: Developed by Ekman and Wallace V. Friesen in 1978, this is the comprehensive system used in the show to taxonomize every human facial expression by "Action Units" (AUs).
While the show is a fictional crime drama, it is grounded in real-world psychological studies. Key papers and concepts that form the "paper trail" or scientific foundation of the series include: Core Scientific Foundation Lie to Me (2009–2011)
The TV series (2009–2011) was heavily inspired by the pioneering scientific research of Dr. Paul Ekman , specifically his work on facial expressions and micro-expressions . : Developed by Ekman and Wallace V
You can find more detailed critiques of the science in each episode on Paul Ekman's official website, where he blogged throughout the show's original run. Lie to Me (TV Series 2009–2011) - Full cast & crew - IMDb Key papers and concepts that form the "paper
: The main cast featured Tim Roth as Cal Lightman, Kelli Williams as Dr. Gillian Foster, Brendan Hines as Eli Loker, and Monica Raymund as Ria Torres.