Lecture 7 - I II Visual Sensation and Perception A We Dont...

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I. Visual Sensation and Perception A. We Don’t See Things Exactly As They Are 1. Sensat. and Percep. Defined 2. Perception and 4 Gestalt Principles 3. Cues for 3-Dimensional Vision B. Our Experiences Influence Our Perception 1. Optical Illusions 2. Bottom-Up vs. Top-Down Processing 3. Brain Plasticity II. Development, introd. Note: some pictures deleted from posted slides to reduce file size
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SOME specialization in hemispheres: - L side has ‘language centers’ – Wernicke’s, Broca’s - R side good with spatial info. (e.g. visual maps) - To an extent, L processes positive emotions and R negative ones - But that’s about it. Almost all tasks require both. - Also, lots of caveats (e.g. women show more crossover at corpus collosum, left-handers tend to show less hemispherization, older people tend to use more of their brain in completing certain tasks).
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—detection of stimuli -- involves transduction (process of converting external energy from environment into neural impulses), occurs at receptor neurons in eyes, ears, skin, etc. Perception
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Lecture 7 - I II Visual Sensation and Perception A We Dont...

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