Navigation Links
Practice makes the brain's motor cortex more efficient, Pitt researchers say
Date:8/4/2013

PITTSBURGH, Aug. 4, 2013 Not only does practice make perfect, it also makes for more efficient generation of neuronal activity in the primary motor cortex, the area of the brain that plans and executes movement, according to researchers from the University of Pittsburgh School of Medicine. Their findings, published online today in Nature Neuroscience, showed that practice leads to decreased metabolic activity for internally generated movements, but not for visually guided motor tasks, and suggest the motor cortex is "plastic" and a potential site for the storage of motor skills.

The hand area of the primary motor cortex is known to be larger among professional pianists than in amateur ones. This observation has suggested that extensive practice and the development of expert performance induces changes in the primary motor cortex, said senior investigator Peter L. Strick, Ph.D., Distinguished Professor and chair, Department of Neurobiology, Pitt School of Medicine.

Prior imaging studies have shown that markers of synaptic activity, meaning the input signals to neurons, decrease in the primary motor cortex as repeated actions become routine and an individual develops expertise at a motor skill. The researchers found that markers of synaptic activity also display a marked decrease in monkeys trained to perform sequences of movements that are guided from memory an internally generated task rather than from vision. They wondered whether the change in synaptic activity indicated that neuron firing also declined. To examine this issue they recorded neuron activity and sampled metabolic activity, a measure of synaptic activity in the same animals.

All the monkeys were trained on two tasks and were rewarded when they reached out to touch an object in front of them. In the visually guided task, a visual target showed the monkeys where to reach and the end point was randomly switched from trial to trial. In the internally generated task the monkeys
'/>"/>

Contact: Anita Srikameswaran
SrikamAV@upmc.edu
412-578-9193
University of Pittsburgh Schools of the Health Sciences
Source:Eurekalert

Page: 1 2

Related biology news :

