How to Experience Invisibility


Credit: Staffan Larsson

Ph.D. student Zakaryah Abdulkarim, M.D., shows how to create
the illusion of invisibility in the lab (photomontage).
Probably the most common cliche' writing teachers use is, "write what you know."

 Yet some of the greatest fiction ever written for any media is based on invisibility, a phenomena no one has yet to experience, as far as we know.  H.G. Wells Invisible Man and Frodo wearing the great ring in the Trilogy involve someone being invisible and how would someone experience that?  Yet the author's imagination fleshed out the experience based on conjecture in a way that it was believable.

 It's especially interesting that this is another case of a science fiction writer predicted future reality. 
In the longer report, the authors note that, "In H.G. Wells’s science fiction novel The Invisible Man (1897), the protagonist invents a method to change a body’s refractory index to that of air, rendering it invisible, and then he successfully carries out the procedure on himself (but he unfortunately fails to reverse it). Intriguingly, advances in materials science have demonstrated that invisibility cloaking of large-scale objects, not too dissimilar from what Wells envisioned, is becoming reality." 
Now you can experience the illusion of invisibility, based on a work at the Karolinska Institutet in Solna, Sweden.  The experiment involves wearing three-d goggles connected to a computer programmed to make your body disappear when you look down as shown in the photo above.

 What is interesting are the test subject's reactions to being invisible, such as when they are touched or threatened with a knife.  It's information you could use to communicate the experience to a reader or viewer based on you having been invisible yourself.  

 Besides, it sounds fun.

 Here's the report:
*  *  *  *  *


Scientists create the sensation of invisibility
The power of invisibility has long fascinated man and inspired the works of many great authors and philosophers. In a study from Sweden's Karolinska Institutet, a team of neuroscientists now reports a perceptual illusion of having an invisible body, and show that the feeling of invisibility changes our physical stress response in challenging social situations.

You Call This the Future?
The Greatest Inventions Sci-Fi
Imagined and Science Promised
by Nick Sagan
and Mark Frary
and Andy Walker

Click on image for details
The history of literature features many well-known narrations of invisibility and its effect on the human mind, such as the myth of Gyges' ring in Plato's dialogue The Republic and the science fiction novel The Invisible Man by H.G. Wells. Recent advances in materials science have shown that invisibility cloaking of large-scale objects, such as a human body, might be possible in the not-so-distant future; however, it remains unknown how invisibility would affect our brain and body perception.

In an article in the journal Scientific Reports, the researchers describe a perceptual illusion of having an invisible body. The experiment involves the participant standing up and wearing a set of head-mounted displays. The participant is then asked to look down at her body, but instead of her real body she sees empty space. To evoke the feeling of having an invisible body, the scientist touches the participant's body in various locations with a large paintbrush while, with another paintbrush held in the other hand, exactly imitating the movements in mid-air in full view of the participant.

"Within less than a minute, the majority of the participants started to transfer the sensation of touch to the portion of empty space where they saw the paintbrush move and experienced an invisible body in that position," says Arvid Guterstam, lead author of the present study. "We showed in a previous study that the same illusion can be created for a single hand. The present study demonstrates that the 'invisible hand illusion' can, surprisingly, be extended to an entire invisible body."

The study examined the illusion experience in 125 participants. To demonstrate that the illusion actually worked, the researchers would make a stabbing motion with a knife toward the empty space that represented the belly of the invisible body. The participants' sweat response to seeing the knife was elevated while experiencing the illusion but absent when the illusion was broken, which suggests that the brain interprets the threat in empty space as a threat directed toward one's own body.

In another part of the study, the researchers examined whether the feeling of invisibility affects social anxiety by placing the participants in front of an audience of strangers.

"We found that their heart rate and self-reported stress level during the 'performance' was lower when they immediately prior had experienced the invisible body illusion compared to when they experienced having a physical body," says Arvid Guterstam. "These results are interesting because they show that the perceived physical quality of the body can change the way our brain processes social cues."

The researches hope that the results of the study will be of value to future clinical research, for example in the development of new therapies for social anxiety disorder.

"Follow-up studies should also investigate whether the feeling of invisibility affects moral decision-making, to ensure that future invisibility cloaking does not make us lose our sense of right and wrong, which Plato asserted over two millennia ago," says principal investigator Dr. Henrik Ehrsson, professor at the Department of Neuroscience.

