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Thread: ...............can I have an out-of-body experience?

  1. #1


    ...............can I have an out-of-body experience?

    How can I have an out-of-body experience?

    You may be familiar with out-of-body experiences (OBE) from a TV show or news story, or perhaps you've experienced one yourself. For centuries these strange phenomena have fascinated doctors, scientists, religious scholars and amateur theorists. Generally, OBEs are associated with illness or traumatic incidents, but on Aug. 24, 2007, British and Swiss researchers published studies in the academic journal Science describing how it may be possible to produce OBEs in healthy people.

    The experiments depended on figuring out what makes a person's brain know that he is located within his physical body. Is it primarily the sense of sight, or do several senses and other processes have to work together? If a person is able to step outside himself, look around a room and see his own body as an outsider, what would happen? Would he still feel located in his physical body or would his sense of self shift to where his point of view -- his "eyes" -- was positioned?

    To answer these questions, the British researchers at the University College London Institute of Neurology conducted two tests. In the first test, volunteers sat in chairs and wore video displays over their eyes. The display projected images from two cameras located about six feet behind the test subject. Each camera served as an eye, with one projecting on the left side of the display and the other on the right. The effect resulted in the participant seeing one image from a point of view six feet behind his own back.

    During an out-of-body-experience,
    people feel as if they observe
    their physical body from
    an outsider's perspective.

    A researcher then stood in front of the cameras so that he appeared to be next to the participant's "virtual body." From that position he touched the chests of the subject's real and virtual bodies at the same time with two plastic rods. The result was that the participants felt like they were in their virtual bodies, even though they felt the touch of the rod. Many described the experience as funny or strange.

    The second test used sweat sensors to gauge participants' emotional reactions. In view of the cameras, a researcher swung down a hammer at the participant's virtual body. The sensors showed that the participants were afraid they were actually going to be hit with the hammer.

    Researchers from Switzerland conducted the third test at the Laboratory of Cognitive Neuroscience at the Ecole Polytechnique Federale. Volunteers were shown one of three 3-D projections: a block, a dummy or the volunteer's own body. Someone then touched the volunteer's back while another person touched the back of the projection with a brush -- simultaneously in some cases. The researchers then blindfolded the volunteers, moved them backward and removed the blindfold. When asked to return to where they stood before, people who had had their backs touched simultaneously with the image of their body moved to where the projection had been -- not where they originally stood. Those who had observed the dummy or block being touched returned to the proper position.

    Real and Artificial Out-of-Body Experiences

    In an out-of-body experience, a person sees his body from a vantage point outside his physical self. OBEs are frequently associated with serious illness, accidents, seizures, near-death experiences or other traumatic events. As much as 10 percent of the population may at some point have an OBE [source: UCL News], though one expert on the subject claims it's only 5 percent [source:]. In any case, it's a phenomenon that's received attention in many different scientific disciplines, religions and metaphysical discussions.

    Several possible explanations exist for why OBEs occur during physical injury, illness or trauma:

    * A lack of oxygen alters brain activity.
    * The brain copes with trauma by "leaving" the body, helping a person to survive.
    * Stress causes various physical senses, including one's sense of physical self, known as proprioception, to become confused.

    Some people believe in a spiritual cause or that OBEs can be achieved deliberately, such as through hypnosis.

    So did the British and Swiss experiments produce genuine out-of-body experiences? Both experiments appeared to show that a sense of one's self depends on cooperation between the senses and that experimentation can radically disrupt this linkage.

    Past experiments have shown that the physical body plays an important role in how a person identifies his "self." Dr. Henrik Ehrsson, lead researcher on the UCL study, once conducted a study in which the brains of participants were tricked into thinking that a rubber hand was the participant's real hand.

    A lack of oxygen to the brain
    may cause OBEs.

    One of the researchers on the Swedish study, Dr. Olaf Blanke, said that their efforts produced something close to an out-of-body experience "but not the entire thing," adding that they were tricking people [Source: Baltimore Sun]. Unlike in a genuine out-of-body experience where a person believes that he is actually outside of his body, these participants still recognized the projected image as something "other." Still, the study showed how the brain can be tricked and how sensing one's own body can have a powerful influence on sense of self and physical location.

    Dr. Ehrsson believes his experiments produced authentic OBEs. He claimed that the study was the first of its kind to produce OBEs in healthy people. The study was also particularly important, he said, for its use of multi-sensory techniques and for establishing the physical self as a basis of consciousness [source: UCL News]. He added that "projecting" oneself onto a virtual body could have wide-ranging applications in producing more authentic virtual reality and video game simulations or in improving remotely performed surgeries [source: UCL News].

  2. #2
    Good & Interesting Info

  3. #3
    nice info man

  4. #4
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    informative...kool keep it up...

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