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European Researchers Develop More Accurate Full-Body Polygraph
jfruh writes: Despite their widespread use in industry and law enforcement, traditional lie-detector polygraphs give accurate results only about 60% of the time, barely better than the 55% accuracy people can get just by following their gut instincts. Now researchers in the UK and the Netherlands are trying to improve that. They claim a full-body polygraph based on motion-capture suits used for movie special effects can detect lies with 75% accuracy.
Using all the homoerotic power of homoeopathy and toad lasers, you WILL tell us the truth or ELSE!!!!!!!!!
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75% of the time, it works all of the time!
just add full body motion to the list of do's and don'ts when you're taking the test. ever notice how often joe biden scratches his nose when he's talking out of his ass? yea, that's called a tell. i remember hearing about an indiana guy that was arrested for training people to beat polygraphs.
A blind guess on a 50/50 question is 50% accurate.
Correctly decoding a single random data bit with 50% accuracy conveys ZERO information. It is as good as random noise.
((if you know you get it right 10% of the time you get more information because you know you are likley to be wrong)).
75% accuracy is fairly useless on a measure of information received.
I have a dowsing rod with better accuracy. My coin flip is 50% accurate. But lets convince everyone here that our standards for the truth are low enough to buy a bunch of polygraph apparatus that is 75% accurate, because technology is just not good enough to get to the truth. The truth is, this is totally stupid.
Now we need to make it compulsory for all politicians to use these when discussing their political manifestos to get in power...
...and stressful enough already. Now they'll tell you to strip and get into a silly motion capture suit. Next up is sticking a probe up our anus to measure the contraction of the sphincter muscles. After all, it's for our own good. How else will our overlords prevent another Snowden fiasco?
Stephen Hawking for all the things he did!
If the makers are claiming 75% and nobody is trained against these kinds of polygraphs, they probably won't be a bit different in the real world any further than 5 years from now.
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I wonder why they don't use MRI or some other brain activity visualization technique; Recalling memory and forging a new story must be more distinguishable there than on body movements.
Brain fingerprinting seems to be quit a bit better at detecting whether a person has knowledge of a crime.
http://en.wikipedia.org/wiki/B...
Tea leaves?
Instead broadening the area of interest, why not focus on where lies are actually formed, i.e. the brain? Put more effort in understanding the brain and on finding a way to detect changes to the brain when someone lies.
Don't fornicate. Seriously, just don't do it.
There are so many different types of lies, and so many different liars, I need some kind of control group to have confidence they don't just catch the ones who wet their pants (the 55% test). The worst ones I encounter are so goddam sure of themselves within minutes that I believe they could pass any garment.
Gently reply
"Despite their widespread use in industry and law enforcement, traditional lie-detector polygraphs give accurate results only about 60% of the time"
There is no verifiable scientific evidence that polygraphs actually work.
http://www.forbes.com/sites/ro...
They tested this on 75 volunteers. This is an example of the kind of bogus "proof" that is used to justify the utility of polygraphs in the first place.
It's in the same territory as drug companies excluding tests that show problems with their drugs. I'm sure if they ran enough small groups that they could find one with better then 90% and report only that.
Why do polygraph advocates lie so much?
Why is Snark Required?
That's the point, they make it stressful so your body "confesses", it's not that the polygraph works, its that you confess because you believe it works, and for that it needs to be a full on show of sciency-like-stuff.
So the more showman like and the more stressful, the better the result. Well until people get use to that, then they need to add more theatre to it. Perhaps inject you with 'nano-truth-bots' to ramp up the sciency stress a bit, or wrap you in a graphene cloak of honesty, or other such nonsense.
Everyone lies. Catching someone in a lie isn't really a big deal and why interrogators (real ones, not the torture kind or those that use polygraphs as anything more than one tool in a kit) don't really worry about someone lying to them. It's the reasons or motives behind the lie that are potentially harmful and why it takes time and rigor to get at those motives. There is no magic bullet for getting truthful answers from someone that knows how to lie.
Read some of this guy's stuff: http://www.psychologytoday.com/blog/spycatcher
Actually, for most definitions of HR, it doesn't matter what they think about polygraph tests. In most cases, they aren't allowed to ask you to take one, and you can pretty much always refuse if they do.
Those who advocate genocide deserve every protection afforded by law, and none afforded by common human decency.
goat's blood and chicken entrails effective?
In other news, the same research group has improved the accuracy of entrail reading by including other internal organs, doubled the accuracy of palm reading by using both hands, and are now hard at work devising ever-larger crystal balls in the hopes of refining their accuracy beyond "total bullshit."
Liberty in your lifetime
98% of spirits tell the truth when questioned about matters of the material world.
File it with "Scientology bunkum".
Political debates have me rolling my eyes so much I think I got optical whiplash. I should sue. - Foamy The Squirrel
I don't believe them.
Confucius say, "Find worm in apple - bad. Find half a worm - worse."
Ironically, the claim that it is possible to detect lies has always been a con. Polygraph detectors are made by con artists.
They can detect nervousness, nothing more. And of course if you lie to people that you can detect lies, that will make it a self fulfilling prophesy to the less intelligent.
Of course a normal level of neurosis and intelligence will make you nervous when they as you an incriminating question. But since when did authorities care what happens to intelligent people rather than to gullible employees or controllable masses?
I would also like to know if there is really a "widespread use" of polygraphs. I understood they were almost exclusively used in the US, and that most other countries actually forbade its use as evidence in courts - which would make the use of polygraph a local idiosyncracy rather than a widespread practice.
This device is still flawed: it measure nervousness, which means that any psychopath will pass the test without any problem. It also means that people who get emotional easily will fail even if they tell the truth.
IOW: garbage.
"The agriculture ministry is not in charge of Gundam" - Japanese ministry official.
I would also like to know if there is really a "widespread use" of polygraphs. I understood they were almost exclusively used in the US, and that most other countries actually forbade its use as evidence in courts - which would make the use of polygraph a local idiosyncracy rather than a widespread practice.
I think even in the US they are not allowed as evidence. They are used as interogation, but yes, I have never heard of any use outside of the US, at least they fell out of favor around the same time as phrenology.
The blind earth bender Toph is the best lie detector on record. She detects the tiniest of the vibrations on earth and uses it to detect lies, even though she is totally blind. Her earth bending skills are so good she can fight many fire and water benders without even seeing them. But, despite all that, despite becoming the earth bending guru to Aang, she was fooled by the Fire nation circus performers. Shows there is no way to reliably detect a lie.
sed -e 's/Chuck Norris/Rajnikant/g' joke > fact
Despite their widespread use in industry and law enforcement
By whom? I only know them from American films.
Polygraphs are voodoo.
-jcr
The only title of honor that a tyrant can grant is "Enemy of the State."
Yet they are still used when investigating people for the highest of clearances in the US. LOL.
So you are going to open yourself up to a 25% error rate? DO NOT take a polygraph test. The corrupt cops of the world just want to be able to tell you that you failed it. It makes me sick every time I see someone agree to submit to this fraud on crime shows. Get a brain people!
All you really need to know is the claim that it "can detect lies with 75% accuracy."
Nope; sorry, that's just *not* what polygraphs do; conflating "is stressed" or "showing a marked difference in measured body responses" with "is lying" is exactly the problem, no matter how accurate are the sensors.
Everyone should read (it's free!) The Lie Behind the Lie Detector. Subtract agenda as necessary, but don't ignore the meat of it: https://antipolygraph.org/lie-...
jrnl: http://tinyurl.com/c2l8yr / foes: http://tinyurl.com/ckjno5