Navigation Links
Phantom limb pain relieved when amputated arm is put back to work
Date:3/10/2014

People who lose an arm or a leg often experience phantom sensations, as if the missing limb were still there. Seventy per cent of amputees experience pain in the amputated limb despite that it no longer exists.

Phantom limb pain can be a serious chronic and deteriorating condition that reduces the quality of the persons life considerably. The exact cause of phantom limb pain and other phantom sensations is yet unknown.

Different treatment methods

Phantom limb pain is currently treated with several different methods. Examples include mirror therapy, different types of medication, acupuncture and hypnosis. In many cases, however, nothing helps.

This was the case for the patient that Chalmers researcher Max Ortiz Catalan selected for a case study of the new treatment method he has envisaged as a potential solution.

The patient lost his arm 48 years ago, and had since that time suffered from phantom pain varying from moderate to unbearable. He was never entirely free of pain.

Drastically reduced pain

The patients pain was drastically reduced after a period of treatment with the new method. He now has periods where he is entirely free of pain, and he is no longer awakened by intense periods of pain at night like he was previously.

The new method uses muscle signals from the patients arm stump to drive a system known as augmented reality. The electrical signals in the muscles are sensed by electrodes on the skin. The signals are then translated into arm movements by complex algorithms. The patient can see himself on a screen with a superimposed virtual arm, which is controlled using his own neural command in real time.

"There are several features of this system which combined might be the cause of pain relief" says Max Ortiz Catalan. "The motor areas in the brain needed for movement of the amputated arm are reactivated, and the patient obtains visual feedback that tricks the brain in
'/>"/>

Contact: Krister Svahn
krister.svahn@sahlgrenska.gu.se
46-031-786-3869
University of Gothenburg
Source:Eurekalert

Page: 1 2

Post Your Comments:
*Name:
*Comment:
*Email:
(Date:8/28/2014)... 25 million kilometres of new roads will be built ... into Earth,s last wildernesses, where they bring an influx ... Now, an ambitious study has created a ,global roadmap, ... to balance the competing demands of development and environmental ... layer that estimates that natural importance of ecosystems and ...
(Date:8/28/2014)... the world to Global Warming, has called for atmospheric ... He says that Carbon Capture, combined with limits on ... global warming getting out of control over the next ... the call during his presentation to the International Carbon ... to discuss Carbon Capture and Storage. , He ...
(Date:8/28/2014)... Biologists at Ludwig-Maximilians-Universitaet (LMU) in Munich have assigned ... genus of predatory arthropods. These animals lived in ... than related forms found in Jurassic strata. ... their shallow marine habitat and were fossilized some ... other denizens of the Silurian seas although ...
Breaking Biology News(10 mins):Study shows where on the planet new roads should and should not go 2Study shows where on the planet new roads should and should not go 3Global warming pioneer calls for CO2 to be taken from atmosphere and stored underground 2Paleontology: Oldest representative of a weird arthropod group 2
... Tech scientists contributed by invitation to an international ... Senegal, to identify strategies for the control of ... year, locusts stripped fields of crops and trees ... and food supply loss. , Larry Vaughan, associate ...
... Two Scandinavian studies have provided further evidence that ... , The studies, published online today (Thursday 28 ... Reproduction, suggest that environmental pollutants could be changing ... Y (sex determining) chromosomes and that they could ...
... accurate imaging technique have shed light on the tiny movements ... motors cooperate in a delicate choreography of steps, rather than ... imagined. , "We discovered that two molecular motors -- ... though they want to move the same cargo in opposite ...
Cached Biology News:Scientists discuss improved biopesticides for locust control in West Africa 2How the environment could be damaging men's reproductive health 2How the environment could be damaging men's reproductive health 3How the environment could be damaging men's reproductive health 4Molecular Motors Cooperate In Moving Cellular Cargo, Study Shows 2
(Date:8/29/2014)... York (PRWEB) August 29, 2014 ... at $5.6 billion in 2019. It is expected ... 2013 to 2019, and was valued at $1.8 ... published by Transparency Market Research. , For more ... http://www.transparencymarketresearch.com/companion-diagnostics-market.html . , The research report, titled ...
(Date:8/29/2014)... NY (PRWEB) August 29, 2014 Local ... Hills Veterinary Hospital are seeking candidates to participate in ... with osteoarthritis. The ultimate goal of this study ... stem cells into one or two arthritically affected joints ... joints. , Candidates for the current investigational study ...
(Date:8/29/2014)... Boston, MA, San Antonio, TX (PRWEB) August 29, ... audited, ISO 9001:2008 and ISO 13485:2003 certified, GAMP® ... it has been awarded an international Phase II ... patients with non-Hodgkin’s lymphoma. , Throughout this trial, ... services including, but not limited to, protocol and ...
(Date:8/28/2014)... MA (PRWEB) August 28, 2014 “This kit ... test to screen from 0 to 150 ppb,” said Mark ... is a significant benefit to plant owners and USDA-GIPSA inspection ... and other commodities. Testing can take place in a matter ... only can the plant test the feed and grain before ...
Breaking Biology Technology:Companion Diagnostics Market to Hit $5.6 Billion in 2019: Transparency Market Research 2Companion Diagnostics Market to Hit $5.6 Billion in 2019: Transparency Market Research 3Burnt Hills Veterinary Hospital Seeks Candidates for an Investigational Study of Stem Cells for Dogs with Arthritis 2Intrinsic Imaging Awarded Phase II Clinical Trial to Assess New Treatment for Non-Hodgkin’s Lymphoma 2
... Wireless Facilities, Inc. , a global ... communication networks, technology networks and security systems, announced today ... and deployment services for the City of Madison, Wisconsin's ... company Cellnet, and in coordination with Madison Gas & ...
... -- A former paper converting plant in this southwestern Wisconsin ... push to become a major global player in radio frequency ... various types of labels and thermal transfer ribbons ... by the technology. The labels are intended to add efficiencies ...
... CHICAGO Anyone following this column over the last few ... allow me to arrange information into tidy boxes in some ... sense out of the information for myself). While my list ... about how lists could be used to create awareness and ...
Cached Biology Technology:Wisconsin plant is part of NCR's global RFID initiative 2Wisconsin plant is part of NCR's global RFID initiative 3Wisconsin plant is part of NCR's global RFID initiative 4Though Weakening, Biotech IPO Market Still Viable, Burril & Co. Says 2Though Weakening, Biotech IPO Market Still Viable, Burril & Co. Says 3Though Weakening, Biotech IPO Market Still Viable, Burril & Co. Says 4
... inch long PYREX NMR tubes are made from ... valves, and vacuum racks. They are designed for ... 500MHz. They have an O.D. of 4.97 + ... These NMR tubes can be used with the ...
... dye for nucleic acid electrophoresis in ... sequencing. Preparation Quantity Equivalency: A final ... 2% stock solution can be made ... comp: Dye content ~ 75% ...
Preparation TW--Compatibility: Push-on end cap seals suitable up to 70 C only -Hybridization Tube for Model HB-1D -Comp Dim: 200 80 mm -Material: borosilicate glass -Mfr Desig: Techne FHB-12...
... Gel Extraction Kit combines silica- binding technology with ... format. DNA fragments of interest are extracted from ... gel. The Gel Solubilization Solution can dissolve an ... TBE or TAE buffer. Extracted DNA fragments selectively ...
Biology Products: