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Notes 2-27-08 - perception Video woman can see faces but...

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Cumulative Final Exam Tues, May 20 th 4-6 pm in Totman Gym. Chapter 5 Sensation & Perception Selective Attention Our conscious awareness processes only a small part of all that we experience. We intuitively make use of the information we are not consciously aware of. Inattentional Blindness Inattentional blindness refers to the inability to see an object or a person in our midst. (Basketball & Gorilla Video) Change Blindness Change blindness is a form of inattentional blindness in which two-thirds of individuals failed to notice a change in the individual asking for directions. If a change is not central to what is going on, we may miss it. Sensation & Perception How do we construct our representations of the external world? To represent the world, we must detect physical energy (stimulus) from the environment and convert it into neural signals. This is a process called sensation . When we select, organize, and interpret our sensations, the process is called
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Unformatted text preview: perception . Video- woman can see faces but doesn’t know whose they are, even her own. She recognizes photo of her mother because of her shirt. Bottom-Up Processing Analysis of the stimulus begins with the sense receptors and works up to the level of the brain and mind. A / - \ A Letter “A” is really a black blotch broken down into feature by the brain what we perceive as an “A”. Top-Down Processing (Blotches that were the Dalmatian) Information processing guided by higher level mental processes as we construct perceptions, drawing on our experience and expectations. (Rotating face mask illusion- sensory information tells you it is a concave mask, but top-down knowledge says that faces are convex, so you just can’t see it any other way.) Making Sense of Complexity Our sensory and perceptual processes work together to help us sort out complex images. (Bev Doolittle Paintings)...
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