Just out of curiosity.
2006-10-20 01:57:31 · 20 answers · asked by The truth is all around you... 2 in Social Science ➔ Other - Social Science
nope
2006-10-20 02:04:25 · answer #1 · answered by military and veteran advocate 6 · 0⤊ 1⤋
They really detect that people are nervous. Things like sweating, elevated heart rate, etc. So a person without a conscience who doesn't feel guilty or nervous will not appear to be lying by the measures used on a lie detector. On the other hand an honest person who is nervous because they're being questioned may look like they're lying.
2006-10-20 09:08:41 · answer #2 · answered by Christina 7 · 0⤊ 1⤋
Although they're often called "lie detectors," polygraphs only determine deceptive behaviors, not whether someone is actually lying. They're also not usually admissible in court.
When you sit down in the chair for a polygraph exam, several tubes and wires are connected to your body in specific locations to monitor your physiological activities. Deceptive behavior is supposed to trigger certain physiological changes that can be detected by a polygraph and a trained examiner, who is sometimes called a forensic psychophysiologist (FP). This examiner is looking for the amount of fluctuation in certain physiological activities.
2006-10-20 09:11:33 · answer #3 · answered by baxterstuds 2 · 1⤊ 0⤋
Yes and no. Lie detecters are nerve sensored so if you are nervous it will give off a false reading so try to remain as calm as possible and do not let the person asking the questions intimidate you.
2006-10-20 09:11:41 · answer #4 · answered by Lina 2 · 0⤊ 0⤋
Lie detectors measures the rate of a person's pulse, which can indicate if someone is lying. However, they cannot tell the difference between a liar and someone who is nervous.
2006-10-20 09:07:29 · answer #5 · answered by Anonymous · 0⤊ 1⤋
I really don't think so do to the fact that they rely on ones heart rate and blood pressure a real good lyer could ask thereself a counter questoin in there mind while being hooked to the machine
2006-10-20 12:24:46 · answer #6 · answered by Bashir69 1 · 0⤊ 0⤋
I don't believe so. There are too many variables and it has been proven that people can make the machine work to their advantage. It it possible to cheat a lie detector by putting a thumb tack in the bottom of your shoe and tapping on the floor so that the tack pricks your toe (increases heart rate)..
2006-10-20 09:00:15 · answer #7 · answered by Anonymous · 0⤊ 2⤋
Yes, but it really depends on how good the operator is at interrupting the machine. That is why they are not admissible in court. And I have taken the test before for Security positions.
2006-10-20 12:24:31 · answer #8 · answered by jadamgrd 7 · 0⤊ 0⤋
I think they do to an extent, but they aren't %100 accurate. I think they measure heart rate/ pressure. Usually if you lie then your heart beats a little faster and blood pressure goes up. I think in most courts, they are inadmissible. Some military groups are trained to beat them if I remember right.
2006-10-20 09:04:04 · answer #9 · answered by bnvs232000 3 · 1⤊ 0⤋
Yes and No. It can be fooled if the person in a sociopath and believes his or her own lies. The only other way to possibly fool the machine is someone who can control their own heart rate and breathing and muscle contractions. And believe me that isn't easy. I know someone who practices that much control over their body and it's weird.
2006-10-20 09:12:14 · answer #10 · answered by Cheryl 2 · 0⤊ 0⤋
It has been said that a person who is in complete control of their emotions can lie without detection.
2006-10-20 09:01:50 · answer #11 · answered by Chu' 2 · 1⤊ 0⤋