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6.2.1 - Vision In addition patterns of activation of...

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8/17/11 Vision In addition, patterns of activation of ganglia activate feature detectors in visual cortex
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8/17/11 Perception: Introduction Sensation gives us raw data Brain must construct certain patterns in this data in order to allow us to respond to the environment It is these patterns— not the raw data we consciously perceive
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8/17/11 Basics of Perception We sense more than we perceive Attention allows us to extract more information from our senses Our attention is drawn to seemingly important sensations (e.g., the cocktail party effect ) But the selectiveness of attention can lead to inattentional blindness —not perceiving what’s right in front of us
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8/17/11 Visual Perception: Introduction Sensation gives us raw data Brain must identify certain patterns in order to allow us to respond to the environment For vision, these include color, form, depth, motion, and constancy
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8/17/11 Basics of Perception Much of what we know about how visual perception works comes from examining images that violate our brain’s assumptions—that is, illusions
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8/17/11 66
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8/17/11 77 3-D Illusion
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8/17/11 88
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8/17/11 99
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8/17/11
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