Facial Feedback Hypothesis
Muscles for Facial Expressions
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Updated: Jun 6, 2026

Using Facial Electromyography to Assess Facial Muscle Reactions to Experienced and Observed Affective Touch in Humans
Published on: March 15, 2019
Ellen Otte1, Ute Habel, Martin Schulte-Rüther
1Institute of Psychology I, RWTH Aachen University, Jägerstr. 17-19, D-52066 Aachen, Germany. ellen.otte@psych.rwth-aachen.de
Observing facial expressions, like happy or angry faces, primes our own facial muscle actions. This perception-action link speeds up compatible responses, supporting common coding theory in social perception.
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