Tag Archives: Pattern

The Zipf Mystery

Mind blown.

Spooky Coincidences?

Believers in conspiracy theories and the paranormal are more likely to see “illusory patterns”

By Emma Young via The British Psychological Society – Research Digest

Irrational beliefs – unfounded, unscientific and illogical assumptions about the world – are widespread among “the population of normal, mentally sane adults” note the authors of a new study in European Journal of Social Psychology. It’s been proposed that they arise from a mistaken perception of patterns in the world. But though this idea is popular among psychologists, there’s been surprisingly little direct evidence in favour of it. The new work, led by Jan-Willem van Prooijen at the Free University of Amsterdam, helps to fill the void.

Pattern perception is a crucial cognitive ability. It allows us to identify meaningful relationships between events – such as “red traffic light means danger” or “drinking water quenches thirst”. When people join the dots between events that are in fact unrelated (I wore red socks and aced my exam – they are “lucky socks”), they engage in so-called illusory pattern perception.

To explore whether an adherence to conspiracy theories or a belief in the supernatural really are grounded in illusory pattern perception, the researchers devised a series of studies.
First, they assessed belief in existing, well-known – and also fictitious – conspiracy theories in a group of 264 American adults. The participants were asked, for example, to indicate, on a scale of 1 to 9, how strongly they believed in the statement: “The US government had advance knowledge of the 9/11 attacks”. Their belief in the supernatural was evaluated using a scale that measured agreement with statements like “I think I could learn to read other people’s minds if I wanted to”.

When shown the results of a series of randomly generated coin tosses, people who scored relatively highly on these two scales were more likely to mistakenly perceive patterns – they believed that the series of heads and tails wasn’t random even though it was. “These findings are the first to directly suggest a relationship between belief in conspiracy theories and pattern perception, and [to] conceptually replicate this relationship for supernatural beliefs,” the researchers wrote.

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Related: Connecting the dots: Illusory pattern perception predicts belief in conspiracies and the supernatural

Coincidences: Remarkable or Random?

Most improbable coincidences likely result from play of random events. The very nature of randomness assures that combing random data will yield some pattern.

By Bruce Martin via The Committee for Skeptical Inquiry – CSI

“You don’t believe in telepathy?” My friend, a sober professional, looked askance. “Do you?” I replied. “Of course. So many times I’ve been out for the evening and suddenly became worried about the kids. Upon calling home, I’ve learned one is sick, hurt himself, or having nightmares. How else can you explain it?”

CoincidenceSuch episodes have happened to us all and it’s common to hear the words, “It couldn’t be just coincidence.” Today the explanation many people reach for involves mental telepathy or psychic stirrings. But should we leap so readily into the arms of a mystic realm? Could such events result from coincidence after all?

There are two features of coincidences not well known among the public. First, we tend to overlook the powerful reinforcement of coincidences, both waking and in dreams, in our memories. Non-coincidental events do not register in our memories with nearly the same intensity. Second, we fail to realize the extent to which highly improbable events occur daily to everyone. It is not possible to estimate all the probabilities of many paired events that occur in our daily lives. We often tend to assign coincidences a lesser probability than they deserve.

However, it is possible to calculate the probabilities of some seemingly improbable events with precision. These examples provide clues as to how our expectations fail to agree with reality.

Coincident Birthdates

Happy Birthday_150pxIn a random selection of twenty-three persons there is a 50 percent chance that at least two of them celebrate the same birthdate. Who has not been surprised at learning this for the first time? The calculation is straightforward. First find the probability that everyone in a group of people have different birthdates (X) and then subtract this fraction from one to obtain the probability of at least one common birthdate in the group (P), P = 1 – X. Probabilities range from 0 to 1, or may be expressed as 0 to 100%. For no coincident birthdates a second person has a choice of 364 days, a third person 363 days, and the nth person 366 – n days. So the probability for all different birthdates becomes:

equation

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Why People Believe Invisible Agents Control the World

A Skeptic’s take on souls, spirits, ghosts, gods, demons, angels, aliens and other invisible powers that be

Michael ShermerBy Michael Shermer via Scientific American

Souls, spirits, ghosts, gods, demons, angels, aliens, intelligent designers, government conspirators, and all manner of invisible agents with power and intention are believed to haunt our world and control our lives. Why?

Our human tendency to find meaningful patterns in meaningless noise causes us to see this face on Mars.

The answer has two parts, starting with the concept of “patternicity,” which I defined in my December 2008 column as the human tendency to find meaningful patterns in meaningless noise. Consider the face on Mars, the Virgin Mary on a grilled cheese sandwich, satanic messages in rock music. Of course, some patterns are real. Finding predictive patterns in changing weather, fruiting trees, migrating prey animals and hungry predators was central to the survival of Paleolithic hominids.

The problem is that we did not evolve a baloney-detection device in our brains to discriminate between true and false patterns. So we make two types of errors: a type I error, or false positive, is believing a pattern is real when it is not; a type II error, or false negative, is not believing a pattern is real when it is. If you believe that the rustle in the grass is a dangerous predator when it is just the wind (a type I error), you are more likely to survive than if you believe that the rustle in the grass is just the wind when it is a dangerous predator (a type II error). Because the cost of making a type I error is less than the cost of making a type II error and because there is no time for careful deliberation between patternicities in the split-second world of predator-prey interactions, natural selection would have favored those animals most likely to assume that all patterns are real.

But we do something other animals do not do. As large-brained hominids with a developed cortex and a theory of mind—the capacity to be aware of such mental states as desires and intentions in both ourselves and others—we infer agency behind the patterns we observe in a practice I call “agent­icity”: coincidences there are no_250pxthe tendency to believe that the world is controlled by invisible intentional agents. We believe that these intentional agents control the world, sometimes invisibly from the top down (as opposed to bottom-up causal randomness). Together patternicity and agent­icity form the cognitive basis of shamanism, paganism, animism, polytheism, monotheism, and all modes of Old and New Age spiritualisms.

Agenticity carries us far beyond the spirit world. The Intelligent Designer is said to be an invisible agent who created life from the top down. Aliens are often portrayed as powerful beings coming down from on high to warn us of our impending self-destruction. Conspiracy theories predictably include hidden agents at work behind the scenes, puppet masters pulling political and economic strings as we dance to the tune of the Bilderbergers, the Roth­schilds, the Rockefellers or the Illuminati. Even the belief that government can impose top-down measures to rescue the economy is a form of agenticity, with President Barack Obama being touted as “the one” with almost messianic powers who will save us.

There is now substantial evidence from cognitive neuroscience that humans readily find patterns and impart agency to them . . .

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