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Visual Perception
Objectives

After completing this chapter you should be able to:

  1. Explain why vision is such a formidable task; focusing on the indeterminacies the visual system has to overcome.
  2. Understand how neuropsychological and neuroanatomical findings relate to the behavioral processes of visual perception. How can behavior and physiology successful interact with each other?
  3. Discuss how the visual system resolves ambiguities by making different types of assumptions and describe the assumptions.
  4. Describe the inverse optics problem and give an example.
  5. Compare and contrast the evidence for and against the hypothesis that a part of the human brain is specialized for recognizing faces.
  6. Explain the roles of luminance, shadows, and local contrast in the perception of brightness.
  7. List and define factors in distance perception, then classify them as to whether they are monocular or binocular.
  8. Outline the construction of random dot stereograms and explain why our ability to see them is so amazing.
  9. Contrast the roles of top-down vs. bottom-up processes in visual perception.
  10. Distinguish between the computational and ecological approaches to the study of vision.
  11. Discuss the two main goals of vision and review the evidence for separate visual systems that serve these goals.
  12. Contrast viewer-centered representations with object-centered representations and briefly review the experimental evidence for each.
  13. Compare and contrast the what/where and what/how hypotheses of object location.



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