Beauty study using morphing of faces.

I remember reading a study from Nature in the early 90's where they found by 'morphing' faces with a little asymmetry in specific directions, they were able to get higher attractiveness ratings from college age student samples. I couldn't find that exact study for this post, but here's a similar one.
Interesting study.
"Numerous studies indicate that human beauty may not be simply in the eye of the beholder or an arbitrary cultural artifact. It may be an ancient, hardwired, universal, and potent behavior-driver, on a par with hunger or pain, wrought through eons of evolution that rewarded reproductive winners and killed off losers."
and
"In the traffic-stopping female face created for this experiment, 200 facial reference points all changed in the direction of hyperfemininity: larger eyes, a smaller nose, plumper lips, a narrower jaw, and a smaller chin."

In a few related studies I looked up, there seems to be a controversy as to whether a little asymmetry in a face is more or less desirable.


http://www.onaantrekkelijk.be/achtergronden/featbeauty.pdf

http://www.uni-regensburg.de/Fakultaeten/phil_Fak_II/Psychologie/Psy_II/beautycheck/english/index.htm