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*BLHS Sensation

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Sensation and Perception
definition and example
show Is the process by which you detect physical energy from your enviroment and encode it as neural signals. EX-feeling a needle prick your finger.  
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perception   show
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bottom- up processing   show
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top- down processing   show
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absolute threshold   show
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show predicts when we will detect weak signals EX- measured as our ratio of "hits" to "false alarms"  
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show below the threshold. EX- being able to taste an ounce of salt in a 2 liter of juice.  
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show This is also called the "just noticeable difference." It is the minimum difference a person can detect between any 2 stimuli 50% of the time. EX-Parents can detect their child's cry among other children's cries  
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Weber's Law   show
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show diminished sensitivity as a consequence of constant stimulation. EX-If you are listening to your radio on a set volume for an hour, and someone comes along and turns the volume up by only 2 levels, you will probably not notice the difference  
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show conversion of one form of energy into another. EX-Transforming sights or wounds into neural impulses our brain can interpret.  
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rods   show
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show retinal receptor cells that are concentrated near the center of the retina and that function in daylight or in well- lit conditions. The cones detect fine detail and give rise to color sensations EX-sunny, spring day  
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show convert light energy to electrochemical neural impulses. EX-Both rods and cones are the photoreceptors  
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dark adaptation   show
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audition   show
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show the greater the composition, the larger the height of the sound wave and the louder the sound EX-dicibels  
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sound localization   show
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frequency theory   show
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conduction deafness   show
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show results from damage to the cochlea, hair cells, or auditory neurons EX-a convential hearing aid being able to restore hearing by amplifying vibrations  
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somatosensation   show
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show is the system that enables you to sense the position and movement of individual parts of your body EX-Nerve endings in your muscles, tendons, and joints  
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vestibular sense   show
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show taste  
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olfaction   show
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optical/ visual illusions   show
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monocular cues   show
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binocular cues   show
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depth perception   show
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schemas   show
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show is the controversial clain that perception can occur apart from sensory input  
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show the study of paranormal events EX- telepathy, precognition, telekinesis  
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