1. Sensation and Perception
Chapter 4

2. Sensation and Perception: The Basics
Absolute Threshold
Difference Threshold
Signal-Detection Theory
Sensory Adaptation

3. Quick Quiz 1 Define absolute threshold.
Give two examples of sensory adaptation.
CRITICAL THINKING: Describe a recent situation where you were so involved in something that you did not notice your surroundings. How does that experience relate to signal-detection theory?

4. Vision Light The Eye Color Vision The Blind Spot Rods and Cones
Dark and Light Adaptation
Visual Acuity
Color Vision
After Images
The Color Circle
Cones and Color Vision
Color Blindness

5. Quick Quiz 2 What is visible light?
What is the retina, and what is its function?
Explain how we are able to see color.
CRITICAL THINKING: Imagine that you became completely blind. How might you life be different from the way it is now? How would you have to adjust? What occupations or hobbies might become difficult for you?

6. Hearing
Pitch
Loudness
The Ear
Locating Sound

7. Deafness Conductive deafness Sensorineural deafness
Deafness in the world today

8. Quick Quiz 3 What determines the loudness of a sound?
How is loudness measured?
Describe the two kinds of deafness.
CRITICAL THINKING: Describe a situation in which you or someone you know seemed confused about the direction from which a sound was coming. How was the confusion resolved?

9. Other Senses
Smell
Taste
The Skin Senses
Pressure
Temperature
Pain

10. Body Senses
The Vestibular Sense
Kinesthesis

11. Quick Quiz 4 How does the sense of smell work?
What is the vestibular sense?
CRITICAL THINKING: How might our daily lives be different if we did not have kinesthesis? Give and example.

12. Perception Rules of Perceptual Organization Perception Movement
Closure
Figure-Ground Perception
Other Rules of Organization
Perception Movement
Stroboscopic Motion

13. Depth Perception
Monocular Cues for Depth
Binocular Cues for Depth

14. Perceptual Constancies
Size Constancy
Color Constancy
Brightness Constancy
Shape Constancy

15. Visual Illusions
Brain not the eyes
Cultural differences

16. Quick Quiz 5 List and explain three rules of perceptual organization.
Explain the cues people use to perceive motion and depth.
Describe four perceptual constancies.
CRITICAL THINKING: Give arguments to support or reject the following statement: Because infants and very young children have not had time to organize and make sense of sensory information, Gestalt rules of organization do not apply to them.