1. Chapter 8.3: Perception, Illusions, and ESP
Mr. McCormick
Psychology

2. Do-Now: (Discussion) What are optical illusions?
Why do you think we experience them?
Provide an example of one optical illusion that you have experienced.

3. Perceptual Organization
Gestalt:
The experience that comes from organizing bits and pieces into meaningful wholes

4. Perceptual Organization

5. Perceptual Organization

6. Depth Perception Depth Perception:
The ability to recognize distances and three-dimensionality

7. Monocular Depth Cues Monocular Depth Cues:
Cues that can be used with a single eye
E.g.:
Relative Height
Interposition
Light and Shadows
Texture/Detail
Motion Parallax
Linear Perspective
Relative Motion

8. Monocular Depth Cues
How can you use monocular depth cues to perceive distance in this image?

9. Binocular Depth Cues Binocular Depth Cues:
Cues that depend upon the movement of both eyes
E.g.:
Convergence
Retinal Disparity

10. Video Clip: “Is Seeing Believing?”
Why do the people in this “Illusion Room” appear to change heights as they switch positions?
How are our monocular depth cues being misled?

11. Illusions
Illusions:
Perceptions that misrepresent physical stimuli

12. Illusions

13. Illusions

14. Illusions

15. 3-D Sidewalk Illusions

16. 3-D Sidewalk Illusions

17. 3-D Sidewalk Illusions

18. 3-D Sidewalk Illusions

19. 3-D Sidewalk Illusions

20. Extrasensory Perception
Extrasensory Perception (ESP):
An ability to gain information by some means other than the ordinary senses
Types of ESP:
Clairvoyance
Telepathy
Psychokinesis
Precognition

21. Review What are Gestalts? What do they imply about perception?
What are the two ways in which humans perceive depth? Provide one example of each.
What are illusions? What do they imply about perception?
What is ESP? Why has science concluded little about this subject?

22. Homework Study for Test Chapter 7: Altered States of Consciousness
Chapter 8: Sensation & Perception