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Perception2

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Perception2

  1. 1. INTRODUCTION TO PSYCHOLOGY Perception
  2. 2. Perception <ul><li>“ Perception refers to the interpretation of what we take in through our senses. In terms of optical illusions this means our eyes.” </li></ul><ul><li>Simply put, our brains are tricked into seeing something which may or may not be real. </li></ul>http://www.keele.ac.uk/depts/aa/widening/uniworld/webclub/rs/optical.htm
  3. 3. Factors that Influence Perception <ul><li>The Object of Perception: </li></ul><ul><li>some things in our environment tend to attract attention </li></ul><ul><li>Backgrounds and Surroundings </li></ul><ul><li>our surroundings at the moment of perception will affect our perceptions </li></ul><ul><li>The Perceiver </li></ul><ul><li>we each bring unique experiences and personal points of view to each situation </li></ul>
  4. 4. In order to make sense of our world our brains try to see patterns or shapes that are recognizable. This principle is called “grouping” . http://www.keele.ac.uk/depts/aa/widening/uniworld/webclub/rs/optical.htm
  5. 5. The mind forms shapes that don't exist http://psycharts.com/opt_illus.html
  6. 6. http://psycharts.com/opt_illus.html
  7. 7. Parallel Lines?   http://psycharts.com/opt_illus.html
  8. 8. Embedded Images http://psycharts.com/opt_illus.html
  9. 9. http://psycharts.com/opt_illus.html
  10. 10. 2 dimensional chalk drawing http://psycharts.com/opt_illus.html
  11. 11. http://psycharts.com/opt_illus.html
  12. 12. After a Necker cube is perceived from one perspective, it naturally tends to change to the other in about 3 seconds.   http://psycharts.com/opt_illus.html
  13. 13. <ul><li>When you look at the top figure, your visual system will organize the elements into a box. The box will reverse, as in the Necker Cube illusion. The elements in the bottom figure have terminations and do not readily group into a box figure that shows reversals </li></ul>http://dragon.uml.edu/psych/box_1.html                               
  14. 14. How fast do you switch? http://psycharts.com/opt_illus.html
  15. 15. You will see it flip into a second staircase <ul><li>M.C. Escher used complex variations on this illusion to achieve some wonderful effects like showing representations of people walking in opposite directions, both descending. He also joined staircases into an appearance of infinite ascent/descent . </li></ul>http://dragon.uml.edu/psych/stair.html
  16. 16. M.C. Escher
  17. 18. The shades of red are identical The difference in the appearance is related to the influence of the backgrounds . http://psycharts.com/opt_illus.html Compare the shades of red…
  18. 19. http://psycharts.com/opt_illus.html When you look at the figure you will see either a vase or two faces. If you continue to look, the figure will appear to shift to the alternative organization
  19. 20. Old Woman or Young Girl? http://psycharts.com/opt_illus.html
  20. 21. Man/Woman http://psycharts.com/opt_illus.html
  21. 22. Shimmer http://psycharts.com/opt_illus.html
  22. 23. Any movement you see is an illusion! http://psycharts.com/opt_illus.html
  23. 24. http://psycharts.com/opt_illus.html
  24. 25. Straight Lines? http://psycharts.com/opt_illus.html
  25. 26. http://www.at-bristol.org.uk/Optical/Hermann_main.htm Hermann Grid                                                                                                                                        
  26. 27. Impossible Triangle and Trident http://psycharts.com/opt_illus.html
  27. 28. What is wrong with this sign? http://www.keele.ac.uk/depts/aa/widening/uniworld/webclub/rs/optical.htm
  28. 29. One more… Perspective is evoked in this image by the pattern, and the lines on the wall which converge on to a common point in the distance. http://www.sapdesignguild.org/resources/optical_illusions/perspective.html & http://www.killsometime.com/illusions/Optical-Illusion.asp?Illusion-ID=36
  29. 30. THE END

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