In this lesson, we have studied both sensations and perceptions. People often become fascinated when their brain seemingly interprets (or perceives) things that really are not sensed. Such things are often called "optical illusions' or 'perceptual puzzles."

1. Access the website "Illusions and Paradoxes: Seeing is Believing?"
2. Links to an external site.
3. Scroll down to view different examples of perceptual illusions. There are at least 45 different puzzles. Choose puzzles to examine thoroughly.
4. Choose two puzzles and address the following in two separate paragraphs:

• • Describe the two puzzles you chose.
  • Explain why these particular illusions 'fool us' (integrating information from the lesson, PowerPoint, textbook, or a website to support your comments)

Include citations and references, read one of your classmates ' posts, and respond.