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FALL 2008 Sensation & Perception

FALL 2008 Sensation & Perception - SENSING AND...

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SENSING AND PERCEIVING What you should know Brain fundamentals for perception Distinction between sensation and perception Perceptual constancies Distance cues Apparent distance and illusions Context and perception
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Sensory Processes How does the world get inside our heads? How are stimulus energies transduced to neural activity? How is information in the stimulus coded in the brain? Perceptual Processes How is meaning extracted from the products of sensory processing Many basic processes of sensing and perceiving are very fast, automatic, and non-conscious or pre-conscious. We tend to take them for granted.
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DISTAL stimulus PROXIMAL stimlus RETINAL IMAGE
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"SIGHTING TEST" OF EYE DOMINANCE 1. With both eyes open, hold up the index finger of right hand about 12" directly in front of your face and align it with the vertical bar. 2. Close your left eye . Are finger and bar still aligned? 3. Close your right eye . Are finger and bar still aligned?
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constant even though the “proximal stimulus” (e.g., retinal image) constantly changes . Example : shape constancy . The shape of the retinal image of an object differs according to object motion and viewpoint . But we don’t usually perceive the object’s shape as changing. PERCEPTUAL CONSTANCIES
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FALL 2008 Sensation & Perception - SENSING AND...

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