Facial expression caused by corrugator supercilii
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For example, Dimberg [2] showed that mere photographic presentations of angry and happy facial expressions induced corrugator supercilii.
Corrugator supercilii muscle activity is considered an objective measure of valence because it increases in response to negatively valenced facial expressions.
Relationships among Facial Mimicry, Emotional Experience, and Emotion Recognition
The Muscles of Facial Expression - Orbital Group - Nasal Group - Oral Group - TeachMeAnatomy
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Description:The publisher's final edited version of this article is available at Emotion See other articles in PMC that cite the published article. Abstract Corrugator supercilii muscle activity is considered an objective measure of valence because it increases in response to negatively valenced facial expressions angry and decreases to positive expressions happy. The authors sought to determine if corrugator activity could be used as an objective measure of positivity-negativity bias.
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