User:Panlaque/sandbox

POLYGRAPH it is defined as the scientific detection of deception through the use or aid of a polygraph.POLYGRAPH is derived from the Greek two words "POLY" means many more, and "GRAPHOS" which means writing.It is a device or instrument capable of recording changes in blood pressure/pulse beats, respiration and galvanic-skin-reflex or GSR as indicative of emotional excitement, specifically of lying when questioned.

POLYGRAPH (popularly referred to as a Lie Detector) measures and record several physiologcal indices such as blood pressure,pulse,respiration, and skin conductivity whilethe subject is asked and answers a series of questions.The balief underpinning the use of the polygraph is that deceptive answers will produce physiological responses that can be differentiated from those associated with non-deceptive answers.

Page: 165 Author: Dr.Felix Lor Valdueza Title of the Book: Crimes And Criminals