is an excellent science project that has unlimited potential, and can be a real
winner in a science fair. Let your creativity run with this one! All you need
is a computer with software that can work with image files (e.g., photoshop) and
a digital camera. You can also do this project using a film camera and have access
to a darkroom.
Asymmetric Facial Expressions:
You may not notice it at first, but people
have asymmetric facial expressions. That means their expressions on the left and
right side of the face are not the same. At peak facial expression, the face is
often asymmetric, and the left side of the face in particular seems to be most
expressive. The effect appears even more pronounced in young and adolescent adult.
a look at the three images below. Only the top is an actual photo! The other two
were generated using data from the first image, to create an image of two-right
faces, and two left faces.
side image clearly shows a sign of grief that is not shown in the image that contains
two right faces.
can you go from here?
you have a digital camera ask your friends to pose using different expressions.
Make sure you catch your subject straight on for best results.
there a difference in asymmetry between the sexes?
there an age dependent factor?
there any cultural differences?
the effects the same for a real smile as opposed to someone who is asked to smile?
See if you can catch real expressions, perhaps taking your pictures while your
subject is watching television or involved in a social situation.
the effect go past humans? Do dogs or cats demonstrate asymmetric facial expression?
there a left -right handed effect? Or, does the left side always show a more pronounced
out what the reason is behind the effect!
is a wealth of scientific literature about asymmetry in facial expressions but
you will probably have to ask your teacher to explain some of the more difficult