English: The aurofacial asymmetry is the asymmetry of the eyes, nose and mouth with respect to the median plane between the ears, and was predicted by the Axial Twist Theory. (A) The average face from N = 200 (Blanz & Vetter, 1999; Troje & Bülthoff, 1996) with the tragus of the ears aligned with the horizontal axis of the im- age plane. Red-shaded area denotes significant aurofacial asymmetry to the left side. The asymmetry with respect to the symmetric reference face is displayed exaggerated by a factor five. (B) Magnitude of the au- rofacial asymmetry (with respect to the symmetric reference face) along the three colored lines in (A). The asymmetry expresses the angular difference for each vortex between the average face and the symmetric reference face. Vertical lines in both panels are symmetrically arranged around the mid-plane between the tragi.

Full-size DOI: 10.7717/peerj.7096/fig-2.

This is figure 2 from Marc H. E. de Lussanet. Opposite asymmetries of face and trunk and of kissing and hugging, as predicted by the axial twist hypothesis. PeerJ, 7:e7096, 2019. doi: 10.7717/peerj.7096.