After reading this chapter, you should be able to

• Define perception.
• Describe how our sensory systems affect our perception of the world.
• Explain whether we control our perceptions or can perceive automatically.
• Explain why we sometimes perceive things incorrectly.
• Explain what it means for something to be “more than the sum of its parts.”
• Describe how perception aids in action.
• Identify the purpose of perception.