Machines that can determine a person’s intent based on a few factors.
Summative paragraph from article below.
Current research focuses on three key areas. The first is recognition of gestures and so-called “microfacial expressions” — a poker player might call them “tells” — that flash across a person’s face in about one third of a second. Some researchers say micro expressions can betray a person when he is trying to deceive.
The second area is analysis of variations in speech, such as pitch and loudness, for indicators of untruthfulness.
The third is measurement of physiological characteristics such as blood pressure, pulse, skin moisture and respiration that have been associated with polygraphs, or lie detectors.