Children exhibit a form of magical thinking by about 18 months, when they begin to create imaginary worlds while playing. By age 3, most know the difference between fantasy and reality, though they usually still believe (with adult encouragement) in Santa Claus and the Tooth Fairy. By age 8, and sometimes earlier, they have mostly pruned away these beliefs, and the line between magic and reality is about as clear to them as it is for adults.
It is no coincidence, some social scientists believe, that youngsters begin learning about faith around the time they begin to give up on wishing. “The point at which the culture withdraws support for belief in Santa and the Tooth Fairy is about the same time it introduces children to prayer,” said Jacqueline Woolley, a professor of psychology at the University of Texas. “The mechanism is already there, kids have already spent time believing that wishing can make things come true, and they’re just losing faith in the efficacy of that.”
If the tendency to think magically were no more than self-defeating superstition, then over the pitiless history of human evolution it should have all but disappeared in intellectually mature adults.
Yet in a series of experiments published last summer, psychologists at Princeton and Harvard showed how easy it was to elicit magical thinking in well-educated young adults. In one instance, the researchers had participants watch a blindfolded person play an arcade basketball game, and visualize success for the player. The game, unknown to the subjects, was rigged: the shooter could see through the blindfold, had practiced extensively and made most of the shots.
On questionnaires, the spectators said later that they had probably had some role in the shooter’s success. A comparison group of participants, who had been instructed to visualize the player lifting dumbbells, was far less likely to claim such credit.
In another experiment, the researchers demonstrated that young men and women instructed on how to use a voodoo doll suspected that they might have put a curse on a study partner who feigned a headache. And they found, similarly, that devoted fans who watched the 2005 Super Bowl felt somewhat responsible for the outcome, whether their team won or lost. Millions in Chicago and Indianapolis are currently trying to channel the winning magic.
The researchers suggest that sometimes magical thinking serves us well:
For people who are generally uncertain of their own abilities, or slow to act because of feelings of inadequacy, this kind of thinking can be an antidote, a needed activator, said Daniel M. Wegner, a professor of psychology at Harvard. (Dr. Wegner was a co-author of the voodoo study, with Kimberly McCarthy of Harvard and Sylvia Rodriguez of Princeton.)
“I deal with students like this all the time and I say, ‘Let’s get you overconfident,’ ” Dr. Wegner said. “This feeling that your thoughts can somehow control things can be a needed feeling” — the polar opposite of the helplessness, he added, that so often accompanies depression.
The article just touches on the larger evolutionary issue of why we believe. I recently re-read Michael Shermer's book, How We Believe, where he suggests that humans evolved a "belief engine" that was closely related to our ability to see and remember patterns everywhere. The ability to observe and remember what it took to be successful to hunt for food or grow crops allowed our ancestors to fill in the gaps of their unknowing by seeing an event (like an approaching storm cloud) and then imagining what was about to happen (it was going to rain so they ought to take shelter). This highly useful pattern-making function sometimes also enabled them to see things that were not there (ghosts) and imagine causes and outcomes not supported by the evidence. But perhaps it was, and is, useful to the human psyche and spirit to believe in "magic."
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