nerve fibers) to other regions of the brain. At the same time, we can record how the rest of the brain is responding."

The new technique promises science a way to see how the different areas of the brain communicate, Tononi says.

Beyond helping illuminate the secrets of consciousness, the new study, which was directed in part by Marcello Massimini, a research associate in the UW Psychiatric Institute and Clinics, may aid in the development of diagnostic and therapeutic tools for neurological and psychiatric disorders that affect consciousness, such as schizophrenia. That work is now being pursued by the Wisconsin group.

In addition to Tononi and Massimini, co-authors of the Science paper include Fabio Ferrarelli, Reto Huber, Steve K. Esser and Harpreet Singh, all of UW-Madison.


'"/>

Source:University of Wisconsin-Madison


Page: 1 2 3

Related biology news :

1. Wisconsin researchers identify sleep gene
2. Brain-mapping technique aids understanding of sleep, wakefulness
3. Newly discovered protein an important tool for sleeping sickness research
4. Compound might defeat African sleeping sickness, clinical trial beginning this month
5. Flies on speed offer insight into the roles of dopamine in sleep and arousal
6. Asleep in the deep: Model helps assess ocean-injection strategy for combating greenhouse effect
7. Waking a sleeping virus
8. Morning grogginess more debilitating than sleep deprivation, according to CU-Boulder study
9. Losing sleep undoes the rejuvenating effects new learning has on the brain
10. A large step forward in the fight against African sleeping sickness
11. Serotonin, acting in a specific brain region, promotes sleep in fruit flies
Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Deep sleep short circuits brain grid connectivity

