![]() They can sample it again, but it is a different instance of perception. A person can never again experience the same sight, sound, taste, scent, or feel of an item. Perception itself is ephemeral and individual. This approach also speaks to the problem of defining where perception and cognition are divided - specifically that perception is the experience of proximal stimulation and cognition is the formation of a perceptual object. In more practical terms, it also enables us to consider the experience of communication media such as radio or television, in which the viewer experiences proximal stimulation and conceives a perceptual object without the actual presence of a distal object, because data is forged in the informational medium. While seemingly tedious, Gibson's approach draws a clear distinction between reality and our perception of reality.Ĭonsider the hackneyed question of "if a tree falls in a remote forest does it make a sound?" Gibson's model clearly distinguishes the tree, the emission of sound waves, the reception of sound waves, and a perceptual object, enabling us to better consider what we mean by "a sound" - or for that matter "a tree." Perceptual Object - An internal conception, based on the proximal stimulation, of the distal object.Proximal Stimulation - Refers to activation that occurs at the specific location where the information is received: the eardrums, the retina, the skin, etc.Informational Medium - The means by which data is conveyed from the object to the perceiver: light rays, sound waves, chemical particles, heat, etc.Distal Objects - These are things that exist in the environment and emit signals that are available to be perceived.The author relates James Gibson's work in the area of perception: Gibson introduced a number of key concepts: ![]() The author presents a few optical "illusions" as a means of suggesting that perception is based on the interpretation of stimuli - what at first seems like an amorphous blot becomes recognizable as a familiar shape representing an object we have seen. Perception is a set of processes by which we recognize and make sense of sensations we receive from environmental stimuli, which is a process that encompasses many psychological phenomena.
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