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The Senses Psychology
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Sensation and Perception (Work together)
Bottom-Up Processing (Sensation) Sense receptors detect stimuli and send to the brain the brain then integrates sensory information Top-Down Processing (Perception) information processing guided by higher-level mental processes How we interpret sensations- based on expectations and previous experiences Top Down is the involvement of the brain in making meaning out of stimuli. For example there are people who can see everything clearly (sensation) but cannot recognize even their own faces (perception). Placing meaning to sensations and stimuli is the act of perception
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SIGHT
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How does Vision Occur?
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More Vision
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Feature Detection The theory that certain nerve cells in the brain, called feature detectors, receive specific signals in the brain. That is, there are specific cells that process horizontal lines, vertical lines, motion, posture, emotion. Allows instant analysis
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Color . The retina contains three different color receptors: red, green, and blue. They combine to form all perceptible colors.
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The Electromagnetic Spectrum
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Color Blindness When you're missing one or more of the color receptors in your retina. 2% of people Most frequently men Are you color blind?
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Sight Problems
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Hearing
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Deafness Sensor neural Deafness- hearing loss that occurs from damage to the inner ear, the nerve that runs from the ear to the brain (auditory nerve), or the brain. Conduction Deafness- earing loss due to problems with the bones of the middle ear.
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Hey! Don’t wear headphones when your walking to school on 2nd Street!
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