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| stimulus level at which a sensory signal is detected half of the time |
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| synthesis of the perception by both eyes in the brain |
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| region of the retina where the optic nerve leaves the back of the eye. |
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| combining bits of sensory input to create a unified perception |
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| photoreceptors that are specialized for brightness and color |
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| degree that eyes turn inward to fixate on an object |
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| brain switches to using more rods than cones |
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| JND (just noticeable difference) smallest degree of difference between stimuli that can be noticed |
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| actual object in the environment |
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| Focus on experience, learning, and context and its effect on perception |
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| analysis of stimuli "bottom up" assembling bits of stimuli |
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| actual stimulus may be minimal but can create a lot of psychological stress |
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| the sum is greater than its parts. The vision of the whole is more important than its components |
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| knowledge not required to perceive the world |
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| you know the object is the same even though the amount of light on it may change |
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| As objects become more distant they appear smaller |
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| that one where the lines have arrows point different directions but the lines are the same size |
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| we have innate abilities to perceive the world |
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| transmits visual information from the retina to the brain |
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| overlapping of objects to create depth |
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| ability to retain a perception of an object despite varying conditioins |
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| processes that put sensory information together to give the perception of a coherent scene |
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| your presupposed perceptions affect your actual perception of an object. for example, the rat-man illusion |
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| series of changes in still images gives the illusion of movement |
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| optical image on the retina |
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| physiological response to physical stimuli |
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| opens and closes to let in light |
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| smaller size appears to be farther away |
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| light-sensitive tissue lining the inner surface of the eye. The optics of the eye create an image of the visual world on the retina, which serves much the same function as the film in a camera |
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| displacement between horizontal positions of corresponding images in the two eyes |
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| not perception. the process by which stimulation of a sensory receptor gives rise to neutral impulses that result in an experience |
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| a phenomenon in which receptor cells lose their power to respond after a period of unchanged stimulation; allows a more rapid reaction to new sources of information. |
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| a systematic approach to the problem of response bias that allows an experimenter to identify and separate the roles of sensory stimuli and the individual's criterion level in producing the final response |
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| why people select certain sensory inputs for further processing |
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| minimum stimulus to be detected |
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| knowledge used to interpret sensory input |
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| relationship between the magnitude of a stimulus and the perception of its intensity |
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