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Perception Vocab
| Question | Answer |
|---|---|
| Selective Attention | Focusing conscious awareness on a particular stimulus. |
| Inattentional Blindness | Failing to see visible objects when our attention is directed elsewere |
| Change Blindness | Failing to notice change in the environment; a from of inattentional blindness. |
| Perceptual set | a mental predisposition to perceive one thing and not another. |
| Gestalt | An organized whole Gestalt psychologists emphasized our tendency to integrate pieces of information into meaningful wholes. |
| Figure-ground | The organization of the visual field into objects (the figures) the stand out from their surroundings (the ground) |
| Grouping | The perceptual tendency to organize stimuli into coherent groups. |
| Depth Perception | the ability to see objects in three dimensions, although the images that strike the retina are two dimensional; allows us to judge distance. |
| Visual Cliff | A labratory device for testing depth perception in infants and young animals. |
| Binocular cues | A depth cue, such as retinal disparity, that depends on the use of both eyes. |
| Convergence | A cue to a nearby objects distance, enabled by the inward angle of the eyes. |
| Retinal Dispairity | A binocular cue for perceiving depth by comparing retinal images from the 2 eyes, the brain computes distance-- the greater the disparity between 2 images, the closer the object. |
| Monocular cue | A depth cue, such as interposition or linear perspective, available to either eye alone. |
| stroboscopic movement | An illusion of continuous movement (as in a motion picture) experienced when viewing a rapid series of slightly varying still imges. |
| Phi Phenomenon | An illusion of movement created when 2 or more adjacent lights blink on and off in succession. |
| Autokenetic effect | The illusory movement of a still spot of light in a dark room |
| Perceptual constancy | Perceiving objects as unchanging (having consistent color, brightness, and size) even as illumination and retinal images change. |
| Color Constancy | Perceiving familiar objects having consistent color, even if changing illumination alters the wavelengths reflected by the object |
| Perceptual adaptation | The ability to adjust changed sensory input, including an artificially displaced or even inverted visual field. |