Significant changes occur in humans when they try to lie, was invented by scientists of devices to a lie detector based on measuring the pulse rate (heart rate) and the amount of sweat secreted from the hands and face for example, to measure blood pressure and so on, but it remained the efficiency of these devices do not exceed 20 percent .
Bandits pts were able to fool these devices brilliantly did not show any significant changes to them. But new scientific research, the researchers found in this area and after a lot of experiments that when a person starts lying at this moment changes occur on the face lasting for fractions of a second, and most people do not notice these changes, but photography fast show these changes clearly on most parts of the face.
In a new experiment that scientists also found that there are changes occur to the audio during lying! Most people do not notice these changes, but some scientists designed a computer program to analyze the sound frequencies and noted that the human once it starts lying to the slight curvature of the curve occurs in your chart, his voice,
Bandits pts were able to fool these devices brilliantly did not show any significant changes to them. But new scientific research, the researchers found in this area and after a lot of experiments that when a person starts lying at this moment changes occur on the face lasting for fractions of a second, and most people do not notice these changes, but photography fast show these changes clearly on most parts of the face.
In a new experiment that scientists also found that there are changes occur to the audio during lying! Most people do not notice these changes, but some scientists designed a computer program to analyze the sound frequencies and noted that the human once it starts lying to the slight curvature of the curve occurs in your chart, his voice,