Navigation Links
Study shows new brain connections form rapidly during motor learning
Date:11/29/2009

SANTA CRUZ, CA--New connections begin to form between brain cells almost immediately as animals learn a new task, according to a study published this week in Nature. Led by researchers at the University of California, Santa Cruz, the study involved detailed observations of the rewiring processes that take place in the brain during motor learning.

The researchers studied mice as they were trained to reach through a slot to get a seed. They observed rapid growth of structures that form connections (called synapses) between nerve cells in the motor cortex, the brain layer that controls muscle movements.

"We found very quick and robust synapse formation almost immediately, within one hour of the start of training," said Yi Zuo, assistant professor of molecular, cell and developmental biology at UCSC.

Zuo's team observed the formation of structures called "dendritic spines" that grow on pyramidal neurons in the motor cortex. The dendritic spines form synapses with other nerve cells. At those synapses, the pyramidal neurons receive input from other brain regions involved in motor memories and muscle movements. The researchers found that growth of new dendritic spines was followed by selective elimination of pre-existing spines, so that the overall density of spines returned to the original level.

"It's a remodeling process in which the synapses that form during learning become consolidated, while other synapses are lost," Zuo said. "Motor learning makes a permanent mark in the brain. When you learn to ride a bicycle, once the motor memory is formed, you don't forget. The same is true when a mouse learns a new motor skill; the animal learns how to do it and never forgets."

Understanding the basis for such long-lasting memories is an important goal for neuroscientists, with implications for efforts to help patients recover abilities lost due to stroke or other injuries.

"We initiated the motor learning s
'/>"/>

Contact: Tim Stephens
stephens@ucsc.edu
831-459-2495
University of California - Santa Cruz
Source:Eurekalert

Page: 1 2 3

Related medicine news :

