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:3/20/2015)... --Research and Markets ( http://www.researchandmarkets.com/research/rswjb4/hand_geometry ) has announced ... Business Report" report to their offering. This ... Thousands. The report provides separate comprehensive analytics for the US, ... Europe , Asia-Pacific , ... Annual estimates and forecasts are provided for the ...
(Date:3/19/2015)... March 19, 2015  NXT-ID, Inc. (NASDAQ: NXTD ... on the growing mobile commerce market, announces its biometric payment ... clip that aired this week on Washington DC,s ... In a segment "The Next Great Thing", host ... way to pay, and ,a really big breakthrough in mobile ...
(Date:3/17/2015)... March 17, 2015 Emotient, the leader ... today announced general availability of Emotient Analytics ... the analysis of facial expressions. The system analyzes ... content, products and services. It delivers audience response ... sentiment - as derived from facial evidence of ...
Breaking Biology News(10 mins):Hand Geometry - Global Strategic Business Report 2015: An Essential Security Component for both Government & Enterprise Sector 2Hand Geometry - Global Strategic Business Report 2015: An Essential Security Component for both Government & Enterprise Sector 3Hand Geometry - Global Strategic Business Report 2015: An Essential Security Component for both Government & Enterprise Sector 4NXT-ID's Wocket Smart Wallet Featured on Fox News Segment, "The Next Great Thing" 2NXT-ID's Wocket Smart Wallet Featured on Fox News Segment, "The Next Great Thing" 3New Emotient Web Service Measures Audience Response Using On-Demand Facial Expression Analysis 2New Emotient Web Service Measures Audience Response Using On-Demand Facial Expression Analysis 3New Emotient Web Service Measures Audience Response Using On-Demand Facial Expression Analysis 4
... Fluctuations in penguin populations in the Antarctic are linked more ... to changes in their habitats, according to a new study ... Academy of Sciences . Funded in part by the Lenfest ... "winners" of changing conditions, such as large-scale ice melting, may ...
... NEW YORK (April 11, 2011) -- Weill Cornell Medical ... Surgeons have announced that The Mortimer D. Sackler, M.D. ... awarded to The Rockefeller University,s Dr. Fernando Nottebohm for ... the discovery of neuronal replacement. Dr. Nottebohm is ...
... FINDINGS: Certain differentiated cells in breast tissue can spontaneously ... researchers. Until now, scientific dogma has stated that differentiation ... return to the flexible stem-cell state on their own. ... well as for breast cancer cells. RELEVANCE: ...
Cached Biology News:Penguins that shun ice still lose big from a warming climate 2Sackler Prize awarded to pioneering neuroscientist 2Sackler Prize awarded to pioneering neuroscientist 3Scientists identify a surprising new source of cancer stem cells 2Scientists identify a surprising new source of cancer stem cells 3
(Date:4/25/2015)... (PRWEB) April 25, 2015 Join us ... 29th: Analyzing Kinase Inhibitor Residence Times using the Transcreener® ... of inhibitor residence times is increasingly being incorporated into ... can result in improved efficacy, increased therapeutic window and ... determined using immobilized ligand methods such surface plasmon resonance, ...
(Date:4/24/2015)... Top student social innovators from the ... universities, including UCSD and SDSU, will pitch their impact ... national and nonprofit companies for an opportunity to win ... Social Innovation Challenge 2015 . , The 2015 Social ... addressing a diverse range of issues including poverty, education, ...
(Date:4/24/2015)... SD and Tempe, AZ (PRWEB) April 24, 2015 ... Technology and Arizona State University (ASU) have entered into ... joint projects. , A memorandum of agreement signed by ... long distance learning, student success and other services particularly, ... resources. , “We have complementary strengths and a ...
(Date:4/24/2015)... California (PRWEB) April 24, 2015 ... key milestones in its allogeneic stem-cell product development ... to properly reflect the corporate strategic direction. , ... allogeneic (donor) adipose stem cell development program has ... of our cGMP manufacturing facility and hiring of ...
Breaking Biology Technology:BellBrook Labs Webinar: Analyzing Kinase Inhibitor Residence Times using the Transcreener® ADP Assay 25th Annual Social Innovation Challenge at University of San Diego - Students Pitch to Live Judging Panel to Take Home $75K 25th Annual Social Innovation Challenge at University of San Diego - Students Pitch to Live Judging Panel to Take Home $75K 3South Dakota Mines, Arizona State University Pave Way for Cooperative Research 2Vet-Stem, Inc. Meets New Milestones and Changes Name to VetStem Biopharma 2
... 28 Boston,Scientific Corporation (NYSE: BSX ) ... that Boston Scientific has completed its acquisition of ... April 16.,Under the terms of the transaction, all ... per share in cash, for a total of,approximately ...
... N.J., May 28 National Stem Cell,Holding, Inc. (OTC: ... steps to,change its name to Proteonomix, Inc. The change ... Michael Cohen, President/CEO, stated: "Our new name reflects the ... development stage and,commencing the commercialization of our technologies. These ...
... Provides Additional Global Corporate Finance, Management and ... Manufacturing ... (TSX: NVN) announced today the appointment of Gordon H.,Busenbark to ... chief financial officer of Xytis Pharmaceuticals, a privately,held development-stage specialty ...
Cached Biology Technology:Boston Scientific Completes Acquisition of CryoCor 2Boston Scientific Completes Acquisition of CryoCor 3National Stem Cell Holding, Inc. Announces the Change of Its Name to Proteonomix, Inc. 2National Stem Cell Holding, Inc. Announces the Change of Its Name to Proteonomix, Inc. 3Nventa Appoints Gordon H. Busenbark to Board of Directors 2