| A | B |
|---|
| Selective Attention | The focusing of conscious awareness on a particular stimulus, as in the cocktail party effect |
| Visual capture | The tendency for vision to dominate the other senses |
| Gestalt | An organized whole. Gestalt psychologists emphasize our tendency to integrate pieces of information into meaningful wholes. |
| Figure-ground | The organization of visual field into objects (the figures) that 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 laboratory device for testing depth perception in infants and young animals |
| Binocular cues | Depth cues, such as retinal disparity and convergence, that depend on the use of two eyes |
| Monocular cues | Distance cues, such as linear perspective and overlap, available to either eye alone |
| Retinal disparity | A binocular cue for perceiving depth; the greater the disparity (difference) between the two images the retina receives of an object, the closer the object is to the viewer |
| Convergence | A Binocular cue for perceiving depth; the extent to which the eyes converge inward when looking at an object |
| Phi phenomenon | An illusion of movement created when two or more adjacent lights blink on and off in succession |
| Perceptual Constancy | Perceiving objects as unchanging (having consistent lightness, color, shape and size) even as illumination and the retinal images change. |
| Perceptual adaptation | In vision, the ability to adjust to an artificially displaces or even inverted visual fields |
| Extrasensory perception (ESP) | The controversial claim that perception can occur apart from sensory input. Said to include telepathy, clairvoyance, and precognition |
| Parapsychology | The study of paranormal phenomena, including ESP and psychogenesis |
