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New UBCO research shows that attempts to deceive others may become self-deception

Art of lies at UBCO

A new University of British Columbia Okanagan study indicates liars may eventually begin to fool themselves.

Dr. Leanne ten Brinke is an assistant professor of psychology at UBCO and director of the Truth and Trust Lab in the Irving K. Barber Faculty of Arts and Social Sciences. She recently published research on how telling lies, and receiving feedback that the lie was believable, can impact people’s memory for the truth.

The study, published in Memory, involved participants who were asked to file an insurance claim regarding a theft from an office. Some of the 140 participants were asked to lie while others told the truth. During a follow-up interview two weeks later, those who had lied could remember how many items had been stolen, but most liars had trouble remembering which items were actually taken and which they had fraudulently claimed stolen.

“The same as truth-tellers, the liars correctly reported that four items were stolen,” Dr. ten Brinke says. “But when asked to list what was missing, most of the liars incorporated at least one of the items they lied about into their memory. The fictional piece became part of their memory.”

Dr. ten Brinke has spent much of her career researching liars and the art of deception.

Over time, attempts to deceive others may become self-deception, she says. And it evolves as to how someone remembers a particular event. Lies, therefore, become part of your memory for the truth.

“Once the false detail is incorporated into memory, sharing that information no longer fits the definition of deception — because you’re not intentionally misleading anyone. You think it’s the truth, even though it’s not an accurate depiction of past events,” she says. “At some point, you knew it was a lie but now it’s been incorporated into your memory and you believe it to be true.”

Dr. ten Brinke describes deception as the art of “pulling the wool over someone’s eyes” and some people become quite skilled at the telling of lies.

In other cases, self-deception may aid the liar. They can convincedly tell the lie because to them the distorted memory is perceived to be truthful.

“We would like to do future research to see how self-deception might improve your ability to dupe others,” Dr. ten Brinke adds. “There may be a perceived genuineness of that recollection. Where fiction has indeed become fact in your memory.”



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