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Flashcards in Perception: Deception Deck (5)
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Success in Detecting Lying

We are successful at labeling lies about 54% of the time –not much better than chance, (50%)

Harder to detect lies if we do not know someone – not familiar with normal behavior

Detection improvement is difficult due to lack of feedback from others, no real learning mechanism available outside of a laboratory

Cops seem to do a slightly better at detecting lies from felons

We seem to tolerate small lies in society, because confronting them leads to hostility and awkwardness


Potentially Valid Lying Cues

Lying is more cognitively exhausting--revealed via micro-expressions

Distant verbiage

Less rich details

Smaller talking duration

Word and phrase repetition

Nervous/tense appearance

Higher tone

Chin risen (to potentially generate confidence)

Pressed lips


Pupil dilation

Illustrators (liars make fewer arm and hand movements that are designed to modify and/or supplement what is being said verbally)


Unreliable cues of lying



Postural shifts


Looking left/right

Smiling – true smiles use eye muscles, but some can be trained to mimic this


Who looks honest?

People who are:


emotionally expressive

high dominance

*Creativity and lying-ability are correlated in both directions


Role of motivation in lying

Motivational impairment effect
*The more motivated one is, the greater the chance one will be caught, possibly due to anxiety

*More emotionally motivated to succeed is one’s downfall

We do better when we rely on intuition/unconscious processes and not overanalyzing