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A polygraph (often called a lie detector) is actually a biomedical instrument. This device looks at and charts or logs a number of physiological characteristics (blood pressure, pulse, respiration, breathing rhythm, body temperature and the conductivity of skin) and the changes in these features as questions are asked of the subject and he answers.
The idea is to ask questions that establish a "baseline" physiology. If and when the subject provides false answers, changes in some "baseline" physiological factor will appear. These can provide some distinctive contrasts that could indicate that the individual is lying. The physiological changes monitored are controlled by the sympathetic nervous system, and as the questions are asked and answered, physiological responses are tracked. A link can be found below to check facts and learn more.
Polygraph
A polygraph is a machine in which the multiple ("poly") signals from the sensors are recorded on a single strip of moving paper ("graph").
How does it work?
About 4 to 6 sensors are attached to body parts of a person during polygraph test and the sensors record data from these locations.
(see the link below)
Flavio Mitchell
A lie detector, or polygraph test, measures physiological responses such as heart rate, blood pressure, respiratory rate, and skin conductivity while a person is asked questions. These responses are believed to change when someone is being deceptive. The test results are then analyzed by a trained examiner to determine if the person is being truthful or not. However, the accuracy and reliability of polygraph tests are debated in the scientific community.
Wiki User
∙ 12y agoA polygraph (often called a lie detector) is actually a biomedical instrument. This device looks at and charts or logs a number of physiological characteristics (blood pressure, pulse, respiration, breathing rhythm, body temperature and the conductivity of skin) and the changes in these features as questions are asked of the subject and he answers.
The idea is to ask questions that establish a "baseline" physiology. If and when the subject provides false answers, changes in some "baseline" physiological factor will appear. These can provide some distinctive contrasts that could indicate that the individual is lying. The physiological changes monitored are controlled by the sympathetic nervous system, and as the questions are asked and answered, physiological responses are tracked. A link can be found below to check facts and learn more.
Polygraph
A polygraph is a machine in which the multiple ("poly") signals from the sensors are recorded on a single strip of moving paper ("graph").
How does it work?
About 4 to 6 sensors are attached to body parts of a person during polygraph test and the sensors record data from these locations.
(see the link below)
Wiki User
∙ 12y agoObviously, by the name of the device, it tells if a person is lying or if they are telling the truth.
The usual machine used is called a polygraph, for the paper graphs it makes. There is a roll of paper on the device that rolls out as it is marked. One or more pens mark the paper and wires are hooked up to you to monitor your breathing, pulse, sweating, and so forth. Then they ask you a question that you can give an honest answer to, and the machine records your responses. Then more questions are asked, and if your responses are different, it could indicate that you are lying.
Normally when you lie, your heart beats faster, your breathing changes, or you sweat more. There are various types of detectors, and various means have been tried over the years to fool them.
Wiki User
∙ 13y agoby the way you speak?
all the parts of the machine is on you so wen they ask you a question your heart skips a beat or something like that but the machine can detect it
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When taking someone to court for lying on you what words do you use?
Libel if it is in print and slander if it was publicly verbal.
What is a good sentence for the word perjury?
After lying in the previous trial he was now up on a charge of perjury.
Is Lying about felonies in an application a felony?
Yes, lying about felonies on an application can be considered a form of fraud or deception, which is illegal. It can result in criminal charges and potential legal consequences, depending on the circumstances and laws in the specific jurisdiction. It is advisable to be truthful and transparent on all applications to avoid any legal issues.
What is it called when someone is tricked into signing a false affidavit to have someone prosecuted?
It is called perjury, which involves lying under oath in a legal document, such as an affidavit, with the intent to deceive.
If a doctor is sued for malpractice can they testify in court about the patients care?
Yes, doctors who are sued for malpractice can testify in court about the patient's care. They may be questioned about the treatment provided, their decision-making process, and any relevant medical information related to the case. Their testimony can help clarify their actions and provide insights into the care provided.
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lying and sterotyping
