I
am an author and instructor in criminal interview and interrogation and
have been for more than 24 years. Over the last 10 years or so, I keep
seeing NLP information being taught as an interrogation method. I have
done some selected reading from other sources and I have been perusing
your web page (very well done!).
My
question relates to the diagnosis of eye movement. I have some
understanding of the phenomenon of visual, auditory, kinesthetic and of
information retrieval and creation. Many of my students are saying that
they are receiving training in NLP and are telling me that they are
learning that the eyes will tell everything and that you can always
tell if someone is lying based on eye movement - specifically if they
break eye contact to the right the person is lying. From some of my
readings, the articles I have read on your page and my own area of
expertise, I find this information extremely hard to accept as an
absolute and don't believe this is appropriate/accurate use of NLP. Is
this information I'm hearing accurate?
For
confirmation, I am author of the text Principles of Kinesic Interview
& Interrogation published by CRC Press Forensic Science Series. You
may locate my web page at http://www.kinesic.com.
Can
you give me a little feed back or an information source where I can
clarify this information before I stick my foot in my mouth?
Thanks for your help.
Stan B. Walters
The Truth
About Lying: Read the Signs & Protect Yourself From Deception
to learn about the scientific studies about deception cues.
Response from Stever Robbins:
Your
instincts are correct. The people being taught NLP are being given
incorrect information, or are interpreting the information incorrectly.
"Accessing
cues" happen when a person retrieves information that isn't easily
accessible from consciousness. If someone has been practicing or
rehearsing a lie, they won't necessarily require a noticeable accessing
cue to get it.
A
'constructed' cue might still happen when they're remembering. The
circa-1977 NLP eye accessing model says rightward eye movements
accompany Visual or Auditory CONSTRUCTED information. But people
construct images/sounds for all kinds of reasons. Bandler and Grinder
explicitly say in Frogs Into Princes that many people reconstruct their
memories, and show a 'construct' eye accessing cue even when
remembering. In fact, on a biochemical level, all memories are
'constructed'1 How 'constructed' a memory has to be to trigger that eye
accessing pattern isn't clear. Of course, people don't necessarily
access the information you think they're accessing. I did my
undergraduate MIT thesis on validating the eye accessing cue model 2.
My experimental protocol found no correlation, though my own personal
impression of the model's validity was reinforced during debriefing. As
part of the experiment, I asked, "How many chairs do you have in your
living room?" expecting them to access visual information. They would
have a KINESTHETIC eye accessing cue. That counted as a
non-correlation. During the debrief, the subject said, "Remember when
you asked about the chairs? I suddenly remembered how wonderful it felt
when my mother rocked me to sleep in those chairs." (He went on about
the wonderful FEELING for a few more seconds.) Just because I wanted
him to access certain information didn't mean he did.
In
police interrogation, I can imagine anyone--innocent or not--worrying
about how their answers will be taken. If they worry by constructing
scenarios in their mind, that could produce a 'constructed' accessing
cue.
Finally,
there are other models of eye movement which are taught in more recent
NLP seminars that have little to do with the original accessing cues.
Accessing memories is only the first step in using the information.
Once accessed, a person arranges the information spatially around them
according to their "sub modalities" and for associated pictures/sounds,
according to the content of the information. At this point, a
right-hand glance might be an accessing cue or might be a reference to
information spatially located to the right.
The Truth
About Lying: Read the Signs & Protect Yourself From Deception
to learn about the scientific studies about deception cues.
A
better approach to lie detection is to learn to notice unconscious
physiological responses: pupil dilation, pore size, skin flush, muscle
tone changes, breathing, etc. Calibrate carefully. Ask lots of
questions that you know the answers to, until you are sure you can tell
what combinations of nonverbal responses correspond to truth. If they
happen to lie to one of your questions and you know they're lying,
you'll also have the chance to calibrate a lie. Good poker players do
this when they look for a "tell" in the other players.
Then
when you interrogate, watch for deviations in their nonverbal behavior.
Those won't necessarily mean they're lying, but they will point to
areas where the person--for whatever reason--had a significantly
different internal response.
You
want to calibrate with questions as close as possible to the intensity
of the questions you'll be asking. If you calibrate 'truth' by asking,
"Were you born on January 3, 1970?" and then interrogate with, "Did you
fire two shotgun blasts into the gas station attendant at point blank
range?" you'll likely get different nonverbals simply because of the
relative intensity of the two questions.
I've
heard that voice tone often changes when someone is lying. Since voice
tone is pretty unconscious in the Western world, it's often outside the
awareness of the liar. So calibrating on voice tone might be another
fruitful tack to take.
But
so far as I know, there's no absolute way to know if someone's lying.
Human beings are far too complex for our current understanding to give
definite results.
I hope this helps.
Stever Robbins
1
The Psychobiology of Mind-Body Healing, Ernest Lawrence Rossi, 1986,
W.W. Norton & Company, page 69. 2 I've since changed my stance on
the validity of even asking if the eye accessing model is 'true.'
Accessing cues are a guide to intervention; they're not supposed to be
'true.'
Use "CONTACT US" for questions or comments about this web site.
� Copyright 1997 by Stan B. Walters. All Rights Reserved. Last modified:
April 1, 2008