- Turn to a neighbor and look into his or her eyes. Name the parts of the eye
that you can see.
- Now look into his or her eyes again. Record everything that you can see
reflected in them.
- What are the tiny glints of light that we see in other people’s eyes?
- Explain in your own words Shree Nayar’s new tracking technology.
- What are some of the problems with other kinds of eye-tracking technology
that already existed?
- What is an environment map?
- Name three possible uses for Nayar’s eye-tracking technology.
- How could this technology change the way people use computers?
- How could eye-tracking technology improve video games? Think up two specific
improvements you think might be possible with this technology. See www.sciencedaily.com/releases/2006/08/060818005632.htm.
- Why might some people not want to allow a computer track their eyes?
- If your teacher could track your eyes during class, would that make you
- Ask a neighbor to tell one thing that’s true and then one thing that’s
false. While you watch their eyes, have them repeat the truth and the lie three
times each. Do they move their eyes differently when they tell the truth than
they do when they lie?
- Now ask the same neighbor a factual question, such as, What did you eat for
dinner last night? Have him or her give two answers—the truth and a lie—without
telling you which answer is which. If you look in the person’s eyes while he or
she answers, can you guess which is the falsehood?
- Now, while you stare into your neighbor’s eyes, ask him or her to look to
one side and stare at an object. From your perspective, does that object appear
in your neighbor’s pupil or does it appear a little to the side of the pupil
that’s closer to their nose? Can you explain why the object appears where it
does in the reflected view you see?
Imagine you have created a Web site and can track the eyes of the people who use your site. Could eye tracking tell you which parts of your site visitors use most? How could you use that knowledge to make your site even better?
- Do portrait paintings show reflections in eyes? Go to a museum and look at
five different painting by different artists. Do any of the paintings depict
reflection of light in the eyes of the subject? (If you don’t have time to visit
a museum, you can search for portrait paintings on Google Images.) Write a short paper
comparing the ways that different painters paint eyes.
- Pretend you are the manager of a store. How would you use eye-tracking
technology to figure out which products your customers like most?
What is an ellipse? How can you draw an ellipse using a pencil, string, and two pins? See www.mathopenref.com/constellipse1.html or, for a video, see www.metacafe.com/watch/399991/draw_a_perfect_ellipse/.