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A magician will instantly see the truth behind any colleague’s illusion. But we have a bit of an advantage: We know we are being fooled. Scientists are instinctive doubters who employ a rigorous method to zero in on the truth, but they aren’t necessarily trained to expect deception by subjects and collaborators.
We can’t make magicians out of scientists — we wouldn’t want to — but we can help scientists “think in the groove” — think like a magician. And we should.
For most of my life I’ve pecked away at a certain type of swindler: faith-healers, mystics, mind-readers. Those of a certain age may remember my appearances on The Tonight Show with Johnny Carson — a skilled amateur magician himself who introduced my exposure of flummery to a huge television audience.
Mine was a lonely voice back then, but I’m not alone anymore. The immensely talented and popular Penn & Teller long ago joined me as foes of harmful deception, along with other magicians; the president of my foundation, D.J. Grothe, has a background in magic, and many of our associates are professional magicians, as well. They all agree with me that the Society of American Magicians and the International Brotherhood of Magicians should re-establish their once very active investigations of the fakers who claim supernatural powers.
It’s not something that is generally done, or maybe at all – I’d love to see one funding grant that has a line item for the services of a magician, if somebody out there has one. But it is long overdue that my peers in the conjuring profession try to take a more active role in the elimination of nonsense science by joining forces with scientists, and that scientists be open to the proposition.
Please bear with me while I offer you a peek behind the curtain, a cursory glance at what we magicians are — and aren’t. First, we’re entertainers, actors, showbiz people who have as our primary objective the delight of our audiences. We’re deceivers, yes, taking on roles and characters to express our art, just as any actor does.
We are not scientists — with a few rare but important exceptions, like Ray Hyman and Richard Wiseman. But our highly specific expertise comes from knowledge of the ways in which our audiences can be led to quite false conclusions by calculated means — psychological, physical and especially sensory, visual being rather paramount since it has such a range of variety.
As the evenings get darker and the first hint of winter hangs in the air, the western world enters the season of the dead. It begins with Halloween, continues with All Saints’ and All Souls’ days, runs through Bonfire Night – the evening where the English burn effigies of historical terrorists – and ends with Remembrance Day. And through it all, Britain’s mediums enjoy one of their busiest times of the year.
People who claim to contact the spirit world provoke extreme reactions. For some, mediums offer comfort and mystery in a dull world. For others they are fraudsters or unwitting fakes, exploiting the vulnerable and bereaved. But to a small group of psychologists, the rituals of the seance and the medium are opening up insights into the mind, shedding light on the power of suggestion and even questioning the nature of free will.
Humanity has been attempting to commune with the dead since ancient times. As far back as Leviticus, the Old Testament God actively forbade people to seek out mediums. Interest peaked in the 19th century, a time when religion and rationality were clashing like never before. In an era of unprecedented scientific discovery, some churchgoers began to seek evidence for their beliefs.
Salvation came from two American sisters, 11-year-old Kate and 14-year-old Margaret Fox. On 31 March 1848, the girls announced they were going to contact the spirit world. To the astonishment of their parents they got a reply. That night, the Fox sisters chatted to a ghost haunting their New York State home, using a code of one tap for yes, two gaps for no. Word spread and soon the girls were demonstrating their skills to 400 locals in the town hall.
Within months a new religion had emerged – spiritualism – a mixture of liberal, nonconformist values and fireside chats with dead people. Spiritualism attracted some of the great thinkers of the day – including biologist Alfred Russel Wallace and Sir Arthur Conan Doyle, who spent his latter years promoting spiritualism in between knocking out Sherlock Holmes stories. Even the admission of the Fox sisters in 1888 that they had faked it all failed to crush the movement. Today spiritualism thrives in more than 350 churches in Britain.
Last week I spent 40 minutes with a telephone spiritualist who passed on messages from four dead people. Like all mediums, she was skilled at cold reading – the use of probable guesses and picking up of cues to steer her in the right direction. If she hit a dud – the suggestion that she was in the presence of a 40-year-old uncle of mine – she quickly widened it out. The 40-year-old became an older person who felt young at heart. And then someone who was more of an uncle figure. She was also skilled at the Barnum effect – the use of statements that tend to be true for everyone.
Among dozens of guesses and misses, there was just one hit – the correct name of a dead relative. Their relation to me was utterly wrong, as were details of their health. But the name was right and, even though it was a common name among that person’s generation, it was a briefly chilling moment.
