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:9/30/2014)... environment on Earth, but when the climate changes and ... limit. The amount of time needed to adjust to ... cope in the future, reveals a new study from ... scientific journal Proceedings of the Royal Society B ... levels of greenhouse gases in the atmosphere. The greenhouse ...
(Date:9/30/2014)... goes wrong with your muscles because of age, disease or ... is. That,s where a new research report published in the ... comes in. In the report, a team of scientists ... help scientists "see" which genes are active in an organ ... activity and that men have approximately 400 more active genes ...
(Date:9/30/2014)... 30, 2014) People who suffer from asthma may ... control their asthma besides properly taking medications and avoiding ... in the Annals of Allergy, Asthma and Immunology ... Allergy, Asthma and Immunology (ACAAI), asthma sufferers can learn ... The woman described in the Annals article improved her ...
Breaking Biology News(10 mins):Shape up quickly -- applies to fish, too! 2Scientists identify which genes are active in muscles of men and women 2Asthma symptoms kicking up? Check your exposure to air pollution 2
... HARBOR, N.Y. Many proteins do not function ... associate to form larger structures called protein complexes. ... ( www.cshprotocols.org/TOCs/toc5_09.dtl ) features a set of methods ... An additional featured article details the generation of viral ...
... Society (ACS) Weekly PressPac from the Office of ... peer-reviewed journals and Chemical & Engineering News ... American Chemical Society as the source for this ... ARTICLE #1 FOR IMMEDIATE RELEASE Gene ...
... the introduction of genetic material into a patient,s cells resulting ... years, it has been shown that gene therapy is a ... for which there is no attractive alternative therapy. Gene ... other diseases that affect heart, brain and even for cancer. ...
Cached Biology News:Protein analysis methods, viral vectors featured in Cold Spring Harbor Protocols 2American Chemical Society's weekly PressPac -- April 29, 2009 2American Chemical Society's weekly PressPac -- April 29, 2009 3American Chemical Society's weekly PressPac -- April 29, 2009 4American Chemical Society's weekly PressPac -- April 29, 2009 5American Chemical Society's weekly PressPac -- April 29, 2009 6Moving gene therapy forward with mobile DNA 2
(Date:9/30/2014)... Calif. , Sept. 30, 2014 FemCap ... women,s health announces its receipt of a patent No: ... menstrual cup has also received FDA clearance in the ... and the CE in Europe. This patent is related to ... with this issuance, the company is releasing FemmyCycle Teen, ...
(Date:9/30/2014)... (PRWEB) September 30, 2014 Lyme ... funder of Lyme disease research at universities, today announced ... focused on the identification, treatment and cure for Lyme ... had received the most applications in its history—over 20 ... , “While we were pleased to receive so many ...
(Date:9/30/2014)... UFP Technologies, a producer of ... recently introduced a custom insulated shipping container to ... new insulated shipper solves the issue of temperature ... Technologies’ BioShell is a universal storage container which ... and shipping. The insulated shipper keeps frozen BioShells ...
(Date:9/29/2014)... Each year in the US, ... attention. In the military, burn injury is a ... medical care. More than 800 service members sustained ... heal slowly, remain inflamed and often become infected, ... and functionally damaging. While developments in supportive care ...
Breaking Biology Technology:The FemmyCycle 2Lyme Research Alliance Awards Nearly $600,000 in New Grants 2Lyme Research Alliance Awards Nearly $600,000 in New Grants 3Lyme Research Alliance Awards Nearly $600,000 in New Grants 4UFP Technologies Introduces Insulated Shipping Container For Bulk Drug Transportation 2UFP Technologies Introduces Insulated Shipping Container For Bulk Drug Transportation 3Faster Healing with Fewer Scars 2
... Area Technical College is launching a major effort to ... colleges and high schools. The initiative will feature new ... better prepare qualified technicians to work in the fast ... Foundation (NSF) grant - the second such grant MATC ...
... - Alfalight, Inc. , a Madison-based manufacturer ... markets, has been awarded $1.4 million in funding for ... program, sponsored by the Defense Advanced Research Projects ... is to increase a laser's power conversion efficiency -- ...
... Days of summer. Business slows. Indeed, in Europe, where I ... of suspended animation that will last until the first of ... attention. Work's grasp weakens. , ,Or does it? , ,After ... Monday morning mountain in my inbox and a to-do list ...
Cached Biology Technology:Alfalight garners $1.4 million defense funding for diode program 2Leaving it all behind 2
SHEEP ANTI FLECAINIDE...
MOUSE ANTI HUMAN B-CELLS (FMC7):FITC Immunogen: HRIK cells - Human B-Lymphoblastoid line...
... are ideal for use in refrigerators, freezers, or liquid ... vibrant colors allow for color coding to project, user, ... drainage or promote cool air circulation. Supplied with 10 ... tubes. Box dimensions: 13 x 13 x ...
RABBIT ANTI BACTERIAL HISTIDASE...
Biology Products: