In the span of a heartbeat—literally 1/25th of a second—a flash of anger crosses a witness’s face before settling into a practiced smile. In that same blink, a job candidate’s upper lip tightens in contempt, quickly masked by enthusiasm. You missed both. Almost everyone does.
This is the core of the tool. It displays images or videos of faces at increasing speeds. You might start at 500 milliseconds and work your way down to 40 milliseconds. This "over-training" makes real-life expressions feel like they are moving in slow motion. 3. Contextual Integration micro expressions training tool