Thank you for signing up for the concentration and memory experiment via the web. We hope to make this as convenient and painless as possible for you.

The experiment is a series of 6 concentration games. You remember concentration, don't you? In each of these games, there are 2 copies of 8 faces. The games will start with 16 cards dealt face down. You're task is to turn over cards with matching faces. If you successfully find a matching pair of faces, the cards will remain face up. If the cards don't match, they are automatically turned back over.

The upcoming experiment makes extensive use of Macromedia's free Internet player Shockwave. If you aren't sure whether your computer has Shockwave installed or not, you can visit Macromedia's test site to find out.