Professor Richard Wiseman, a psychologist and magician, says my response to this lucky guess is typical. People tend to remember the correct details in a seance but overlook statements or events that provide no evidence of paranormal powers.
Wiseman’s work has also shown that we are all extremely susceptible to the power of suggestion.
According to a 2005 Gallup poll, 37 percent of Americans believe in haunted houses, and according to a 2013 HuffPost/YouGov poll, 45 percent believe in ghosts. These are surprising numbers, but the next time you hear a spooky sound, don’t call the Ghostbusters—get a scientist instead. Behind every shadow, poltergeist, and disembodied voice, there’s a perfectly rational explanation.
Frightened witnesses all over the world have seen the shadow people. These dark beings are glimpsed out of the corner of the eye only to vanish when confronted. Many believe them to be demons, some think they’re astral bodies, and some say they’re time travelers, here for a second and gone. However, some researchers have a more shocking theory.
When Swiss scientists electrically stimulated an epileptic patient’s brain, things got really spooky. The patient reported a shadow person sitting behind her, copying her every move. When she sat up, it also sat up. When she bent forward and grabbed her knees, it reached around her body and held her. The doctors then told her to read a card, but the shadow person tried to take it out of her hand.
What happened was the scientists had stimulated the left temporoparietal junction, the part of the brain that defines the idea of self. By interfering with the area that helps us tell the difference between ourselves and others, the doctors screwed up the brain’s ability to understand its own body, thus leading to the creation of a copycat shadow person. Researchers are hoping this is the key to understanding why so many people, both schizophrenic and healthy, encounter shadow beings and other creatures like aliens.
The Spiritualist movement was pretty big in the 1840s and 1850s. It provided a way for people to talk to their dead loved ones. One method of communication was the Ouija board. Still popular today, the board was covered in letters, numbers, and simple words (like “yes” or “no”). People would then place their hands on a wooden piece called a planchette and ask the spirits a question. A ghost would respond by moving the planchette from letter to letter, spelling out a response (or unleashing Captain Howdy).
Another creepy method for interacting with spirits was table tilting. During a séance, people would gather round a table and place their hands on the tabletop. To everyone’s surprise, the table would start moving by itself. It might tilt up on one leg, levitate off the ground or scoot around the room.
Con men were definitely involved in some of these incidents, but were all these encounters frauds? Renowned physicist Michael Faraday wanted to find out. Through clever experimentation, Faraday discovered that the tables were often moving thanks to the ideomotor effect. This is when the power of suggestion causes our muscles to move unconsciously. People expected a table to move so they unintentionally moved it. A similar event took place in 1853 when four doctors held an experimental séance. When they secretly told half the participants the table would move to the right and half it would move left, the table didn’t budge. But when they told everyone it would move in one direction, the ideomotor effect struck again! This same principle applies to the Ouija board. It’s our own muscles that are doing the spelling, not the spirits.
After seeing a gray ghost near his desk, researcher Vic Tandy was worried his laboratory might be haunted. But the next day, Tandy made an interesting discovery. While preparing for a fencing match, Tandy placed his sword in a vise. He then noticed the blade was vibrating on its own. All of a sudden, everything clicked. He realized the force causing his sword to shake was the same force haunting his lab. Vic Tandy was dealing with infrasound.
Humans can hear sounds up to 20,000 Hertz, but we’re unable to detect anything lower than 20 Hz. These “silent” noises are called infrasound, and while we can’t hear them, we can feel them in the form of vibrations. Dr. Richard Wiseman says we can feel these waves, especially in our stomachs, and this can create either a positive feeling (such as awe) or a negative feeling (such as unease). In the right surroundings (see “creepy house”), this might create a sense of panic.
Infrasound can be produced by storms, wind, weather patterns, and even everyday appliances. Returning to Vic Tandy, after witnessing his wobbling sword, he learned that a new fan had been installed in his laboratory, and sure enough, it was issuing vibrations of about 19 Hz. Since our eyeballs have a resonant frequency around 20 Hz, the infrasound was vibrating Tandy’s eyeballs and creating images that weren’t really there. When Tandy turned off the fan, presto: no more ghost.
Similarly, Dr. Wiseman believes these vibrations are responsible for paranormal activity in “haunted” locations. For example, when investigating two underground sites, he discovered evidence of infrasound coming from the traffic overhead. Wiseman thinks this explains the ghostly figures and creepy footsteps in these areas, proving there’s nothing good about these vibrations.
