MaqFacs: Facial Movement Maps
We have developed a facial movement map, describing the proposed movements for macaque facial muscles. Below you can see one of these maps overlaid on a macaque face image. The circles represent the muscle origins and the lines represent the length of the muscle body. The muscle will contract towards the origin, thus giving an indication of what the movement will look like. Captions for these muscle abbreviations can be seen at the bottom of this page. We have expanded on the FACS and ChimpFACS by including three notable ear movements identified by three distinct muscles. These figures are from a paper by Waller and colleagues soon to appear in Physiology and Behavior.
Preview of Several Upper Facial Movements
Here is the same set of facial muscles for a human.
Key for the facial muscles shown above
fr = frontalis, pr = procerus, cs = corrugator supercilli, ooc = orbicularis oculi, lsan = levator labii superioris alaeque nasi, lls = levator labii superioris, na = nasalis, zy = zygomatic major, ca = caninus, ri = risorius, oom = orbicularis oris, dao = depressor anguli oris, dl = depressor labii inferioris, m = mentalis, oa = orbito-auricularis, sa = superior auricularis, ia = inferior auricularis
For more information on the development of the Macaque Facial Action Coding System contact Dr. Lisa Parr (parr@rmy.emory.edu).