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| the process of receiving information from the environment. |
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| the process of assembling and organiszing 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 reseptors for light |
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| the portion of the retine through which optic nerve exists and were there are no reseptors for light waves |
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A visual receptor most sensitive to the violet-purple wavelengths; 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 in balance |
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| a measure of how loud a sound is |
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| A piece of skin stretched over the entrance to the ear; vibrates to sound. |
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| A snail-shaped part of the ear, filled with fluid and small hairs that vibrate to incoming sound |
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| 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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| 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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| Organized while, shape or form |
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| Two pictures in which one line seem 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 on, then other. |
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| Stimulation presented below the level of consciousness. |
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