Navigation Links
Using tools requires that the brain is able to control movements
Date:4/20/2009

Milan, Italy, 20 April 2009 - Our ability to use objects and tools to perform actions is essential to our daily activities, and it is developed to a level that is unique to our species. In a study performed by a scientific team of the French National Center for Scientific Research (CNRS) and the Paris Descartes University, published by Elsevier in the April 2009 issue of Cortex (www.elsevier.com/locate/cortex), researchers have found that brain-lesioned patients who have difficulties using familiar objects and tools in their usual context (e.g. cutting paper with scissors) may also be impaired at controlling the movement of an object in the context of simpler movements such as pointing at a target.

Patients suffering from apraxia, a neurological syndrome caused by lesions in the left hemisphere of the brain, have difficulties executing complex movements, including tool use gestures. In this study, the authors compared the performance of apraxics to that of other patients suffering from left cerebral lesion but showing no sign of apraxia, on a task requiring them to point at targets with a stick. Apraxics performed significantly worse than control patients, committing larger errors and sometimes failing to anticipate the changes in movement coordination imposed by the use of a long object to point at a target within hand reach.

Apraxia is often thought to be due to a loss in the ability to translate memories of well-learned gestures into a specific sequence of movements. With these new findings, the authors suggest that some of those patients are also impaired in more elementary processes that allow the incorporation of an object as a functional extension of their limb into their body coordination.


'/>"/>

Contact: Valeria Brancolini
v.brancolini@elsevier.com
39-288-184-260
Elsevier
Source:Eurekalert

Page: 1

Related medicine news :

1. Yashoda Cancer Institute Treats First Patient in India Using RapidArc Radiotherapy Technology
2. Using Public Relations to Launch, Grow and Extend Your Brands
3. Physicians "Get Smart" - Number of Docs Using Smartphones Surges to 64% in 2009
4. K-State engineers create DNA sensors that could identify cancer using material only one atom thick
5. Cancer-Causing Toxins Detected in Fluoride Chemicals, Says NYS Coalition Opposed to Fluoridation
6. First Patients Treated in India Using CyberKnife Radiosurgery
7. Doctors at Henry Ford Health System Treat Ovarian, Prostate, Lung, and Other Forms of Cancer Using Novalis Tx(TM) Platform for Image-Guided Radiosurgery
8. Study Links Reduced Use of Mental Health Facilities, Nursing Homes and Other Public Services to "Smart Investments" in Supportive Housing
9. Healthcare Facilities Focusing on Affordability, Dependability
10. Public Housing for Homeless Alcoholics Saves Money
11. Prostate Cancer Patients in US and Europe Receive Treatments Using Enhanced Seed Prostate Brachytherapy Software
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:4/21/2017)... ... 2017 , ... Dudnyk has announced the launch of its new brand identity, ... potential of specialty and orphan brands can only be achieved when the needs and ... Effect is at the heart of a true partnership between our agency and our ...
(Date:4/21/2017)... ... April 21, 2017 , ... Crossover Symmetry , ... , an active lifestyle company that provides Human Performance Training and education to ... offers, first responders, military officers and others in service through the development and ...
(Date:4/21/2017)... UK (PRWEB) , ... April 21, 2017 , ... ... for Enterprise in the category of International Trade, the UK’s most prestigious award ... international trade, which represents 95% of total revenues and has grown by a ...
(Date:4/21/2017)... ... ... Yisrayl Hawkins, Pastor and Overseer at The House of Yahweh in Abilene, Texas, wrote an ... crisis with solution to peace plan. Yisrayl says war has never brought peace and he ... the Creator Himself. , Yisrayl says war drums are beating all over the media ...
(Date:4/21/2017)... ... 21, 2017 , ... Indiana Fiber Network, LLC (IFN), the ... to Tele-Media Solutions. IFN is delivering Multi-Gigabit data rates as an upstream ... protect transport with 3GB Dual Access Internet access now available in their service ...
Breaking Medicine News(10 mins):
(Date:4/19/2017)... YORK , April 19, 2017 Global ... drainage devices are tubes used to remove excess liquid ... blood, serum, pus, urine, bile or lymph. Surgical drains ... of surgery such as orthopedics surgery, cardiovascular surgery, neurosurgery, ... is prophylactic post-surgery to prevent accumulation of fluid e.g. ...
(Date:4/19/2017)... , April 19, 2017 The Global ... Forecast to 2022 report has covered and analysed the potential ... information on market size, shares and growth factors. The report ... challenges and opportunities in the global market. ... Browse 152 Tables and Figures, 6 Major ...
(Date:4/19/2017)...  New research provides evidence that an old drug may ... study released today that will be presented at the ... Boston , April 22 to 28, 2017. ... disease, the oral drug levodopa has long been considered the ... the disease progresses, the effects of the medication can partially ...
Breaking Medicine Technology: