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| the stimulation of our sense organs by the outer world, detect different features and surroundings |
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| the act of organizing and interpreting sensory experience |
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| the process by which our sensitivity diminishes when an object constantly stimulates our senses |
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| the study of how people psychologically perceive physical stimuli, such as light, soundwaves, touch |
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| the lowest intensity level of a stimulus a person can detect HALF the time |
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takes into account both stimuli intensity, and the decision making process people use in detecting a stimulus
-assuming a persons abs. threshold fluctuates, sometimes more sensitive, sometimes less |
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| the smallest amount of change between two stimuli that a person can detect HALF the time (just noticable differences JND) |
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| finding that the size of a JND is a constant fraction of the intensity of the stimulus |
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| the effect of frame of mind on perception (ex. mood, health, knowledge of how the world works) |
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| clear hard covering that protects the lens |
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| the process by which muscles control the shape of the lens to adjust viewing objects at different distances |
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| thin layer of nerve tissue that lines the back of the eye |
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| play a key role in night vision (most responsive to light and dark contrast) |
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| responsible for color vision-most functional in conditions of bright light |
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| spot in the back of the retina that contains the highest concentration of cones in the retina, we see images with the great clarity when they are focused on the fovea |
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| the ability to see clearly is dependent on the cones |
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| transmits signals from the eye to the brain |
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| the point at which strands of the optic nerve from half of each eye cross over the opposite side of hte brain |
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| the first stop in the brain for most of the fibers of the optic nerve, where real visual processing occurs |
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| the ability to see things in three dimensions and to discriminate what is near from what is far |
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| rely on input from both eyes |
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| the way that our eyes move inward as an object moves closer to you |
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| we derive a great deal of information about depth from the numerous monocular depth cues that do not require 2 eyes to be effective |
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