1. Psychotherapy Can Boost Happiness More Than Money: Study
2. Diabetes Population to Double, Diabetes Costs to Nearly Triple, in 25 Years, New Study Shows
3. Most radiation oncologists utilize advanced medical imaging techniques, study suggests
4. Drug ads ineffective for boosting sales, could cost taxpayers: UBC-Harvard study
5. Medical pay for performance programs help improve care -- but not always, study finds
6. Study highlights from November issue of GIE: Gastrointestinal Endoscopy
7. Combo Treatment Beneficial in Biliary-Tract Cancer Study
8. Daycare may double TV time for young children, study finds
9. Circassia Announces Successful Results From Phase II Clinical Study of ToleroMune(R) Cat Allergy Therapy
10. Secretary Shinseki Announces Study of Vietnam-Era Women Veterans
11. Mothers depression a risk factor in childhood asthma symptoms, study suggests
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/31/2014)... 31, 2014 USHIO America’s Solid ... and general lighting marketplaces, today announced the launch ... will allow users to transform existing, inefficient lamp-based ... minutes. , USHIO America’s Uphoria LED downlight retrofit ... cans, allowing the user to upgrade old incandescent ...
(Date:7/31/2014)... Palm Coast Florida (PRWEB) July 31, 2014 ... the agenda for the upcoming inaugural Clinical Issues ... to be held October 13-17, 2014 at the Wailea ... " This incredible agenda has been developed for ... many of the critical CME topics," says Barbara Lyons, ...
(Date:7/31/2014)... 2014 The study, The Truth ... Medicare episode of care payments for four clinical areas—congestive ... joint replacements (hips and knees). Using the definition ... for Care Improvement program, the study examines these clinical ... in the country. , “Our study reaffirms that, in ...
(Date:7/30/2014)... Push to Walk and Macy’s invite customers ... A Cause” charity shopping event on August 23, 2014. ... shopping event created to support local charities’ fundraising efforts, ... charities across the country since 2006. Customers can participate ... Push to Walk now. , “Macy’s is ...
(Date:7/30/2014)... 31, 2014 CareSource, a nonprofit, Ohio-based ... President and CEO, Wright-Patt Credit Union, to the CareSource ... foremost financial CEO with an extensive background in leading ... and later chief operating officer at Wright-Patt Credit Union ... the Beavercreek-based Wright-Patt Credit Union that has realized more ...
Breaking Medicine News(10 mins):Health News:USHIO America Introduces Uphoria™ LED Downlight Retrofit Kits 2Health News:Clinical Issues in Primary Care Continuing Medical Education (CME) Conference - October 13-17, 2014 in Maui, Hawaii - Agenda Released 2Health News:Clinical Issues in Primary Care Continuing Medical Education (CME) Conference - October 13-17, 2014 in Maui, Hawaii - Agenda Released 3Health News:Recent Research Finds a New Driver of Cost Variation in Episode Payments 2Health News:Recent Research Finds a New Driver of Cost Variation in Episode Payments 3Health News:Push to Walk Participates in Macy’s Ninth Annual “Shop For A Cause” 2Health News:Push to Walk Participates in Macy’s Ninth Annual “Shop For A Cause” 3
... , , , , ... Pioneering Innovation Award today at the Centers for Disease Control and ... These organizations are being recognized for their work in advancing policies ... With rising rates of obesity in adults, particularly those ...
... ... consumers to be aware of non-approved cosmetic injections , ... (PRWEB) July 29, 2009 -- The Physicians Coalition ... products, touting everything from cellulite treatment to weight loss are not FDA approved, and ...
... CLEARWATER, Fla., July 29 BayCare Health System today announced ... To Work For by Florida Trend magazine . ... medium and large companies, were compiled from surveys of participating companies, employees ... the August issue of Florida Trend and on FloridaTrend.com. , ...
... , NEW ORLEANS, July 29 ... showing its pioneering spirit again by leading the way to making healthy ... , , Consumers in Tokyo will be the ... with the first store planned to open in 2010. Japan makes sense ...
... EMERYVILLE, Calif., July 29 Bionovo, Inc. (Nasdaq: ... the unmet needs in women,s health and oncology, today announced that ... Senior Vice President and CFO, will be presenting at the BMO ... EDT on Wednesday, August 5, 2009. The event will be held ...
... day cut risk in half in study of Finnish men ... associated with moderate- to high-intensity exercise appears to reduce the ... Finnish study included 2,560 men, aged 42 to 61, whose ... the men had a history of cancer, according to the ...
Cached Medicine News:Health News:CDC Recognizes Innovative Obesity Prevention and Control Initiatives With Weight of the Nation Awards 2Health News:CDC Recognizes Innovative Obesity Prevention and Control Initiatives With Weight of the Nation Awards 3Health News:CDC Recognizes Innovative Obesity Prevention and Control Initiatives With Weight of the Nation Awards 4Health News:Carboxytherapy and Mesotherapy Unproven, Warns The Physicians Coalition for Injectable Safety 2Health News:Carboxytherapy and Mesotherapy Unproven, Warns The Physicians Coalition for Injectable Safety 3Health News:BayCare Named to Top 100 Best Companies To Work For in Florida by Florida Trend Magazine 2Health News:BayCare Named to Top 100 Best Companies To Work For in Florida by Florida Trend Magazine 3Health News:Smoothie King Expansion Signals International Trend Toward Healthy Living 2Health News:Smoothie King Expansion Signals International Trend Toward Healthy Living 3Health News:Bionovo to Present at the BMO Capital Markets Ninth Annual Focus on Healthcare Conference 2
(Date:7/30/2014)... July 30, 2014  InnoPharma, Inc. today announced the ... generic equivalent of Zyprexa® injection), in Canada.  Olanzapine is ... behaviors in patients with schizophrenia or bipolar I mania. ... drug, InnoPharma has entered into an agreement with Sandoz ... will make, use, sell, market and distribute Olanzapine Injection ...
(Date:7/30/2014)... and PARIS , July 30, ... ) and Sanofi (EURONEXT: SAN and NYSE: ... ODYSSEY trials of alirocumab in people with hypercholesterolemia met ... from baseline in low-density lipoprotein cholesterol (LDL-C) at 24 ... an investigational monoclonal antibody targeting PCSK9 (proprotein convertase subtilisin/kexin ...
(Date:7/30/2014)... NEW YORK , July 30, 2014 ... products for oncology supportive care, announced that its novel ... featured in an article on OncLive.com titled, "Study Finds ... Neck Cancers."  Dr. Steve Sonis , a leading ... demand seen in the oncology community for evidence-based strategies ...
Breaking Medicine Technology:InnoPharma Announces Launch of Olanzapine for Injection, 10mg/vial in Canada 2Regeneron and Sanofi Report Positive Top-Line Results from Nine Phase 3 Trials of Alirocumab in People with Hypercholesterolemia 2Regeneron and Sanofi Report Positive Top-Line Results from Nine Phase 3 Trials of Alirocumab in People with Hypercholesterolemia 3Regeneron and Sanofi Report Positive Top-Line Results from Nine Phase 3 Trials of Alirocumab in People with Hypercholesterolemia 4Regeneron and Sanofi Report Positive Top-Line Results from Nine Phase 3 Trials of Alirocumab in People with Hypercholesterolemia 5Regeneron and Sanofi Report Positive Top-Line Results from Nine Phase 3 Trials of Alirocumab in People with Hypercholesterolemia 6Regeneron and Sanofi Report Positive Top-Line Results from Nine Phase 3 Trials of Alirocumab in People with Hypercholesterolemia 7Regeneron and Sanofi Report Positive Top-Line Results from Nine Phase 3 Trials of Alirocumab in People with Hypercholesterolemia 8Access Pharmaceuticals Featured On OncLive.com 2Access Pharmaceuticals Featured On OncLive.com 3
... /PRNewswire-Asia-FirstCall/ -- Golden Meditech Holdings ("Golden Meditech," 0801.HK, ... Bon International") today announced that the companies have ... strategic cooperation in Taipei.  Golden Meditech Holdings Chairman, ... International, Mr. Chu Powei, respectively represented and co-chaired ...
... BRUNSWICK, N.J., and LEIDEN, Netherlands, Feb. 17, 2011 ... (NYSE Euronext, Nasdaq: CRXL ; Swiss Exchange: CRX) today ... to acquire Crucell N.V. (Crucell) has been satisfied.  The initial offering ... a.m. New York time) on 16 February 2011.   ...
Cached Medicine Technology:Golden Meditech to Form Strategic Alliance with Long Bon International 2Golden Meditech to Form Strategic Alliance with Long Bon International 3Minimum Acceptance Condition Satisfied 2Minimum Acceptance Condition Satisfied 3Minimum Acceptance Condition Satisfied 4Minimum Acceptance Condition Satisfied 5Minimum Acceptance Condition Satisfied 6
A new flexible endoscope with an ultra dense optic fiber system. Its two working and irrigation channels and steering mechanism makes it ideal for a multipurpose use in neurosurgical endoscopy i.e. V...
... Performance Instrument System. It is the only ... electric power with the unparalleled high performance ... The advanced design of this instrument system ... cooling system, advanced control circuitry, and the ...
The XK-PRO 100 High Speed Drill System is a compact, lightweight design that offers new technological and performance standards for a combination of surgical procedures....
... The Legend Platinum is a compact ... 77,000 rpm at 120 psi/8 bar, ... of comparable size with noticeable noise ... design combines with an enhanced ergonomic ...
Medicine Products: