EMFACS — Emotional FACS
A subset of FACS that scores only the Action Units that have been empirically linked to emotional meaning, allowing faster coding when the research question is affective.
EMFACS (Emotional FACS) was developed by Ekman and Friesen as an efficient alternative to full FACS coding when the goal is to detect emotion rather than describe every facial movement. It focuses on the AUs and AU combinations with the strongest evidentiary link to emotional states.
Most modern facial analytics platforms operationalize EMFACS-style mappings under the hood — combining detected AUs into probability scores for the seven universal emotions plus dimensional valence and arousal.
Related terms: facial action coding system, action unit, seven universal emotions
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