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Facial Action Coding System
Facial Action Coding System The Facial Action Coding System is a standardized, objective way to measure facial behavior by coding visible facial movements linked to underlying muscles rather than guessing what an expression means.
The Facial Action Coding System is a standardized, objective way to measure facial behavior by coding visible facial movements linked to underlying muscles rather than guessing what an expression means. It breaks facial activity into specific action units, with additional descriptors for broader or non-facial-muscle movements that affect appearance.