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  • Author Author: Catwell
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Eye tracking system looks deep into your eyes - can tell if you’re lying

Catwell

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SMI RED-oem Remote Eye Tracking platform render. (via SMI)


Law enforcement and federal agencies have been using polygraph machines to detect lies since Cesare Lombroso introduced his blood pressure device back in 1895. Before that? Torture was used as the best method to detect fibs (still is to some extent). Just ask any witch that was present at the Salem Trials and they could probably tell it didn’t work that well. Some analysts will tell you that the eyes are the gateway in detecting if someone is telling the truth or not. They claim the rate a person blinks is a telltale sign of lying as well as not making eye contact or even looking up and to the left or right may be an indication of false pretenses. Some of the early pioneers of computerized polygraph have banded together to form a company, known as Converus, which is developing a new platform that tracks eye movement to detect deception.


The soon-to-be-released EyeDetect device is outfitted with German-based SMI’s (SensoMotoric Instruments) RED-oem Eye Tracking 3D camera system that tracks gaze, eye movement and pupil dilation down to 1/10 of a millimeter. According to Converus, lying causes minute changes in the eye’s behavior because it induces ‘cognitive load’ (psychology- load related to executive control of working memory), which has an effect on eye movement. Think of it like computer RAM that holds on to pieces of data before being replaced by different programs. EyeDetect captures that ocular data and analyses it to assess the ‘likelihood’ of deception while ‘suspects’ answer a series of true or false questions. The company claims the system has an accuracy rate of 85%, which is pretty high in terms of reliability but most courts in the US still don’t allow polygraph tests submitted as evidence. Converus is set to launch their device in April of this year, with Mexico as its first test subject. Businesses will use it for pre-employment screening as well as using it for random testing on employees to weed-out those individuals that accept bribes or are involved in other nefarious activities (there goes police officers and government officials).


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  • Some people like to rely on a device so that they do not have to carry the responsibility for judging someone in case they get it wrong.

     

    There is a worrisome trend developing where the least trust worthy people (politicians) want all of the rest of us to tell the truth.

    At the same time, they will not let us use one on them before we elect them to office.

    Makes me very curious about who is funding the development and their intended purpose.

     

    Me, I am too lazy to lie.  There are too many details you have to remember and it is only when you are caught, not if.

    So just be honest and you are ok.  Plus it gives me a good excuse to be very blunt when people ask me esoteric questions. image

     

    DAB

  • in reply to DAB

    Me, I am too lazy to lie.  There are too many details you have to remember ...

    I agree its hard to work out which bit you told who, and whether they know more than you.

     

    I have found that some people don't like being told the truth ... or maybe they wanted it sugar coated and implied rather than direct...

     

    mark

  • in reply to sqkybeaver

    Hi Sheldon,

     

    A "lie" detector is just a verification tool.  For some its an intrusion while others see it as a vindication tool.

    Some occupations demand "absolute" truth to be trusted with important information.  Trust requires verification against temptations.

     

    When the occupation is very important, then the verification process is essential.

     

    DAB

  • in reply to DAB

    DAB

     

    i don't see any evidence any polygraph can be of any value. the most famous polygraph liars are on record saying confidence(or similar)  is the only thing needed to dupe the tests. forget last years conviction of Mr. Dixon for teaching countermeasure techniques, the government relies to much on on devices and "professionals" that have no more concrete "evidence" than a tarot reading.

     

    as far as the need to to handle sensitive information, 14(or more) US government agencies use the polygraph for pre-employment screening. every one of the agencies has been caught in a lie of some sort on official reports.

     

    as far as i am concerned, the presidency of the united states should be subject to these test if they are deemed necessary for NSA annalists.

     

    if i was interrogating(interviewing) you for a job, how would you respond to a question like: "if you were upset with official policy, would you only bring it up to your supervisor, or would you bring it to public light?" this is the type of questions asked to determine if applicants are in line with the current bosses.

     

    seemingly open-ended questions can be interpreted many ways, this is an issue these tests where the interviewee could be easy tricked into saying something damning, even if false.

     

    i'm not sure the 85% accuracy is valid, if it was a dmm that could read 6 volts when it it could be true 3 volts. these tests are no more science than homeopathy or a visit with some sort of medium.

     

    as far as a confirmation of employment status, i am sure it is cheaper and more reliable to call a previous employer than to hire a pornographer.

  • in reply to sqkybeaver

    damn auto spell correct, that last word should have been polygrapher.

  • in reply to sqkybeaver

    I don't know ...... at least with the first you pretty sure what you're getting.image

  • in reply to sqkybeaver

    For most people, just knowing they will be randomly selected for a Poly is enough reason to keep clean.

    If someone is going to do something bad, then the Poly does not work unless you catch them while they are doing something bad.

     

    The current US laws prevent former employers from providing "accurate information" about past employees, so a Poly is much better for accuracy.

