| Sensation and Perception
When you have studied this chapter, you should be able to:
- Distinguish between sensation and perception, and define sense organ, sensory receptor cells, and stimulus.
- Define transduction.
- Compare and contrast the absolute threshold and the difference threshold.
- Understand sensory adaptation.
- Define psychophysics, and understand Weber's law.
- Understand the nature of light.
- Describe how the different parts of the eye work together to produce vision.
- Describe the roles played by the rods and cones in both dark adaptation and light adaptation.
- Compare and contrast the trichromatic theory and the opponent‑process theory of color vision, describing the evidence for each.
- Understand the nature of sound.
- Explain how different parts of the ear work together to produce audition (the sense of hearing).
- Describe the roles played by the vestibular organ and the kinesthetic receptors in providing information about orientation and movement.
- List the four different general types of skin receptors, and describe the three types of stimuli that can be detected by the skin.
- Explain how we experience pain, and describe how pain is regulated.
- Define phantom limb pain, and identify its possible causes.
- List the basic taste sensations, and identify other factors that influence our perception of taste.
- List the primary qualities of odors, and explain the role of pheromones in regulating behavior.
- Name and describe the Gestalt principles of perceptual organization.
- Describe the kinds of perceptual constancy.
- Identify the monocular cues and binocular cues of depth perception.
- Distinguish between the visual illusions, and describe how they are produced.
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