The language of lying — Noah Zandan

21,227,622 views ・ 2014-11-03

TED-Ed


Please double-click on the English subtitles below to play the video.

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"Sorry, my phone died."
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"It's nothing. I'm fine."
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"These allegations are completely unfounded."
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"The company was not aware of any wrongdoing."
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"I love you."
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We hear anywhere from 10 to 200 lies a day,
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and we spent much of our history coming up with ways to detect them,
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from medieval torture devices to polygraphs,
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blood-pressure and breathing monitors, voice-stress analyzers,
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eye trackers, infrared brain scanners,
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and even the 400-pound electroencephalogram.
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But although such tools have worked under certain circumstances,
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most can be fooled with enough preparation,
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and none are considered reliable enough to even be admissible in court.
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But, what if the problem is not with the techniques,
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but the underlying assumption that lying spurs physiological changes?
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What if we took a more direct approach,
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using communication science to analyze the lies themselves?
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On a psychological level, we lie partly to paint a better picture of ourselves,
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connecting our fantasies to the person we wish we were
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rather than the person we are.
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But while our brain is busy dreaming, it's letting plenty of signals slip by.
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Our conscious mind only controls about 5% of our cognitive function,
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including communication,
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while the other 95% occurs beyond our awareness,
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and according to the literature on reality monitoring,
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stories based on imagined experiences
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are qualitatively different from those based on real experiences.
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This suggests that creating a false story about a personal topic takes work
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and results in a different pattern of language use.
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A technology known as linguistic text analysis
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has helped to identify four such common patterns
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in the subconscious language of deception.
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First, liars reference themselves less, when making deceptive statements.
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They write or talk more about others, often using the third person
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to distance and disassociate themselves from their lie,
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which sounds more false:
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"Absolutely no party took place at this house,"
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or "I didn't host a party here."
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Second, liars tend to be more negative,
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because on a subconscious level, they feel guilty about lying.
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For example, a liar might say something like,
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"Sorry, my stupid phone battery died. I hate that thing."
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Third, liars typically explain events in simple terms
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since our brains struggle to build a complex lie.
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Judgment and evaluation
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are complex things for our brains to compute.
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As a U.S. President once famously insisted:
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"I did not have sexual relations with that woman."
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And finally, even though liars keep descriptions simple,
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they tend to use longer and more convoluted sentence structure,
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inserting unnecessary words
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and irrelevant but factual sounding details in order to pad the lie.
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Another President confronted with a scandal proclaimed:
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"I can say, categorically, that this investigation indicates
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that no one on the White House staff,
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no one in this administration presently employed
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was involved in this very bizarre incident."
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Let's apply linguistic analysis to some famous examples.
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Take seven-time Tour de France winner Lance Armstrong.
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When comparing a 2005 interview,
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in which he had denied taking performance-enhancing drugs
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to a 2013 interview, in which he admitted it,
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his use of personal pronouns increased by nearly 3/4.
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Note the contrast between the following two quotes.
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First: "Okay, you know, a guy in a French, in a Parisian laboratory
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opens up your sample, you know, Jean-Francis so-and-so, and he tests it.
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And then you get a phone call from a newspaper that says:
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'We found you to be positive six times for EPO."
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Second: "I lost myself in all of that.
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I'm sure there would be other people that couldn't handle it,
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but I certainly couldn't handle it,
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and I was used to controlling everything in my life.
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I controlled every outcome in my life."
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In his denial, Armstrong described a hypothetical situation
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focused on someone else,
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removing himself from the situation entirely.
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In his admission, he owns his statements,
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delving into his personal emotions and motivations.
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But the use of personal pronouns is just one indicator of deception.
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Let's look at another example from former Senator
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and U.S. Presidential candidate John Edwards:
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"I only know that the apparent father has said publicly
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that he is the father of the baby.
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I also have not been engaged in any activity of any description
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that requested, agreed to, or supported payments of any kind
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to the woman or to the apparent father of the baby."
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Not only is that a pretty long-winded way to say, "The baby isn't mine,"
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but Edwards never calls the other parties by name,
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instead saying "that baby," "the woman," and "the apparent father."
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Now let's see what he had to say when later admitting paternity:
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"I am Quinn's father.
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I will do everything in my power to provide her
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with the love and support she deserves."
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The statement is short and direct,
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calling the child by name and addressing his role in her life.
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So how can you apply these lie-spotting techniques to your life?
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First, remember that many of the lies we encounter on a daily basis
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are far less serious that these examples, and may even be harmless.
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But it's still worthwhile to be aware of telltale clues,
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like minimal self-references, negative language,
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simple explanations and convoluted phrasing.
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It just might help you avoid an overvalued stock,
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an ineffective product, or even a terrible relationship.
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