What do witch doctors and Shirley MacLaine have in common? They’re all big into channeling! Channeling is one of mankind’s oldest attempts to reach the spirit world. The idea is to clear the mind, connect with some sort of cosmic consciousness and let a centuries-old spirit possess your body, which doesn’t sound creepy at all. The shamans of ancient religions were believed to channel the dead, TV psychic John Edward says he can speak to those who’ve crossed over, and medium J.Z. Knight claims she channels a spirit named Ramtha, a 35,000-year-old spirit from Atlantis. Obviously, there are quite a few frauds in the channeling community, but what about the people who sincerely believe in what they’re doing?
The answer is automatism, an “altered state of consciousness” where people say things and think things they’re not aware of. So when a psychic clears his mind, he starts searching for a friendly spirit guide. The spirit guide is supposed to enter his body and then provide secret knowledge about the universe. When the psychic clears his mind, random ideas and images start popping up in his head, and the medium assumes these thoughts are coming from another entity. However, these ideas are just coming from his mind. Our brains are capable of coming up with all kinds of crazy stuff without any conscious effort on our part. How many times has something inspired you out of the blue? How many times have you had totally bizarre nightmares or daydreams? That’s not the work of an otherworldly guide. That’s your brain, working overtime all the time.
You’re exploring a creepy, run-down mansion in the middle of the night when suddenly the air grows cold. However, if you take a few steps to the left or right, the temperature returns to normal. This is what parapsychologists call a cold spot. According to ghost hunters, a cold spot is a sign of paranormal activity. When a ghost has nothing better to do than appear out of thin air and scare people to death, it needs energy. So the ghost draws heat from its surroundings (including people) in order to manifest.
However, scientists have a much simpler (and much more boring) explanation. When skeptics investigate “haunted” houses, they usually find cool air entering the house through a chimney or window. But even if the room is sealed off, there’s still a perfectly rational explanation. Every object has its own temperature, and some surfaces are hotter than others. In an attempt to equalize the room temperature, the objects try to lose heat in a process called convection. This is where hot air rises, and cool air drops. Similarly, when dry air enters a humid room, the dry air sinks to the floor and the humid air rises to the ceiling. This swirling air will feel cool against a person’s skin, giving the impression of a cold spot. Next time you feel a ghostly presence, turn on the heater.
Via Richard Wiseman
Here are some great Colgate ads – can you see what is wrong with them?
To put you out of your misery…
In the first one the woman has one finger too many in her hand.
In the second one a phantom arm is floating there.
In the third one the man has only one ear.
Did you spot them?
Brought to you by Richard Wiseman
Click on the image. It will open in a new window. Focus on the crosshair in the center of the image. Can you see the celebrity faces morphing? Stop focusing on the crosshair to confirm the celebrity faces aren’t really morphing. :)
A great animation courtesy of Richard Wiseman :)
I love anything having to do with how the brain works. Fascinating stuff!!! Enjoy!!! :)
by Kyle Hil via randi.org
There is a pornographer lurking in some corner of your mind. He peeks out from behind the curtains of your consciousness without warning, and almost never at an acceptable time.
The lurking pornographer in your brain is ever vigilant, looking for patterns, for signs of nudity, and sometimes generating them out of nowhere. He is exceedingly good at what he does, and isn’t afraid to prove his power over your perception. Just like that, he can take a picture of Daniel Craig in a bathing suit and turn it obscene.
If anything, Craig is more covered than he was before, but still he must be nude in the new picture, or so the pornographer would have you believe. The pornographer is sly. He takes advantage in the slightest slip in shapes and curves to insert his nudity. One of his favorite techniques is called “bubbling,” a technique that reveals how our brains actually “see.”.
Breasts and Blind Spots
Stifled by the pornography-restricting tenets of his religion, a young Mormon took to Photoshop, or so the story goes. His attempt to fool God and circumvent his law resulted in “bubbling,” a trick clever enough that how it works hasn’t yet been answered.
You eye doesn’t see everything. Right now, there are innumerable photons hitting the photoreceptors all over your retina, except in the place where your optic nerve connects to it. This area is your blind spot, and it should show up as a rather large black dot in your vision, but it doesn’t. Why not?