    Open ended questions are useless for determining hiring.  I mostly judged people on attitude after they demonstrated technical knowledge.

    If I was not sure of a person, I just did not hire them.  The whole process is about risk management.  No process is 100%, but there a little things that indicate the persons intent.

     

    You do not have to like them, but short of any other accurate method for determining truth, they are better than nothing.

    Information control is essential in keeping track of who knows what and when.  Most people show signs of behavior before they do bad things, but you still need to know what to look for and when to suspect things.  Those talents are not common and we need more people who are good at it.

     

    DAB

Comment
  • in reply to sqkybeaver

    For most people, just knowing they will be randomly selected for a Poly is enough reason to keep clean.

    If someone is going to do something bad, then the Poly does not work unless you catch them while they are doing something bad.

     

    The current US laws prevent former employers from providing "accurate information" about past employees, so a Poly is much better for accuracy.

    Open ended questions are useless for determining hiring.  I mostly judged people on attitude after they demonstrated technical knowledge.

    If I was not sure of a person, I just did not hire them.  The whole process is about risk management.  No process is 100%, but there a little things that indicate the persons intent.

     

    You do not have to like them, but short of any other accurate method for determining truth, they are better than nothing.

    Information control is essential in keeping track of who knows what and when.  Most people show signs of behavior before they do bad things, but you still need to know what to look for and when to suspect things.  Those talents are not common and we need more people who are good at it.

     

    DAB

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  • in reply to DAB

    DAB wrote:

     

    For most people, just knowing they will be randomly selected for a Poly is enough reason to keep clean.

        kind of like how locks only keep the honest people, honest.

    DAB wrote:

     

    If I was not sure of a person, I just did not hire them.

    I feel the same way.

    DAB wrote:

     

    but short of any other accurate method for determining truth, they are better than nothing.

     

    I would pick nothing, these test can do nothing that an observant interviewer can't figure out on their own, countermeasures aside.

     

    I can understand why a polygraph is used in criminal investigations, I can't however understand why people would subject themselves to one for any job.

  • in reply to sqkybeaver

    The polygraph is used because it does provide a baseline of lying or not.  It is very effective against the average person and it helps take the decision out of the domain of a an educated guess.

     

    I have taken the test and all I can say is that it was no big deal and it gave me access to toys beyond my wildest dreams.

    Unless you have something to hide, you should not worry about taking the test.

    If you have something to hide, then it is better that you stay away from the jobs that require trust.

     

    The decision is yours, but by refusing the test, you automatically cast doubt about your character.

    Many consider your refusal as an admission of untrustworthiness.

     

    I have know some people who have refused and they limited their career because they were automatically unqualified for some of the more challenging and interesting projects.

     

    Just a thought.

     

    DAB

  • in reply to DAB

    I'm glad your experience was not negative.

    DAB wrote:

     

    Unless you have something to hide,

     

    this is a fallacy, I just have nothing i wish to share.

  • in reply to sqkybeaver

    Fair enough, but as I stated, refusal is usually a flag of suspicion.

     

    That said, we live in a country where we do have the freedom of choice.  I hope we never lose that freedom.

     

    Every choice has consequences.  As long as you can accept the result of your decision, you have every right to make it.

    Unfortunately, some decisions result in some very unfair results.  Only the people who make the rules can assess the fairness of it all.

     

    DAB

  • in reply to DAB

    DAB wrote:

     

    Fair enough, but as I stated, refusal is usually a flag of suspicion.

    That said, we live in a country where we do have the freedom of choice.  I hope we never lose that freedom.

    JMO/YMMV/IANAL:

     

    I normally steer clear of politics at this site, but I feel compelled to say the following:  IMO requiring someone to take a polygraph test as a condition of employment violates several fundamental American values.  Specifically, it violates the Fifth Amendment (you cannot be compelled to give evidence against yourself), the Fourth Amendment (freedom from unreasonable search and seizure without probable cause), and the Presumption of Innocence (you are innocent until proven guilty).  These are fundamental values put into the Constitution by our founders to protect against abusive government.

     

    Many brave patriots have suffered and/or died fighting for these fundamental American values.  Citizens need to keep fighting for these values, or these freedoms will be lost.  IMO when people choose to work for organizations that violate these values, the values are eroded.  Sure, it's legal for non-government organizations to require lie detector tests, but IMO it shows contempt for American values and I don't want to be involved with such an organization.

     

    The idea that "refusal is usually a flag of suspicion" suggests to me that the suspicious person does not understand and/or does not believe in Presumption of Innocence, the Fifth Amendment, and/or the Fourth.  It also suggest that the organization has a culture of suspicion and paranoia and would be an unhealthy place to work.  It also suggests that if I were to join such an organization, it would be hard to find colleagues whose values I share and it would be an unpleasant place to work.

     

    JMO/YMMV/IANAL