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Form perception is the recognition of visual elements of objects, specifically those to do with shapes, patterns and previously identified important characteristics. An object is perceived by the retina as a two-dimensional image, [1] but the image can vary for the same object in terms of the context with which it is viewed, the apparent size of the object, the angle from which it is viewed ...
All of the above properties of perception – the constant figure, the background – in gestalt is in a relationship with each other and represents a new property. This is the gestalt form quality. The integrity of the perception and its order are achieved through the following principles of Gestalt psychology: [5] Closeness.
In psychology and cognitive science, perceptual vigilance (also called perceptual sensitization) refers to a form of selective perception where a person has a heightened state of awareness and attentiveness towards specific stimuli or information, generally to satisfy a motive.
"Illusory conjunctions in the perception of objects." Cognitive Psychology, 14, pp. 107–141. Anne Treisman and Janet Souther (1986). "Illusory words: The roles of attention and of top–down constraints in conjoining letters to form words." Journal of Experimental Psychology: Human Perception and Performance, 12 (1), pp. 3–17; Anne Treisman ...
The term illusion refers to a specific form of sensory distortion. Unlike a hallucination, which is a distortion in the absence of a stimulus, an illusion describes a misinterpretation of a true sensation. For example, hearing voices regardless of the environment would be a hallucination, whereas hearing voices in the sound of running water (or ...
The second advantage is that considerable economy of representation is achieved: a relatively small set of geons form a simple "alphabet" that can combine to form complex objects. For example, with only 24 geons, there are 306 billion possible combinations of 3 geons, allowing for all possible objects to be recognized.
The term originates with René Descartes in the form of the word apercevoir in his book Traité des passions. Leibniz introduced the concept of apperception into the more technical philosophical tradition, in his work Principes de la nature fondés en raison et de la grâce; although he used the word practically in the sense of the modern attention, by which an object is apprehended as "not ...
Perception depends on complex functions of the nervous system, but subjectively seems mostly effortless because this processing happens outside conscious awareness. [3] Since the rise of experimental psychology in the 19th century, psychology's understanding of perception has progressed by combining a variety of techniques. [4]