![]() *Interposition - monocular visual cue in which two objects are in the same line of vision and one partially conceals the other, indicating that the first object concealed is further away. Parapsychology - the study of paranormal phenomena, including ESP and psychokinesis. Said to include telepathy, clairvoyance, and precognition. Perceptual Set - a mental predisposition to perceive one thing and not another.Įxtrasensory Perception - the controversial claim that perception can occur apart from sensory input. ![]() ![]() Perceptual Adaptation - in vision, the ability to adjust to an artificially displaced or even inverted visual field. Perceptual Constancy - perceiving objects as unchanging (having consistent lightness, color, shape, and size) even as illumination and retinal images change. *Phi Phenomenon - an illusion of movement created when two or more adjacent lights blink on and off in quick succession. Relative Brightness - a monocular cue, objects up close appear brighter than objects farther away. Linear Perspective - Where converging lines meet at a vanishing point creates a feeling of vast space. Relative Motion - The perception of an observer that, as the observer moves forward, the objects that appear to him/her to move backwards faster are closer than apparently slower-moving objects a monocular cue. Relative Height - we perceive objects higher in our field of vision as farther away. Texture Gradient - a graduated change in the texture, or grain, of the visual field, whereby objects with finer, less detailed textures are perceived as more distant. Relative Size - two objects are similar in size, we percieve the one that casts the smaller retinal image as farther away. Retinal Disparity - 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 close the object.Ĭonvergence - a binocular cue for perceiving depth the extent to which the eyes converge inward when looking at an object. Monocular Cues - depth cues, such as interposition and linear perspective, available to either eye alone. Visual Cliff - a laboratory device for testing depth perception in infants and young animals.īinocular Cues - depth cues, such as retinal disparity and convergence, that depend on the use of two eyes. *Similarity - a Getalt principle of organization holding that (other things being equal) parts of a stimulus field that are similar to each other tend to be perceived as belonging together as a unit.Ĭontinuity - Gestalt psychology principle which states that the observer tends to see a line or shape as continuing in a particular direction rather than making a turn.Ĭlosure - a Gestalt principle of organization holding that there is an innate tendency to perceive incomplete objects as complete and to close or fill gaps and to perceive asymmetric stimuli as symmetric.Ĭonnectedness - a Gestalt grouping principle elements that are connected to each other group together.ĭepth Perception - the ability to see objects in three dimensions although the images that strike the retina are two-dimensional allows us to judge distance. *Proximity - a Gestalt principle of organization holding that (other things being equal) objects or events that are near to one another (in space or time) are perceived as belonging together as a unit. *Grouping - the perceptual tendency to organize stimuli into coherent groups. *Gestalt - an organized whole - psychologists emphasized our tendency to integrate pieces of info into meaningful wholes.įigure ground - the organization of the visual field into objects (the figures) that stand out from their surroundings (the ground). Visual Capture - the tendency for vision to dominate the other senses. *Selective Attention - the focusing of conscious awareness on a particular stimulus, as in the cocktail party effect.
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