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Lie Detection - Reading the Face

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Our faces reveal multitudes about what we are thinking, feeling, intending. A slack jaw hints that we’ve been surprised, flared nostrils suggest hostility. Drooping eyelids indicate sadness or perhaps just … exhaustion. This is to say nothing of the powerful messages communicated by the face in the embarrassed downward glance, the flirtatious “look away,” or the piercing stare.

Because our facial expressions are reliable indicators of our true emotional state, they are a liespotter’s best friend. While not every lift of the eyebrows or tightening of the lips will yield an infallible “truth” or “lie” verdict, trained liespotters can glean much from careful study of the face.

This presentation is based on the book liespotting - proven techniques to detect deception by Pamela Meyer, founder and CEO of Calibrate, a leading deception detection training company.

Published in: Education, Technology, Design

Lie Detection - Reading the Face

  1. 1. READING THE FACEThe mouth may lie but the face it makes none the less tells the truth. FRIEDRICH NIETZSCHE
  2. 2. HOW MUCH DO YOU ALREADY KNOW?PAUL EKMAN AND THE FORESEVEN BASIC EMOTIONSNINE CLUES TO DECEIT
  3. 3. HOW MUCH DO YOU ALREADY KNOW?http://www.ehow.com/how_5311172_detect-micro-expressions.html
  4. 4. PAUL EKMAN AND THE FORE
  5. 5. SEVEN BASIC EMOTIONShttp://static.ddmcdn.com/gif/micro-mask.jpg
  6. 6. http://indikator.free.fr/ Happiness LOOK LIKE WHAT THEY Fear Contempt Sadness Surprise Anger Disgusthttp://www.ehow.com/how_5311172_detect-micro-expressions.html
  7. 7. http://www.humintell.com/2010/06/the-seven-basic-emotions-do-you-know-them/ Fear Mouth stretched Upper eyelids pulled up Eyebrows pulled up and together
  8. 8. SadnessInner corners of eyebrows raised Eyelids loose http://www.humintell.com/2010/06/the-seven-basic-emotions-do-you-know-them/ Lips corners pulled down
  9. 9. http://www.humintell.com/2010/06/the-seven-basic-emotions-do-you-know-them/ Disgust Lips loose Nose wrinkled Upper lip pulled up Eyebrows Pulled Down
  10. 10. Happiness Muscle around the eyes tightened “Crows Feet” wrinkles around eyes Cheeks raised http://www.humintell.com/2010/06/the-seven-basic-emotions-do-you-know-them/ Lip corners raised diagonally
  11. 11. Lip corner pulled up and back on one side only Eyes neutralhttp://www.humintell.com/2010/06/the-seven-basic-emotions-do-you-know-them/ Contempt
  12. 12. http://www.humintell.com/2010/06/the-seven-basic-emotions-do-you-know-them/ Surprise Eylids pulled up Mouth hangs open Entire eyebrow pulled up
  13. 13. Anger Eyebrows pulled down Upper lids pulled up http://www.humintell.com/2010/06/the-seven-basic-emotions-do-you-know-them/ Lower lids pulled up Margins of lips rolled in Lips may be tightened
  14. 14. NINE CLUES TO DECEIThttp://www.pantomime-popkultur.de/2011/07/die-entwicklung-der-pantomime-in-der-ehemaligen-ddr-7-biografie-dagmar-dark/
  15. 15. Micro-expressionsThe face often contains two messages - whatthe liar wants to show and what the liarwants to conceal. False but convincingexpressions may occur one moment andconcealed expressions leak the very nextmoment. The true, felt expressions of emotion http://www.cbc.ca/video/#/Shows/Doc_Zone/ID=1233752062occur because facial actions can be producedinvoluntarily, without thought or intention.
  16. 16. Squelched ExpressionsAs an expression emerges the person seems tobecome aware of what is beginning to showand interrupts the expression, sometimes alsocovering it with another expression. The smileis the most common cover or mask. http://www.flickr.com/photos/kaitlynwanderon/5164424136/
  17. 17. Reliable Muscle PatternsNot all of the muscles that produce facialexpression are equally easy to control.Reliable muscles are not available for use infalse expressions; the liar cannot gain accessto them. For example, only about 10 percentpeople can deliberately pull the corners of http://face-and-emotion.com/dataface/facs/guide/FACSIV1.htmltheir lips downward without moving theirchin muscle.
  18. 18. Blink RatesBlinking can , of course, be either voluntaryor involuntary, but people telling a lie willoften involuntarily blink more than they dowhen they’re telling the truth. http://www.youtube.com/watch?feature=player_embedded&v=6fRjtAK66as
  19. 19. Pupil DilationsPupils dilate when people are emotionallyaroused, but there is no voluntary pathwaythat allows anyone the option to make thischange by choice. Dilated pupils indicate aperson is emotionally aroused, however, theydo not reveal which emotion it is. A personwith unusually dilated pupils may be feeling http://www.nei.nih.gov/healthyeyes/eyeexam.aspfear or other emotions that he cannotconceal.
  20. 20. TearsTears are also produced by autonomic nervoussystem activity, but tears are signs of onlysome, not all, emotions. Tears occur withdistress, sadness, relief, certain forms ofenjoyment, and uncontrolled laughter. Tearsof enjoyment should not leak if the laughter http://healthylifecarenews.com/wp-content/uploads/2011/11/Tear.jpgitself has been suppressed.
  21. 21. Asymmetrical Expressions http://www.amazon.com/Telling-Lies-Marketplace-Politics-Marriage/dp/0393337456/ref=sr_1_1?s=books&ie=UTF8&qid=1290888306&sr=1-1In an asymmetrical facial expression, thesame actions appear on both sides of theface, but the actions are stronger on one sidethan the other. False smiles are moreasymmetrical than felt smiles.
  22. 22. TimingTrue emotional indicators are usuallyexpressed simultaneously; feigned indicatorsoccur in quick succession. For example, asubject who is pretending to outraged maycross his arms and then scowl. If he had been http://sauerman.files.wordpress.com/2010/03/a_smile_is_born_by_bupo.jpgangry , the arm movement and scowl wouldhave taken place at the same time.
  23. 23. DurationExpressions of long duration —certainly tenseconds or more, and usually 5 seconds—arelikely to be false. For example, a fixed smile islikely to conceal anger, anxiety, or some othernegative emotion; a parted-on frown mayindicate that the subject is trying to figure http://farm8.staticflickr.com/7009/6598337553_94374bbfb3_o.jpgout what to say.
  24. 24. The Tenth Indicator: IntuitionOur eyes or our ears may not immediatelyrecognise when we’re being lied to, but ourbrains certainly do. For example, one NorthWestern University study showed that evenwhen people did not realise that they had http://mediumsworld.files.wordpress.com/2012/01/albert-einstein-intuition.jpgseen a micro expression, their brain activitywas affected by its fleeting appearance onsomeone’s face.Trust yourself! Lie detection and intuitionhave a reciprocal relationship .

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