Someone told me that when you shake or get nervous when asked for the truth, that detects when you're lying. Well, I've been known to tell the truth in certain situations but still be nervous & shaky because of my anxiety disorder.
2007-08-22 11:11:45 · 8 answers · asked by Anonymous in Entertainment & Music ➔ Polls & Surveys
The do exist!
But, they don't measure movement in that way. When we lie, our heart rate and pulse go up, and the machine calculates all of this, and measures the highs and lows and it determines at which point you are lying.
Usually, the person administering the test will ask you some questions, that don't require any thought(like your date of birth, name, and address and phone number), and take this measurement as your base heart and pulse rate. Then he'll ask you some tougher questions(have you ever stolen money from an employer) and such as this, and measure how your heart and pulse rate fluctuate. Then, he'll ask you some simple questions a third time. to prove the machine is working properly, like your parents name and how many siblings.
If you ever have to get one, it's pretty cool, and the results sheet looks kind of like an EKG.
2007-08-23 03:12:34 · answer #1 · answered by Janice Dickinsons' Shrink 6 · 1⤊ 0⤋
Hi,
Yes, lie detectors (also known as polygraphs) are real. They are used by FBI, CIA, and other forms of law enforcement. However lie detectors have come under fire due to their reportedly low rate of accuracy.
The Washington Post explains that some scientists believe the high number of "false positives" has had a detrimental effect on careers. Additionally, the Federal Association of Scientists reports that there appears to be a "substantial error rate" among innocent subjects when tested
For those reasons, many argue that polygraph tests really aren't useful, though there are still many who believe they serve a purpose.
Mike
2007-08-22 18:37:15 · answer #2 · answered by Ask Mike 4 · 1⤊ 0⤋
It is called a polygraph examination. It does not work on some people and often times the results are not accepted in a court of law. But they do exist and can be very helpful.
They do a "test" first. If they saw you were anxious even during questions such as; "how old are you?" "where do you live?" etc. the examiner would take that into consideration.
2007-08-23 08:01:28 · answer #3 · answered by Patti C 7 · 1⤊ 0⤋
It also goes by your heart rate, and they know you will be nervous doing this i think thats accounted for But I'm not sure.
2007-08-22 18:16:40 · answer #4 · answered by Cowgirl lost seahorse 6 · 0⤊ 0⤋
Yes. they test you beforehand to make sure it's accurate. like they make you like on purpose for facts already established. I saw that part in a movie, but it was cool.
2007-08-22 18:19:19 · answer #5 · answered by ♥Celebrity Hotline♥ (Thumbs up!) 7 · 1⤊ 0⤋
it is not 100% and is easily tricked if you know how. they ask you simple questions at first to get an honesty baseline. ex: are you 14 years old? then with that they compare to the real questions
2007-08-22 18:16:59 · answer #6 · answered by taco_man_747 6 · 1⤊ 1⤋
yeah they exist....did you know that in one case they hooked up a plant up to it to solve a murder case and the plant "recognised" the killers voice and he was put away...true story...talk to your plants seemingly they grow better......!!!
2007-08-22 18:16:13 · answer #7 · answered by I_Luv_P!NK 3 · 0⤊ 0⤋
yes they bloody work too
2007-08-22 18:16:10 · answer #8 · answered by whisper 6 · 0⤊ 0⤋