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The next time you cross your fingers or tell someone to break a leg, you may actually be bringing some luck.
Superstitious ways of bringing good luck are found in cultures around the world, and it turns out they may be ubiquitous for a very good reason: To some extent, superstitions work. New research shows that believing in, say, the power of a good luck charm can actually help improve performance in certain situations, even though the charm and event aren't logically linked.
This is what a team of psychologists at the University of Cologne in Germany report in the May issue of the journal Psychological Science. In a series of experiments employing tasks involving memory and motor skills, the scientists studied the effect of behavior and "object superstitions" – which rely on good luck charms – in college students.
Cross your fingers
The first experiment looked at the influence of the concept of good luck in a test of putting a golf ball. Experimenters handed participants a ball, and those who were told the ball was lucky tended to outperform those who weren’t.
In another experiment, participants were given a cube containing tiny balls and a slab with holes. The goal was to get as many balls in the holes as quickly as possible. Again, participants who were told, "I’ll cross my fingers for you," by the experimenter performed better.
The final two experiments involved a lucky charm brought by each participant. In a memory test and an anagram test, the participants who were permitted to keep their lucky charms with them performed better.
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