(Date:10/31/2014)... been studying the behavior of approximately 300 wild ... They observed that ravens slowly build alliances through ... they also observed that these affiliative interactions were ... about 50 % of the cases these interventions ... ravens, intervening can be potentially risky when the ...
(Date:10/30/2014)... Restoring wetlands can help reduce or reverse soil ... research in California,s Sacramento-San Joaquin River Delta by ... study, which is one of the first to ... methane as they cycle through wetlands, appears in ... . , Worldwide, agricultural drainage of organic ...
(Date:10/30/2014)... life, cells immediately begin accepting assignments to become a ... humans, are special. The cells of mammalian embryos get ... the protective placenta or to commit to forming the ... research from Michigan State University has revealed key discoveries. ... PLOS Genetics , provide insights into where ...
Breaking Biology News(10 mins):Dartmouth study finds restoring wetlands can lessen soil sinkage, greenhouse gas emissions 2Identifying the source of stem cells 2
... (NYSE: A) today introduced a high-performance ion trap ... life-science researchers to identify 60 to 80 percent ... such as protein identification and biomarker discovery, potentially ... cancer and speeding drug development efforts. The Agilent ...
... frequency of drug resistance in isolates of the AIDS ... urgent necessity. Host genes required to support the replication ... targets, but relatively few appropriate target genes have been ... conducted by Dr. Suzanne Sandmeyer and colleagues at the ...
... D. Anderson Cancer Center have developed a way to test ... chemotherapy drug Taxol are effectively killing tumor cells. They say ... to accurately assess whether patients are responding to these agents, ... , In two different studies being presented at the ...
Cached Biology News:Product improves peptide identification for proteomics research 2Study reveals candidate targets for anti-retroviral therapeutics 2Measuring Enzymes At End Of Cancer Pathway Predicts Outcome Of Tarceva, Taxol 2Measuring Enzymes At End Of Cancer Pathway Predicts Outcome Of Tarceva, Taxol 3
(Date:10/30/2014)... Grace Century portfolio project, Provia Laboratories , ... the Board, to the National Stem Cell Ethics Committee ... by the Ministry of Health on behalf of the Government ... More than a year after Bahamian Parliament passed the ... Christie said the government has completed the accompanying regulations and ...
(Date:10/30/2014)... , Oct. 30, 2014  Regado Biosciences, Inc. (Nasdaq: ... hold a conference call and live audio webcast on ... discuss its third quarter 2014 financial results. ... by dialing (888) 347-1165 for domestic callers or (412) ... webcast live under the investor relations section of the ...
(Date:10/27/2014)... 27, 2014 Ryan Carfley , Managing ... to sit down with Bryan Hamilton, the publisher of the ... discuss talent in the Research Triangle region of North Carolina. ... highlighted at the roundtable include the role of social ... of work/life balance and the unique role that Millennials play ...
(Date:10/27/2014)... and TORONTO , ... ( www.generex.com ) (OTCQB: GNBT) today announced two ... response triggered by its novel proprietary cancer immunotherapeutic ... in breast cancer patients. The AE37 cancer vaccine ... Antigen Express, Inc. ( www.antigenexpress.com ). The presentations ...
Breaking Biology Technology:Grace Century’s Stem Cell Biobank Project Announces Chairman’s Appointment to National Stem Cell Ethics Committee of The Bahamas 2Grace Century’s Stem Cell Biobank Project Announces Chairman’s Appointment to National Stem Cell Ethics Committee of The Bahamas 3Regado Biosciences to Provide Third Quarter 2014 Financial Results 2Personify's Ryan Carfley Talks Recruiting with Triangle Business Journal, RPG Solutions 2Personify's Ryan Carfley Talks Recruiting with Triangle Business Journal, RPG Solutions 3Generex Announces Presentations Correlating Immunological Response with Reduced Recurrence in Phase II Study of AE37 Breast Cancer Vaccine in Patients at the American College of Surgeons 2Generex Announces Presentations Correlating Immunological Response with Reduced Recurrence in Phase II Study of AE37 Breast Cancer Vaccine in Patients at the American College of Surgeons 3Generex Announces Presentations Correlating Immunological Response with Reduced Recurrence in Phase II Study of AE37 Breast Cancer Vaccine in Patients at the American College of Surgeons 4
... the price of soybean seed skyrocketing, soybean growers are looking for ... seeding rate. The research and education director of the North Central ... and profit potential in 2009. , ... Urbandale, Iowa ...
... (ASX: CYT) has today circulated a letter and ... shareholders. The letter provides an update on the ... 2009 and provides recommendations on how to vote ... 2009.(Photo: http://www.newscom.com/cgi-bin/prnh/20090225/NY75105 )The letter and the sample ...
... SEATTLE, Feb. 24 Implicit,Bioscience Ltd today announced ... Eli Lilly and Company. Implicit has paid an,undisclosed ... will also,receive a royalty on future IC14 sales. ... substantial expertise and passion to the,treatment of patients ...
Cached Biology Technology:NCSRP Research Director: "Earlier Planting can Increase Soybean Yields" 2NCSRP Research Director: "Earlier Planting can Increase Soybean Yields" 3Cytopia Letter to Progen Shareholders 2Cytopia Letter to Progen Shareholders 3Cytopia Letter to Progen Shareholders 4Cytopia Letter to Progen Shareholders 5Implicit Licenses Clinical Stage Antibody Program From Lilly 2Implicit Licenses Clinical Stage Antibody Program From Lilly 3
BD BioCoat Fibronectin 35 mm Culture Dishes, tissue-culture treated polystyrene with a uniform application of human fibronectin....
... a positive selection for creating baculovirus recombinants ... insect cells. The kit improves on the ... eliminating the time-consuming steps of plaque purification. ... with a portion of the essential open ...
... General description: Dish uses include large-scale colony-counting ... with PBA Flexys TM automated colony ... is a new product number, created to ... no availability yet, please order under the ...
Mouse monoclonal [7B9] to beta II Tubulin ( Abpromise for all tested applications). Antigen: Synthetic peptide, CEEEEGEDEA found at the c-terminus of beta II tubulin. Entrez GeneID: 10383 ...
Biology Products: