The Wall Street Journal:
Lying to yourself—or self-deception, as psychologists call it—can actually have benefits. And nearly everybody does it, based on a growing body of research using new experimental techniques.
Self-deception isn’t just lying or faking, but is deeper and more complicated, says Del Paulhus, psychology professor at University of British Columbia and author of a widely used scale to measure self-deceptive tendencies. It involves strong psychological forces that keep us from acknowledging a threatening truth about ourselves, he says.
Believing we are more talented or intelligent than we really are can help us influence and win over others, says Robert Trivers, an anthropology professor at Rutgers University and author of “The Folly of Fools,” a 2011 book on the subject. An executive who talks himself into believing he is a great public speaker may not only feel better as he performs, but increase “how much he fools people, by having a confident style that persuades them that he’s good,” he says.
Researchers haven’t studied large population samples to compare rates of self-deception or compared men and women, but they know based on smaller studies that it is very common. And scientists in many different disciplines are drawn to studying it, says Michael I. Norton, an associate professor at Harvard Business School. “It’s also one of the most puzzling things that humans do.”
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