The Phi Phenomenon is a seemingly simple illusion. To understand it, take advantage of the following opportunities:

See the Phenomenon for Yourself (QuickTime video)

Read Student Descriptions of their Experience (Before Having Heard the Theories)

Understand What's Actually Being Displayed

See the Color-Changing Version of Phi (Java Applet)

Examine Theories of the Phi Phenomenon (or, HOW CAN THIS BE HAPPENING?!!)

------- The Time Delay Account

------- The Memory Corruption Account

------- The Multiple Drafts Account

------- Additional Commentary

Read Student Descriptions of their Experience (After Having Heard the Theories)