Intramuscular electrical stimulation of facial muscles in humans and chimpanzees: Duchenne revisited and extended

Bridget M. Waller, Sarah Jane Vick, Lisa A. Parr, Kim A. Bard, Marcia C.Smith Pasqualini, Katalin M. Gothard, Andrew J. Fuglevand

Research output: Contribution to journalArticle

41 Scopus citations

Abstract

The pioneering work of Duchenne (1862/1990) was replicated in humans using intramuscular electrical stimulation and extended to another species (Pan troglodytes: chimpanzees) to facilitate comparative facial expression research. Intramuscular electrical stimulation, in contrast to the original surface stimulation, offers the opportunity to activate individual muscles as opposed to groups of muscles. In humans, stimulation resulted in appearance changes in line with Facial Action Coding System (FACS) action units (AUs), and chimpanzee facial musculature displayed functional similarity to human facial musculature. The present results provide objective identification of the muscle substrate of human and chimpanzee facial expressions- data that will be useful in providing a common language to compare the units of human and chimpanzee facial expression.

Original languageEnglish (US)
Pages (from-to)367-382
Number of pages16
JournalEmotion
Volume6
Issue number3
DOIs
StatePublished - Aug 2006

Keywords

  • Duchenne
  • Facial muscles
  • Intramuscular electrical stimulation
  • Primates

ASJC Scopus subject areas

  • Psychology(all)

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