Navigation Links
How to leave your body
Date:2/20/2011

Leave your body and shake hands with yourself, gain an extra limb or change into a robot for a while. Swedish neuroscientist Henrik Ehrsson has demonstrated that the brain's image of the body is negotiable. Applications stretch from touch-sensitive prostheses to robotics and virtual worlds.

Ask a child if their hands belong to them and they will answer, "Of course!" But how does the brain actually identify its own body? And why do we experience our centre of awareness as located inside a physical body?

In a series of studies, neuroscientist Henrik Ehrsson of the Swedish medical university Karolinska Institutet has shown that the brain's perception of its own body can alter remarkably. Through the coordinated manipulation of the different senses, subjects can be made to feel that their body suddenly includes artificial objects or that they have departed their body entirely to enter another. His experiments have been published in Science and other leading scientific periodicals and journals, and have garnered considered international attention.

"By clarifying how the normal brain produces a sense of ownership of the body, we can learn to project ownership onto artificial bodies and simulated virtual ones, and even make two people have the experience of swapping bodies with one another," says Dr Ehrsson.

The research addresses fundamental questions about the relationship between mind and body, which have been the topic of theological, philosophical and psychological discussion for centuries but which have only recently been accessible to experimental investigation. The key to solving the problem is to identify the multisensory mechanisms through which the central nervous system distinguishes between sensory signals from the body and from its environment.

The research may have important implications in a wide range of areas, such as developing hand prostheses that feel more like real hands and the next generation of virtual reality applications, where the sense of self is projected onto computer-generated 'virtual bodies'.

Researchers are currently looking into what kind of bodies the brain can perceive as its own. The self can, for example, be transferred into a body of another sex, age and size, but not into objects such as blocks or chairs. One ongoing project with potential applications in robotics is examining if the perceived body can be shrunk to the size of a Barbie doll; another is studying if the brain can accept a body with three arms.

"This could give paralysed people a third prosthetic arm, which they would perceive as real," says Dr Ehrsson.


'/>"/>

Contact: Sabina Bossi
sabina.bossi@ki.se
46-70-614-6066
Karolinska Institutet
Source:Eurekalert

Related medicine news :

1. Mini-strokes leave hidden brain damage: Vancouver Coastal Health and UBC Research
2. Apology May Leave You Feeling Unsatisfied, Study Finds
3. One in 12 Fans Leaves Major Sports Events Drunk: Study
4. Brain Anomaly Leaves Woman Without Fear
5. Elderly Patients Who Get on Feet Leave Hospital Sooner
6. Alternative therapies may leave asthmatics gasping
7. For Ex-Smokers, Some Cigarette Cravings May Never Leave
8. Report shows federal poverty guidelines leave states seniors destitute
9. Mental health leaves most costly disability to Canadian employers
10. Leave July 4 Fireworks to the Pros
11. US dental schools leave graduates unprepared to screen for sleep disorders
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:10/13/2017)... ... October 13, 2017 , ... Many families have long-term insurance ... care insurance companies have a waiver for care if the client has a cognitive ... the family pays for care, is often waived, so the benefits from their insurance ...
(Date:10/13/2017)... ... October 13, 2017 , ... Ellevate Network, the leading network ... advocate for action towards gender equality at their inaugural Summit in New York City ... and reached a social audience of over 3 million. To watch the Mobilize Women ...
(Date:10/13/2017)... ... 13, 2017 , ... Yisrayl Hawkins, Pastor and Overseer at The House of ... popular and least understood books in the Holy Scriptures, Revelation. The Book of Revelation ... scholars for centuries. Many have tossed it off as mere rubbish, but Yisrayl Hawkins ...
(Date:10/13/2017)... Fairfax, VA (PRWEB) , ... October 13, 2017 ... ... provider of DevOps and Agile Software Development, has been awarded a contract by ... (EATS) Blanket Purchase Agreement (BPA) aims to accelerate the enterprise use of Agile ...
(Date:10/13/2017)... ... October 13, 2017 , ... “America On The Brink”: the ... “America On The Brink” is the creation of published author, William Nowers. Captain ... As a WWII veteran, he spent thirty years in the Navy. Following his ...
Breaking Medicine News(10 mins):
(Date:10/12/2017)... 12, 2017   Divoti USA will engrave ... the standard of the latest FDA requirements, which stipulates new criteria ... Anyone in need of Medical ID jewelry such as Medical ID ... are engraved in terms of the new FDA requirements . ... Divoti offers this dark mark ...
(Date:10/11/2017)... Holdings, Inc. ("Hill-Rom") (NYSE: HRC), today provided an update ... Puerto Rico , where the company manufactures ... Following a comprehensive onsite assessment, the ... temporary loss of power and minimal water damage due ... have resumed, and the company expects to return to ...
(Date:10/4/2017)... 4, 2017  South Korean-based healthcare product Development Company ... "cprCUBE" on Kickstarter. The device will educate the user ... with better efficiency compared to the dated and pricey ... on efficacy of the compression for a more informed ... goal to raise $5,000. ...
Breaking Medicine Technology: