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| A process by which our sensory receptors and nervous system recieve and represent stimulus energy. |
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| a process of organizing and interpreting sensory information, enabling us to recognize meaningful objects and events. |
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| predicts how and when we detect the presence of a faint stimulus (signal) and background stimulation(noise) |
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| To perceive as different, two stimuli must differ by a constant minimum percentage. |
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| Transparent tissue where light enters the eye. |
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| Muscle that expands and contracts to change the size of the opening (pupil) for light. |
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| Focuses the light rays on the retina. |
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Definition
| Contains sensory receptors that process visual information and sends it to the brain. |
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| The process by which the eyes lens changes shape to help focus near or far objects on the retina. |
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| Carries neural impulses from the eye to the brain. |
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| Transparent structure behind the pupil that changes shape focus images on the retina. |
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Definition
| Point where the optic nerve leaves the eye because there are no receptor cells located there. |
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| Central point in the retina around which the eyes cones cluster. |
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Definition
| Recieve messages from photoreceptors and transmit them to ganglion cells, which converge to form the optic nerve. |
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Definition
| Near center of Retina, fine detail and color vision, and daylight or well-lit conditions. |
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| Peripheral retina, detect black, white and gray and twilight or low light. |
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Definition
| The distance from the peak of one wave to the peak of the next. |
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| Amount of energy in a wave determinded by the amplitude. |
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Definition
| Spectrum: red, green, and blue. |
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Definition
| Ability to see objects in three dimensions, allows us to judge distance. |
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