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| The process by which sensory systems and the nervous system receive stimuli from the environment. |
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| Information processing that analyzes the raw stimuli entering through your many sensory systems. |
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| The process of organizing and interpreting incoming sensory information. |
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| Information Processing that draws on our experiences and expectations to interpret incoming sensations. |
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| The minimum amount of stimulation needed to detect a particular stimulus. |
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| The minimum difference to detect that two stimuli are not the same. |
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Predicts how and when we detect the prexsence ofa faint stimulus.
3 variables: Stimulus, Environmental, Organismic |
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| Diminished sensitivity to a constant and unchanging stimulation |
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| Focusing conscious awareness on a particular stimulus to the exclusion of others. |
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| Clear, curved bulge on the front of the eye that bends light rays to begin focusing them. |
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| A ring of muscle tissue that forms the colored portion of the eye and regulates the size of the pupil. |
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Definition
| The adjustable opening in the center of the iris, which controls the amount of light entering the eye. |
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| Transparent structure behind the pupil that changes shape to focus images on the retina. |
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| Light sensitive surface at the back of the eyeball. |
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| Specialized cells in every sensory system of the body that can turn other different kinds of energy into action potentials (neural impulses) that the brain can process. |
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| Visual receptor cells located in the retina that can detect only black, white, and gray |
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Definition
| Visual receptor cells located in the retina that can detect sharp details and color. |
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| The Nerve that carries visual information from the eye to the occipital lobes of the brain. |
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Definition
| The point at which the optic nerve travels through the retina to exit the eye caused by a lack of rods and cones at this point. |
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| Trichromatic (three-color) theory |
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Definition
| A theory of color vision that says cones are sensitive to red, green or blue light- the three colors that combine to create millions of color combinations. |
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Definition
| A theory of color vision that says color is processed by cones organized in opponent pairs (red-green, yellow-blue, and black-white) |
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| The major organ of hearing, sound waves changed to neural impulses |
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Definition
| System that sense position and movement of individual body parts |
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