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Thee key themes of sensation
1. Transduction (translation of stimulus
energy into an electrical code/neural
impulse). Each sense system has receptor
cells (e.g., rods and cones in the eye)
2. Adaptation: senses are especially sensitive
to changes over time
3. Top-down and Bottom-up processing
How do your expectations and culture affect your
perceptions? Examples of top-down processing
collect and sumerize visual info which is moved out of the back of the eye through bundels of ganglion axons called optic nerve
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