1. UNH researchers find African farmers need better climate change data to improve farming practices
2. Updates in Interventional Radiology accents emerging trends, practice growth
3. Research: Modern Portfolio Theory optimizes conservation practices
4. Turf study to monitor runoff, establish fertilizer management practices
5. Abortions are safe when performed by advanced practice nurses and physician assistants, study shows
6. Stronger support needed for healthy beverage practices in child care
7. Diverse bacteria on fresh fruits, vegetables vary with produce type, farming practices
8. Evolution Marketing Research Grows its Practice with Addition of Three Key Industry Professionals
9. New review sets international standards for best practice in fracture liaison services
10. Traditional ranching practices enhance African savanna
11. The loss of a protein makes jump the tumor to the lymph node
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:3/23/2015)... Mar. 23, 2015 NXT-ID, Inc. (NASDAQ: NXTD ) ... the growing mobile commerce market, announces its biometric payment technology, ... on CNBC television starting March 30 th . ... in New York markets. ... are excited about our new ad campaign following the recent ...
(Date:3/20/2015)... Conn. , March 20, 2015 NXT-ID, ... a biometric authentication company focused on the growing mobile ... smart wallet is one of the products featured in ... March 20th at 11:00 PM EST on the DIY ... to Las Vegas , site of ...
(Date:3/18/2015)... March 18, 2015 As mobile payments ... revolutionary smart wallets and apps continue to be introduced into ... in the mobile payment industry in focus today are:  NXT-ID, ... (NYSE: BABA ), Apple Inc. (NASDAQ: ... Facebook Inc. (NASDAQ: FB ) NXT-ID, ...
Breaking Biology News(10 mins):NXT-ID's Wocket Smart Wallet to Launch New CNBC Regional TV Ad Campaign 2NXT-ID's Wocket Smart Wallet to Launch New CNBC Regional TV Ad Campaign 3NXT-ID's Wocket Biometric Smart Wallet to Air on "I Want That" International CES Special 2NXT-ID's Wocket Biometric Smart Wallet to Air on "I Want That" International CES Special 3Revolutionary Smart Wallet & Mobile Payment Choices Change the Game for Consumers - Company Begins Shipping Newest Digital Wallet to Customers 2Revolutionary Smart Wallet & Mobile Payment Choices Change the Game for Consumers - Company Begins Shipping Newest Digital Wallet to Customers 3Revolutionary Smart Wallet & Mobile Payment Choices Change the Game for Consumers - Company Begins Shipping Newest Digital Wallet to Customers 4Revolutionary Smart Wallet & Mobile Payment Choices Change the Game for Consumers - Company Begins Shipping Newest Digital Wallet to Customers 5Revolutionary Smart Wallet & Mobile Payment Choices Change the Game for Consumers - Company Begins Shipping Newest Digital Wallet to Customers 6
... with water to produce hydrogen almost instantaneously, according to ... experiments, the scientists created spherical silicon particles about 10 ... reacted to form silicic acid (a nontoxic byproduct) and ... cells. The reaction didn,t require any light, heat ...
... working out the structure of a cell-killing protein produced ... , researchers stumbled on a bit of unusual biochemistry. ... different, three-dimensional ring structures in the protein, one of ... findings, reported in Nature Chemical Biology , should ...
... 2012) Wildlife Conservation Society scientists have documented a thriving ... grassland-dwelling herbivore with the trunk-like snout living in ... border. Using a combination of camera traps, ... WCS estimates at least 14,500 lowland tapirs in the ...
Cached Biology News:Just add water: How scientists are using silicon to produce hydrogen on demand 2Study: Odd biochemistry yields lethal bacterial protein 2Study: Odd biochemistry yields lethal bacterial protein 3Paradise found for Latin America's largest land mammal 2
(Date:4/16/2015)... Japan , April 16, 2015  Center ... University and Takeda Pharmaceutical Company Limited (Takeda) announced ... clinical applications of induced pluripotent stem cells in ... disorders and cancer immunotherapy. The "Takeda-CiRA Joint Program ... expedite multiple research projects for drug discovery and ...
(Date:4/16/2015)... 2015 Capillus, LLC announces plans ... network in Europe and Asia. The Miami-based medical ... Bermúdez, former Business Development Director of Svenson Group ... Mr. Bermúdez’s professional achievements include increasing the number ... also penetrating the Portuguese marketplace with centers in ...
(Date:4/16/2015)... IL (PRWEB) April 16, 2015 Regis ... the American Association for Cancer Research (AACR) annual meeting. ... Pennsylvania Convention Center, starting Saturday, April 18, in Philadelphia ... holds claim to title of the oldest and largest ... provides fellowships and grants, and partners with survivors to ...
(Date:4/16/2015)... April 16, 2015 The Council ... the prestigious 2015 Borlaug CAST Communication Award goes ... at Tuskegee University in Alabama. Award nominees must ... public presentations; and/or the use of television, radio, ... three areas. As a specialist in the field ...
Breaking Biology Technology:CiRA and Takeda Enter 10-year Collaboration on iPS Cell Research 2CiRA and Takeda Enter 10-year Collaboration on iPS Cell Research 3Capillus, LLC Extends Laser Hair Therapy Products to Europe and Asia 2Regis Technologies Joins American Association for Cancer Research Annual Meeting 2The 2015 Borlaug CAST Communication Award Goes to Channapatna Prakash 2
... Online brand protection firms could be the answer to a ... , ,The Internet does connect you with your customers ... and e-mails that could damage your reputation and sales. Here ... from the simple to the sophisticated, and suggestions for dealing ...
... Editor's note: As the director of technology programs for the ... is at the forefront of trends in information technology workforce ... the market need for courses that help IT professionals in ... part two next week. , , Scott Converse also ...
... Madison, Wis. - When Cytochroma , a ... acquired the Madison-based Proventiv Therapeutics last year, executives indicated ... $25 million in venture capital from Canadian and American ... from two Canadian funds. , ,The company, which says ...
Cached Biology Technology:Protecting your business against online brand abuse 2Protecting your business against online brand abuse 3Biotech with Madison ties raises $21M in capital 2