As your brain matures, it learns from the world. Neuronal connections are formed and broken in accordance with the deluge of information your brain receives. Over time, your brain becomes adept at predicting the world, so much so that much of our conscious lives are spent only noticing when things aren’t going as predicted. For example, there was probably a time when you got out of the car and realized you have almost no recollection of the drive you just took. It seemed automatic because it was. Consciousness didn’t need to intrude during something so routine, so it didn’t. However, introduce a near-collision into your daily commute, and consciousness quickly steps up to handle the situation.
Based on all the shapes and colors and lines and lighting schemes that your brain has encountered, your cognition makes predictions about how things will look. The surprising part is that this “software” is even good enough to fill in areas that we in fact cannot see. There is no better example of this than the blind spot test.
Cover or close your right eye and look at the cross with your left eye. Move closer and closer to the screen (likely ~12 inches away) until you see the dot on the left disappear. This is your blind spot. This is where you aren’t getting any optical information, but merely the dot vanishes, not the world. No matter the background nor the pattern nor the shape, your brain will fill in the blind spot with what it sees around it, in this case the white screen. To prove to yourself how good the brain is at filling in the world, try this test involving multiple versions of the blind spot test.
The Easiest Assumption is Genitalia
The pornographer lurking in your brain has been especially aware of human nudity since your birth. A likely outcropping of evolutionary pressure on reproduction, he looks for the body parts we try to cover up at every turn. He is familiar with nudity, but not with swimsuits.
Like how the brain fills in the background in the blind spot test, your brain makes a prediction about what is behind the bubbling when all it can see is bare skin. To the brain, a continuation of bare skin is more likely than one of the infinite variations of bathing suit. Moreover, the unconscious isn’t nearly as bound by social convention—given the choice between a naked human and a clothed one, the assumption goes the pornographer’s way.
Bubbling gets its name from the clever use of circles to obscure people’s clothing in photos. But the technique isn’t as clever as you may think. Any way to cover all of the clothing on a person’s body while leaving the bare skin should produce a similar assumption of nudity. For example, comedy shows regularly blur out the genital regions of actors who aren’t actually naked, still producing the illusion. A black “censored” bar over the suit of Daniel Craig above would still seem risqué.
You can’t control your blind spot, and neither can you control the lurking pornographer. He is cemented in your subconscious, laboring away at any pattern or shape that could be construed as indecent. But he is only one of many pattern-seekers. He sees genitals, but others see faces.
So, don’t feel bad about where your mind goes, it’s just a product of a predicting and pattern-seeking brain. We fill in the blanks all the time, but sometimes it’s dirty.
Kyle Hill is the JREF research fellow specializing in communication research and human information processing. He writes daily at the Science-Based Life blog and you can follow him on Twitter.
“I’m Good Enough, I’m Smart Enough, and Doggone It, People Like Me!”
– Daily Affirmations With Stuart Smalley.
Self-help books are full of advice for thinking positively, and using affirmations to tell ourselves that the reality we wish to be true is in fact true. This is interesting because psychologists have discovered that people in general have a large positive cognitive bias – a wishful thinking bias. All other things being equal, we will tend to assume that what we wish to be true is actually true. Sometimes we can maintain this belief despite significant contradictory evidence.
It may be that this bias exists because it relieves cognitive dissonance. Essentially, it makes us feel better, and that may be sufficient. However, there is also a theory that such wishful or positive thinking is, to an extent, self-fulfilling. People who think they will be successful will take advantage of opportunities and work harder to make that success a reality. Expectations can even affect other people, the so-called Pygmalian effect. If teachers believe that a student will perform better, that expectation may improve the student’s performance.
Richard Wiseman points out, however, that visualizing the goal (“I am a success in my business”) does not work (so much for positive affirmations). What is helpful is visualizing the process by which a goal can be achieved.
Within the “New Age” spiritual community, however, this psychological discussion over the impact of positive or wishful thinking is all moot. Within this community there is the widely held belief, or at least claim, that wishful thinking does not just create a successful attitude – it actually alters reality. This belief reached its pinnacle, perhaps, in the widely successful book, The Secret. This book promoted what it called the “Law of Attraction” – that wishing something to be true attracted that very thing to you. Essentially the secret is that the universe will answer your wishes – so wish away.
