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| The focusing of conscious awareness on a particular stimulus, as in the cocktail party effect. |
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| Failing to see visible objects when our attention is directed elsewhere. |
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| The tendency for vision to dominate the other senses. |
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| An organized whole. These psychologists emphasize our tendency to integrate pieces of information into meaningful wholes. |
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| The organization of the visual field into objects (the figures) that stand out from their surroundings (the ground). |
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| The perceptual tendency to organize stimuli into coherent groups. |
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| The ability to see objects in three dimensions although the images that strike the retina are two-dimensional; allows us to judge distance. |
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| A laboratory device for testing depth perception in infants and young animals. |
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| Depth cues, such as retinal disparity and convergence, that depend on the use of two eyes. |
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| A binocular cue for perceiving depth: By comparing images from the two eyeballs, the brain computes distance- the greater the disparity (difference) between the two images, the clearer the object. |
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| A binocular cue for perceiving depth; the extent to which the eyes converge inward when looking at an object. The greater the inward strain, the closer the object. |
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| Depth cues, such as interposition and linear perspective, available to either eye alone. |
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| An illusion of movement created when two or more adjacent lights blink on and off in quick succession. |
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| Perceiving objects as unchanging (having consistent lightness, color, shape, and size) even as illumination and retinal images change. |
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| In vision, the ability to adjust to an artificially displaced or even inverted visual field. |
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| A mental predisposition to perceive one thing and not another |
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| A branch of psychology that explores how people and machines interact and how machines and physical environments can be made safe and easy to use. |
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| Extrasensory Perception (ESP) |
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| The controversial claim that perception can occur apart from sensory input. Said to include telepathy, clairvoyance, and precognition. |
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| The study of paranormal phenomena, including ESP and psychokinesis |
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