Adult persistence of head-turning asymmetry

Nature 421, 711 (2003).10.1038/421711a

Some confusion over the definition of the term 'right kiss' as used in this communication has resulted from the depiction of Auguste Rodin's statue The Kiss, in which the male turns his head in the vertical plane to the left. However, this sculpture only served to illustrate the definition of a right kiss, which corresponds to a position in which the nose of each participant is to the right of the nose of the other. The strict criteria applied during my observations excluded couples in the position of Rodin's statue and ensured that a right kiss incorporated a turn and a tilt with the head to the right side.