Study of Posed Emotion in Facial EMG Asymmetry

37 subjects' facial electromyographic activity at the corrugator and zygomatic muscle regions were recorded while they were posing with happy and sad facial expressions. Analysis showed that the mean value of EMG activity at the left zygomatic muscle region was the highest, followed by the righ...

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Bibliographic Details
Published in:Perceptual and motor skills 2006-04, Vol.102 (2), p.430-434
Main Authors: Zhou, Renlai, Hu, Senqi
Format: Article
Language:English
Subjects:
Adolescent
Adult
Electromyography
Emotions
Emotions - physiology
Face
Facial Expression
Facial Muscles - physiology
Female
Fourier Analysis
Functional Laterality - physiology
Humans
Male
Muscular system
Signal Processing, Computer-Assisted
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Summary:37 subjects' facial electromyographic activity at the corrugator and zygomatic muscle regions were recorded while they were posing with happy and sad facial expressions. Analysis showed that the mean value of EMG activity at the left zygomatic muscle region was the highest, followed by the right zygomatic, left corrugator, and right corrugator muscle regions, while a happy facial expression was posed. The mean value of EMG activity at the left corrugator muscle region was the highest, followed by those for the right corrugator, left zygomatic, and right zygomatic muscle regions while a sad facial expression was posed. Further analysis indicated that the power of facial EMG activity on the left side of the face was stronger than on the right side of the face while posing both happy and sad expressions.
ISSN:0031-5125
1558-688X
DOI:10.2466/pms.102.2.430-434