ranjan

Deception is universal phenomenon in human communication & source of moral indignation prevailing in all cultural systems. As such, several techniques of lie detection has been developed over the centuries. One of the first methods of lie detection was done in China in 1000 B.C. The suspect was to chew raw Rice while being questioned. Immediately, thereafter rice was examined. If it was dry, suspect was assured to be guilty of fraud. The assumption was that lie is accompanied by honest signals of body (Saliva) which reveal the anxiety experienced by the suspect. This principle of expressions, quite interestingly, of emotions with deceptive communication is reflected machine based learning. The second part is scientifically based e.g. Polygraph, phrenology and Graphology. This is followed by modern day approaches - Facial Action Coding System (FACS) Functional MRI and Brain Finger printing. The Artificial Intelligence system called 'Deception Analysis & Reasoning