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| an ESP ability where one is supposedly able to levitate and move objects. |
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| reveal the way we normally organize and interpret our sensations. |
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| for the higher pitches, cells may alternate their firing ro match the sound's frequency. |
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| Gestalt principle that we tend to perceive uniform or attached items as a single unit. |
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| as we move, objects at differetn distances appear to move a different rates. |
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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 inward the strain, the closer the object. |
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| in vision, the ability to adjust artificially displaced or even inverted vision/ |
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| the amount of light an object reflects relative to its surroundings. |
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| an object partially covered by another is perceived as farther away. |
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| a gradual change from a coarse distinct texture to a fine, indistinct textrure singals increasing distance; objects far away appear smaller and more densely packed. |
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| perceiving objects as unchanged (having consistent lightness, color, shape, and size) even as illumination and retinal images change. |
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| a mental predisposition to perceive one thing and not another. |
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| Gestalt principle that we group items that are close to each other. |
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| a laboratory device for testing depth perception in infants and young animals. |
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| the perceptual tendency to organize stimuli into coherant groups. |
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| depth cues, such as interposition and linear perspective, available to either yet alone. |
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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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| An ESP ability to "see into the future." |
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| a branch of psychology that explores how peple and machines interact and how machines and physical environments can be made safe and easy to use. |
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| failing to see visible objects when our attention is directed elsewhere. |
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| out tendency to perceive complete forms involving sensory analysis. |
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| a binocular cue for perceiving depth; by comparing images from the two eyeballs, the brain computes distance--the graeter the difference between the two images, the closer the object. |
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| Gestalt principle that we organize stimuli into smooth, continuous patterns. |
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| the organization of the visual field into objects (figures) that stand out from their surroundings (ground). |
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| form of ESP in which people claim to be capable of reading others' minds. |
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| extrasensory perception (ESP) |
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| the comtroversial claim the perception can occur apart from sensory input |
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| an organized whole; emphasizes our tendency to integrate pieces of information into meaningful wholes. |
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| parallel lines appear to converge in the distance. |
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| when two objects are presumed to be the same size, the one that casts a smaller retinal image is perceived as farther away. |
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| dimmer, or shaded objects seem farther away. |
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| objects that appear hazy are seen as farther away. |
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| Gestalt princple that we fil in gaps to create a complete object. |
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| the focusing of conscious awareness on a particular stimulus, such as the coktail party effect. |
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| visual form of inattentional blindness. |
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| the tendency for vision to dominate the other senses. |
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| experiences of vision during infancy that are crucial for perceptual development, as shown by studies of sensory deprivation. |
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| form of ESP in which a person "senses" events taking place in the present outside of one's basic senses. |
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| Gestalt principle that we group items that look alike. |
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| an emotional tie with another person; show in young children by seeking closeness to the caregiver and showing distress on separation. |
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| decreasing repsonsiveness with repeated stimulation; as infants gain familiarity with repeated exposure to a visual stimulus, their interest wanes and they look away sooner. |
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| objects lowe in the visual field are seen as nearer. |
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| the study of paranormal phenomenon, including ESP and psychokinesis. |
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| the perceptual disorder in which a person has lost the ability to recognize familiar faces. |
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| an illsion of movement created when two or more adjacent lights blink on and off in quick succession. |
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| occurs when we hear a speaker saying one syllable while blending another. |
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