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| the process of receiving information from the environment |
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| the process of assembling and organizing sensory information to make it meaningful |
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| light as it originates from the sun or a bulb before it is broken into different frequencies |
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| the clear outer covering of the eye, behind which is a fluid |
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| a colored circular muscle that opens and closes, forming larger and smaller circles to control the amount of light getting into the eye |
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| the part of the eye that focuses an object on the back of the eye |
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| the back of the eye, which contains millions of receptors for light |
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| the portion of the retina through which the optic nerve exits and where there are no receptors for light waves |
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| a visual receptor most sensitive to the violet-purple wavelength; very sensitive for night vision; "sees" only black and white |
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| a visual receptor that responds during daylight; receives color |
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| inability to perceive certain colors, such as red and green |
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| the firing of the cones not used after viewing something steadily in order to bring the visual system back into balance |
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| how high or low a sound is |
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| the complexity of a sound |
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| a measure of how loud a sound is (its intensity) |
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| a piece of skin stretched over the entrance to the ear; vibrates to sound |
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Definition
| a snail-shaped part of the ear, filled with fluid and small hairs that vibrate to incoming sound |
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Definition
| receptor cells for hearing and sense of smell; found in the cochlea and the nasal cavity |
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| bundle of nerves carrying sound to the brain |
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| the nerve receptors in the skin that respond to pressure, temperature, or pain |
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| tiny haris (that receive odor molecules). Some act as receptors in the nose |
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| units that receive odor molecules and communicate their nature to the brain |
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Definition
| odor chemicals that communicate a message |
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| chemical receptors on the tongue that decode molecules of food or drink to identify them |
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Definition
| the ability to retain the size of an object regardless of where it is located |
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Definition
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Definition
| the ability to retain the size of an object regardless of where it is located |
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| the ability to perceive an object as the same color regardless of the environment |
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Definition
| by taking an average, the human visual network keeps brightness constant as an object is moved to various environments |
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| the ability to keep objects in the environment steady |
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| the ability to see objects in space |
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| a large table with plexiglas, used to demonstrate depth perception in small children |
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| the experimentor who performed the visual cliff tests on small children |
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Definition
| the difference between the image provided by each eye. When the images are brought together in the brain, they provide a sense of depth |
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| depth perception based on how rough or smooth objects appear |
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| organized whole, shape, or form |
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| a perceptual cue in which we group like things together |
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| the process of filling in the missing details of what is viewed |
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Definition
| a perceptual cue in which we group together things that are near one another |
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| two pictures in which one line seems longer than the other but really isn't |
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| an illusion in which the same object is seen as two alternating figures - first one, then the other |
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Definition
| stimulation presented below the level of consciousness |
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