This is literally a childish attitude. Children often behave as if asking hard enough of the universe for something might produce the thing wished-for. Most adults have learned that the universe does not work this way – or perhaps they have just learned to hide this childish desire that they still harbor. They use their better developed frontal lobes to rationalize what they wish to be true (manifesting as a positive cognitive bias). Reframing this wish-fulfillment desire as a “law” makes it sound a bit more respectable, however. The Secret, and other such nonsense, in essence just gave some adults permission to embrace their childhood wish-fulfillment fantasy.
What does all this have to do with the Higgs boson?
A recent article by Mike Adams on his website, Divinity Now (Exploring Conscious Cosmology) argues that the scientists who “discovered” the Higgs actually got the results they wished for through “intention” – the word used by believers to refer to wishing, again to make it sound a bit more respectable. And yes – that is the same Mike Adams of NaturalNews infamy – the crank site that promotes, in my opinion, all sorts of medical pseudoscience. Apparently Adams is branching out into consciousness pseudoscience.
MORE . . .
via Richard Wiseman
My pal and amazing psychologist Rob Jenkins has created this great illusion. The animation below shows the same image getting smaller (you might need to click on the image to get it to animate). However, at the start the women looks like she is looking to your left and at the end she appears to be looking to your right.
Do you know why it works?
via Discovery News
A study published last year in a scientific journal claimed to have found strong evidence for the existence of psychic powers such as ESP. The paper, written by Cornell professor Daryl J. Bem, was published in The Journal of Personality and Social Psychology and quickly made headlines around the world for its implication: that psychic powers had been scientifically proven.
Bem’s experiments suggested that college students could accurately predict random events, like whether a computer will flash a photograph on the left or right side of its screen. However scientists and skeptics soon questioned Bem’s study and methodology. Bem stood by his findings and invited other researchers to repeat his studies.
Replication is of course the hallmark of valid scientific research—if the findings are true and accurate, they should be able to be repeated by others. Otherwise the results may simply be due to normal and expected statistical variations and errors. If other experimenters cannot get the same result using the same techniques, it’s usually a sign that the original study was flawed in one or more ways.
Last year a group of British researchers tried and failed to replicate Bem’s experiments. A team of researchers including Professor Chris French, Stuart Ritchie and Professor Richard Wiseman collaborated to accurately replicate Bem’s final experiment, and found no evidence for precognition. Their results were published in the online journal PLoS ONE.
Now a second group of scientists has also replicated Bem’s experiments, and once again found no evidence for ESP. In an article forthcoming in The Journal of Personality and Social Psychology, researchers Jeff Galak, Robyn LeBoeuf, Leif D. Nelson, and Joseph P. Simmons, the authors explained their procedure: “Across seven experiments (N = 3,289) we replicate the procedure of Experiments 8 and 9 from Bem (2011), which had originally demonstrated retroactive facilitation of recall. We failed to replicate that finding. We further conduct a meta-analysis of all replication attempts of these experiments and find that the average effect size (d = .04) is no different from zero.” In other words there was no evidence at all for ESP. The paper, “Correcting the Past: Failures to Replicate Psi,” is available on the web page of the Social Science Research Network.
MORE . . .
Here is an interesting website where you can create your own tombstone! What do you think? Do you dare create your own tombstone? Have fun :)
I think you’ll like this :)
Robbins is a successful self-help guru with a schtick that depends upon the scientific illiteracy of his audience. After a session of telling people how to “unleash the power within” he demonstrates their new-found power by inviting them to walk barefoot over hot burning coals while thinking about cool moss. This is meant to demonstrate the power of mind over matter. This is, of course, nonsense.
The Hot Coal Deception
Many physicists have used the hot coal demonstration to teach a bit of elementary physics, as there is a very simple explanation for how people can walk over hot coals in their bare feet.
Keep Reading: Skepticblog » Firewalk Mishap.
Conventional wisdom has it that when people talk, the direction of their eye movements reveals whether or not they’re lying. A glance up and to the left supposedly means a person is telling the truth, whereas a glance to the upper right signals deceit. However, new research thoroughly debunks these notions. As it turns out, you can’t smell a liar by where he looks.
Researchers in the United Kingdom investigated the alleged correlation between eye direction and lying after realizing it was being taught in behavioral training courses, seminars and on the Web without the support of a shred of scientific evidence. The idea has its roots in a largely discredited 1970s theory called Neuro-Linguistic Programming (NLP), a set of techniques intended to help people master social interactions.