|One of the most important skills you can have as a spy is
learning to recognize a lie.
Dr. Paul Ekman, Professor of Psychology, in the
Department of Psychiatry at the University of California Medical School,
San Francisco, is a specialist in recognizing deception. He doesnít
detect lies by the words used, but by noticing what he calls
"micro-expressions on peopleís faces." A micro-expression
lasts about 1/25th of a second. Regular expressions last half a second up
to several seconds. A micro-expression indicates that a person is thinking
more than would be normal in that situation. A micro-expression is a sign
Dr. Ekman gave an interview with the BBC
which is accompanied by a video of people intentionally
lying about their opinion of the death penalty. The close-up of the
forehead wrinkles is a useful tip.
Hereís another interview with Dr. Ekman: http://www.thismagazine.ca/36_2/freethink.html
in which he not only gives tips for recognizing lies, he
also talks about how to set up conversations to prevent lies, and instead
seek understanding. This is a most useful tip for spies.
Here is a website showing 7 common facial expressions,
and the interpretations:
Larry Farwell has invented a Brain Fingerprint machine
that works on the P 300 effect. The P 300 effect is the name
for the fact that most people react 300 milliseconds after seeing a
picture of something they recognize. The Brain Fingerprint machine
consists of a band of electrodes that goes around the head and a computer
screen that briefly flashes pictures that are neutral, pictures that are
familiar to the person who is being tested, and pictures that would only
be known to the criminal and those who are investigating the case.
Evidence from this machine has been accepted in courts of law and has been
used as grounds for a new trial or for proof of innocence. Read more
Sometimes words will give a liar away. Hereís an
article about how many liars avoid using pronouns, avoiding details, and
unnecessary emotion: http://abclocal.go.com/ktrk/news/111102_local_liars.html
And hereís a website thatís not scientific, but
tells what most people think about liars:
Read this and be sure you donít do the things this
article says liars do. It will help you earn trust from your suspects and
help you avoid being taken in if they lie to you.