Related stories:
*  *  *  *  *
Story Source: Materials provided by Karolinska Institutet. Arvid Guterstam, Zakaryah Abdulkarim & Henrik Ehrsson. Illusory ownership of an invisible body reduces autonomic and subjective social anxiety responses. 23 April 2015, Scientific Reports

Comments

Post a Comment

Popular posts from this blog

On Being Humble: E.B. White was Right in Charlotte's Web

Image
It seems the best authors have a knack for accurately describing the personality traits of their characters.  For example, the character change experienced by Ebenezer Scrooge in Dickens A Christmas Carol is considered by research psychologists to be spot on for how the process of change works. How true to life was Scrooge's change? Is this ability to describe a character strictly from watching others?  Business writer Peter Drucker says in his semi-autobiographical book, Adventures of a Bystander that he and many of the other writers he knows are essentially bystanders, observing what is going on around them. Another example of a writer getting it right is E.B. White's popular children's book, Charlotte's Web.  Research psychologist Peter Samuelson and his team are researching the deeper meaning of humility.  Among their conclusions?  E.B. White displayed insight into humility and its underlying attributes. Here's the story : *  *  *  *  * The Two
Read more

Workout supplements: An emerging eating disorder in men?

Image
therewontbeanydoves.wordpress.com When developing a fictional character, you may not think about the character using large amounts of over-the-counter dietary supplements.  Especially a man who uses large amounts of workout supplements. While there has been widespread publicity on the dangers of the non-prescribed use of anabolic steroids, not much is said about legal, over-the-counter supplements.  Are there risks?  And if so, what are they?  There are several things the writer should consider. Supplement use is becoming an eating disorder with many men who use them to prepare for and recover from a workout. There is growing evidence of a link between muscle-building supplements and testicular cancer. There is evidence that over-the counter medications and supplements are the most common causes of drug-induced liver failure (a rare event, but still a risk.)  There is even evidence that, “certain popular herbal and dietary supplements can also cause liver damage,"
Read more

The Downside of Being 'Class Clown'

Image
Source:  Bart's Blackboard Down side of being dubbed 'class clown' Class clowns' off-task antics amuse and delight their classmates during first and second grades, making them the most sought-after playmates on the playground in early elementary school.  But by the time these mischievous boys are promoted to third grade, they plummet to the bottom of the social circle as classmates' disapproval of their behavior grows, a new study found. Perhaps most worrisome is that by third grade, playful boys may be internalizing others' negative assessments and begin viewing themselves as social failures, possibly setting them on a course for a host of poor academic and developmental outcomes, said researcher Lynn A. Barnett, an educational psychologist and professor of recreation, sport and tourism at the University of Illinois. These sudden reversals in playful boys' social fortunes from first to third grade may be classmates' mirroring of teachers
Read more

Remember faces but not names? You got it wrong.

Image
Source:   Daily Excelsior So, you think you're good at remembering faces, but terrible with names? New research has revealed we are actually better at remembering names than faces The cringe-worthy experience of not being able to remember an acquaintance's name leads many of us to believe we are terrible with names. However, new research has revealed this intuition is misleading; we are actually better at remembering names than faces. With the Christmas party season fast approaching, there will be plenty of opportunity to re-live the familiar, and excruciatingly-awkward, social situation of not being able to remember an acquaintance's name. This cringe-worthy experience leads many of us to believe we are terrible at remembering names. However, new research has revealed this intuition is misleading; we are actually better at remembering names than faces. The authors of the study, from the University of York, suggest that when we castigate ourselves f
Read more

How laughter leads to love.

Image
James Cagney rubs a grapefruit half in the face of Mae Clarke  in the classic flick, Public Enemy (1931), written by Kubec Glasmon and John Bright, adaptation for the screen by Harvey Thew.  Funny? Yes.  A rom-com?  Not really.  Great scene, though. Between romance novels and rom-com movies and television, there is a never ending, ever growing market for romance.  So what leads to romance?  Of everything, it is laughter.  Not at, but with.  So here's how it works:  Boy meets girl.  Boy gets the girl to laugh.  (Add a few tasty comedic or dramatic interludes), and viola, girl catches boy (after boy makes a complete horse's ass of himself,) and the happy couple goes giggling into the sunset.   Formulaic?  Very much so.   Greatly entertaining?  Very much so. Until kids, mortgage and divorce. . . but that's a story for later. Here's a report on laughter in romance, with a link to the full study in the attribution. *  *  *  *  * Laught
Read more