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P. sy. c. h. o. l. o. g. y. 2. 3. 2. 0. C. o. g. ni. t. ion . a. nd. Perce. p. t. ion. :. Thinki. n. g and S. ee. in. g. Dr. . . M. a. tt. h. ew. T. a. t. a. De. pa. rt. m. e. n. t. o. f. P. s. y. c. h. o. lo. g. y . a. nd . Ne. u.

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  1. P sy c h o l o g y 2 3 2 0 C o g ni t ion a nd Perce p t ion : Thinki n g and S ee in g Dr . M a tt h ew T a t a De pa rt m e n t o f P s y c h o lo g y a nd Ne u ro s c i e n ce U ni v e rs it y o f L et hb r idg e

  2. Objective Gain insight and knowledge into the functioning of the mind. Learn to think critically and creatively about perplexing questions. Discover weird and interesting things about perception and cognition.

  3. The Plan • Sensory Physiology • Hearing • Vision • Attention • Memory Perception Cognition

  4. Text • Selected readings available at the bookstore • Sensation and Perception, Coran, Porac & Ward on reserve in library • Cognitive Psychology, Robinson-Riegler on reserve

  5. Evaluation • Mid-Term 1 15% • Mid-Term 2 30% • Final 45% • Ideas Journal 10% Midterms and final are WebCT taken in the WebCT Test Centre

  6. Ideas Journal • Record your thoughts and questions about perception and cognition • Keep track of your ideas - you never know when you’re going to have a good one! • You will be graded on how good your ideas are!

  7. A Good Idea: • “the size of your eye has to be just right to match the focusing power of the cornea. How does the eye know when to stop growing? Is it because the brain tells it to stop when images are clearly focused? We could test this by looking at the size of the eyeballs in children who are born with cataracts since their brains don’t get accurate visual information from their eyes”

  8. A Bad Idea: • “Matt was wearing a blue sweater today. I like blue. Blue is my favorite color. I wish I had a blue sweater.”

  9. Put Ideas in a Book

  10. Grades Rounding will be down except when I decide otherwise!

  11. Interaction • My Office hours: immediately after class • Email: matthew.tata@uleth.ca • Rules: • 1. No emailing the night before a test • 2. email is for making appointments not asking questions • 3. Put “2320” in the subject line

  12. Interaction • Try to understand on your own FIRST!

  13. If You Were in my Psych 1000 Lecture… • There will be no Gorillas in this course…if you know what I mean.

  14. Perception: It’s not as Easy as it Looks

  15. Purpose of this Lecture: See cool illusions Notice (and begin thinking about) the mysteries of perception and cognition

  16. What is an Illusion? When what you perceive is not what is really out there Visual Illusions happen in your visual system Optical illusions occur when the physical stimulus itself is distorted

  17. What is an Illusion? Optical Illusion Visual Illusion

  18. Size Constancy Big and small = near and far !? System adjusts size based on perceived distance

  19. Ponzo Illusion:

  20. Muller - Lyer Illusion

  21. Kaniza Triangle

  22. Illusory Contours Kaniza Triangle Neurons in higher levels of visual pathways “build” contours from information in lower levels

  23. Apparent Motion Object disappears and reappears somewhere else Visual system “interpolates” motion in between

  24. Frazer Spiral:

  25. Frazer Spiral:

  26. Who did you see?

  27. Reversible Figure The Necker Cube

  28. Impossible Staircase

  29. Shepard Tone

  30. Attention and Perception Your perception of a rich visual environment is an illusion! You actually are only aware of the small part of the scene that you are attending to

  31. Attention and Perception Change Blindness: you can’t notice changes in a scene unless you attend to the location of the change

  32. Attention and Perception

  33. Illusions • Are cool. • Highlight questions about how perception happens. • Make you think.

  34. Next Time: • A bit of philosophy and a bit of biology

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