<p>An out-of-body experience has long been associated with a spiritual journey of the soul, floating out of the body.</p>
<p>New studies by neuroscientists seem to think it involves the inner ear canals (vestibular system) that control our spatial senses.</p>


Out-Of-Body Experience

<p>The new findings show that the out-of-body experiences may be an illusion of the brain due to a malfunctioning vestibular system. <span>The reporting of seeing 'tunnels of light' or 'spirals' is explained as a mismatch between information coming from the damaged ear system, and our visual sense.</span></p>
<p><i>While the new findings still have a few loopholes, the neuroscientists explain the 'birds-eye-view' of an out-of-body experience, the vision of us going out of our own perspective, as something the brain constructs automatically, due to conflicting signals of sensory information.</i></p>


Mind's Illusion

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<p>In a recent <a href="http://www.sciencedirect.com/science/article/pii/S0010945217301892?via%3Dihub#fig2">study</a> from France, <a href="http://lnia.fr/corps-et-cognition/lopez-christophe/">Christophe Lopez</a>, a neuroscientist at Aix-Marseille Universit&#233;, teamed up with Maya Elzi&#232;re, a doctor who sees patient with vestibular disorders. Some of these patients complained of dizziness, with physical causes that ranged from fluid leaking out of the inner ear to an infection of a nearby nerve. Of 210 patients who reported dizziness, 14 percent said they have had out-of-body experiences. In contrast, only 5 percent of healthy participants in the study reported such sensations.</p>
<p>Among the patients who had out-of-body experiences, some reported "being attracted by a spiral, like in a tunnel." Others described "entering my body, like in an envelope, from the top." Lopez says he thinks the out-of-body sensation is a result of the mismatch between information coming from the damaged vestibular system and the normal visual system.</p>
<p><a href="http://lnco.epfl.ch/olaf.blanke">Olaf Blanke</a>, a neuroscientist at Ecole Polytechnique F&#233;d&#233;rale de Lausanne, says that the study "puts previous anecdotal suggestions about a strong vestibular component in [out-of-body experiences] on firm grounds." Blanke, who has worked with Lopez previously but not on the current study, has also shown that electrically stimulating the brain area that integrates vestibular and visual information can <a href="http://www.nature.com/nature/journal/v419/n6904/full/419269a.html?foxtrotcallback=true">induce an out-of-body illusion</a>. Whether the perturbation is in the inner ear itself or the brain, the end result seems to be the same: a feeling of having defied physics and left one's body.</p>
<p>But there is still another mystery. While 14 percent of Elzi&#232;re's patients experiencing dizziness reported out-of-body experiences, 14 percent is not 100 percent. And healthy people appear to sometimes have such experiences, too. A vestibular disorder alone does not cause people to feel like they've left their bodies. "We believe out-of-body experiences might be a combination of several factors," says Lopez. He also surveyed patients about their mental states, and found that those with anxiety and depression in addition to dizziness were more likely to have out-of-body experiences.</p>
<p><a href="http://www.lancaster.ac.uk/psychology/people/jason-braithwaite">Jason Braithwaite</a>, a psychologist at Lancaster University, has found that people who have other perceptual anomalies-like feeling the unexplained presence of another person or a body part changing shape-are also <a href="http://linkinghub.elsevier.com/retrieve/pii/S0010945210001486">more likely to report out-of-body experiences</a>.</p>
<p>The out-of-body experience may have to do with a specific way the brain tries to make sense of a space. One way to explain this, says Braithwaite, is that your brain automatically builds a bird's-eye view of the space around you. Usually, you see things from your own perspective. But when something perturbs the brain and it can't make sense of different streams of sensory information, this bird's-eye model of the world may take over.</p>
<p>To Braithwaite, studying out-of-body experiences gets at the big questions of self and consciousness. "Twenty or thirty years ago, psychology thought consciousness research was a flaky thing, like you get your meditation mat out and light your joss sticks," he says. (The reaction of Monroe's psychologist friend to out-of-body experiences suggests as much.) But, says Braithwaite, "aberrant experiences in all their forms and flavors have a great deal to teach scientists and philosophers about the nature of human experiences, even when they're wacky and wild."</p> 
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<p> <a href="https://www.theatlantic.com/author/sarah-zhang/">Sarah Zhang</a> is a staff writer at <em>The Atlantic.</em> </p> 
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In a recent study from France, Christophe Lopez, a neuroscientist at Aix-Marseille Université, teamed up with Maya Elzière, a doctor who sees patient with vestibular disorders. Some of these patients complained of dizziness, with physical causes that ranged from fluid leaking out of the inner ear to an infection of a nearby nerve.

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Out-Of-Body Experience

Mind's Illusion

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