Are shown to not support the hypothesis that facial-symmetry would have
a possible effect on the distinguishing of reversed faces. However,
this does not mean that facial symmetry and photo preference are unrelated.
Many other factors could have affected the outcome. Some possible factors
that were overlooked were the lack of color, and the lack of equal light on
both sides of each subject. Possible future research and experiments would be to eliminate those factors
stated above, and possibly to determine the individual symmetry of each facial
characteristic, because some attributes of some subjects were great in
symmetry, but one or two of their characteristics were not symmetrical.