*BLHS Sensation
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| 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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| show | information processing guided by higher level mental processes, as when we construct perceptions drawing on our experience and expectations. EX-when looking at a painting, we pay attention to the aspects of the painting that will give observations meaning
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| show | the minimum stimulation necessary to detect a senses 50 percent of the time. EX-detecting light, sound, pressure, taste, or odor
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| signal detection theory | show 🗑
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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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| difference threshold | show 🗑
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| show | The principle that, to be perceived as different, 2 stimuli must differ by a constant minimum percentage (rather than a constant amount) EX-If the price of a $1 chocolate bar goes up by 10 cents, shoppers might notice the change
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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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| show | retinal receptors that detect black, white, and gray; necessary for peripheral and twilight vision, when cones don't respond. EX-movie theater/ shadows
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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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| photoreceptors | show 🗑
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| show | results from a shift from predominantly cone vision to predominantly rod vision. EX-sudden darkness
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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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| show | the process by which you determine the location of a sound EX- If your friend calls to you from your left side, your left ear hears a louder sound than your right ear
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| show | the rate of the neural impulses traveling up the auditory nerve matches the frequency of a tone, enabling you to sense its pitch EX-When tuning an instrument...you listen to a device that produces the tone, and then being able to match it with your pitch
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| show | is a loss of hearing that results when the eardrum is punctured or any of the ossicles lose their ability to vibrate EX-When hearing aids only help some people.
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| nerve deafness | show 🗑
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| show | is a general term for 4 classes of tactile sensations: touch/ pressure, warmth, cold, and pain
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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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| gustation | show 🗑
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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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| show | are clues about distance requiring two eyes
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| show | is the ability to judge the distance of objects EX-Being able to judge how far a car is away from you when driving
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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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