They measure your physiological responses while asking you questions:
blood pressure, heart rate, sweat level, breathing patterns.
The assumption is that lying will make you nervous, and that your body will betray you.
Sometimes it works (but not always).
AnswerWhen human beings tell a lie there are some acute changes in their nerve's functions, typically of brains. A lie detector machine can trace that minute change and the convict can be identified. However in some country it cannot be used if the suspected does not wish to. It is ridiculous. AnswerThe lie detector is imprecise. Anyone who says it is deadly accurate does not know enough about the process. As stated, the "regular" lie detector test involves measuring a person's physiological responses when that individual is being asked a series of questions. It does not look at the brain directly. The test can be inaccurate, and it is not a tool of the court; tests are not evidence. But new technology involving the scanning of the brain can point to an individual's knowledge of things he may deny. In a demonstration of this technology, FBI agents were asked to deny knowledge of "agent stuff" and yet when terms known only to agents were presented, their brain activity indicated their knowledge without their even having to respond to the questions. This technological application is still being investigated.Answer
When human beings tell a lie there are some acute changes in their nerve's functions, typically of brains. A lie detector machine can trace that minute change and the convict can be identified.
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Test as a school test : Examen Test as something to test yourself : Test
Validity of a test refers to the ability of test to test what it is supposed to test
this is a test
Validity of a test refers to the ability of test to test what it is supposed to test
blood test, eye test, IQ test, drug test, driving/road test
A TEST A TEST A TEST
test answer
The ishihara test is a color vision test.
These are the carbohydrate tests that would give a positive result on maltose: 1.Molisch test 2. Fehling's Test 3. Benedict's Test 4. Nylander's Test 5. Tollen's Test 6. Seliwanoff's Test 7. Barfoed's Test