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Jasmine Maki, Published April 07 2014

A look at why and how we lie, the subsequent effects

GRAND FORKS – When University of North Dakota student Kelsey Askegaard doesn’t want to go out with her friends, she gives them a false excuse.

Jenni Miska exaggerates her stories to emphasize a point. And Halae Anderson deceives her friends to prevent them from taking advantage of her belongings.

With little white lies, stretching the truth has become a part of these students’ daily lives. And they aren’t alone.

Research shows that people lie in about 20 percent of their social conversations that last 10 minutes or more, said Douglas Peters, psychology professor at UND.

“It’s a weird thing to think about,” said Miska, of Maple Grove, Minn. “Because I don’t feel like I ever (lie), but if I really had to think about it … probably a couple times a day.”

Continuous lying might seem wrong, but Peters suggests that intentionally deceiving one another and misrepresenting oneself is just a part of life.

Why we lie

Peters said we learn to lie through observation as a child. Children see their parents lie and oftentimes their lies go unpunished, so the act of lying becomes an acceptable way to interact with people.

Peters, who teaches forensic psychology at UND, has done research into child eyewitnesses. He conducted a study in which an adult would steal something in front of a child and tell the child “Don’t tell anyone,” “This will be our secret” or “I don’t want anybody to be in trouble.” Then, another adult would come into the room and ask what had happened.

“Depending on what that person said to the child, the children may or may not inform on the (thief),” Peters said.

Afterward, the children were interviewed and the findings suggested that children lied to protect someone, to keep a promise or because they were afraid.

Adults might lie for those same reasons. Psychologist and author Bella DePaulo’s research has found that one in four lies is told for the benefit of the other person.

Anderson, of Twin Valley, Minn., said she mostly lies to make people feel better.

And Peters said that’s the case with most women. They are more likely to stretch the truth to protect someone’s feelings, while men are more likely to lie to make themselves appear better.

People also lie simply to avoid conflict and confrontation. Askegaard, of St. Paul, said she often does so with her friends. “They could get offended (by the truth), so you just make an excuse instead of getting them mad or starting a little fight,” she said.

Consequences of lying

Despite the significance of a lie, Peters said continuous lying might contribute to future health problems.

In one study, he said, a professor studied two groups of adults for 10 weeks. One group was told to be mindful and try not to lie, while the other was not. Both groups kept diaries of their lies and deceit. They also took polygraph tests and rated themselves on emotional and physical health.

“The more lies that they told, the more emotional and physical problems they reported,” Peters said. “Lying can be distressful, particularly if it’s done frequently and over long periods of time.”

Miska said she can’t tell big lies because it eats her alive. When her parents were out of town one weekend, she tried to throw a party and instantly started worrying about getting caught.

“I came clean, but the guilt eats you,” she said.

Detecting lies

Along with affecting one’s health in the long run, lying also can have immediate effects on one’s body movements, tone of voice and choice of words. These immediate effects act as indicators that allow professionals to better determine when someone is lying.

Peters said psychologist Paul Ekman used high-speed photography to record very brief muscular movements in the face, such as a slight raise of an eyebrow or wrinkles across one’s forehead, which he termed emotional leakage.

He added that people can be trained to look for these micro expressions, but without adequate training they are extremely difficult to detect.

Peters said the tone or pitch of someone’s voice might change if he or she is lying. Or, liars might avoid certain language such as first person words, which would allow them to distance themselves from the conversation.

Peters said President Bill Clinton was caught doing this during the Monica Lewinsky scandal. He repeatedly said, “There was no sex with that woman,” rather than “I did not have sex with Monica Lewinsky.”

Liars also typically have short, undetailed answers, Peters said.

Psychologists have studied eye movement in relation to lying, and Peters said some believe that when right-handed people are lying they look up and to the left. When they are telling the truth, they look up and to the right. The difference comes from whether a person is remembering or constructing.

But Peters said none of these methods for detecting lies is foolproof.