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Visual perception is the brain's ability to receive, interpret, and act upon visual stimuli. Perception is based on the following seven elements: 1. Visual discrimination. The ability to distinguish one shape from another. 2. Visual memory
- Mental Imagery
The classical problem concerning the extent of the analogy...
- Mental Imagery
- What Is Visual Perception?
- Gregory (1970) and Top-Down Processing Theory
- Critical Evaluation of Gregory’s Theory
- Gibson (1966) and Bottom-Up Processing
- Evaluation of Gibson’s (1966) Direct Theory of Perception
- References
To receive information from the environment, we are equipped with sense organs, e.g., the eye, ear, and nose. Each sense organ is part of a sensory system that receives sensory inputs and transmits sensory information to the brain. A particular problem for psychologists is explaining how the physical energy received by sense organs forms the basis ...
Psychologist Richard Gregory (1970) argued that perception is a constructive process that relies on top-down processing. Stimulus information from our environment is frequently ambiguous, so to interpret it, we require higher cognitive information either from past experiences or stored knowledge in order to make inferences about what we perceive. H...
1. The Nature of Perceptual Hypotheses
If perceptions make use of hypothesis testing, the question can be asked, “what kind of hypotheses are they?” Scientists modify a hypothesis according to the support they find for it, so are we, as perceivers, also able to modify our hypotheses? In some cases, it would seem the answer is yes. For example, look at the figure below: This probably looks like a random arrangement of black shapes. In fact, there is a hidden face in there; can you see it? The face is looking straight ahead and is i...
2. Perceptual Development
A perplexing question for the constructivists who propose perception is essentially top-down in nature is “how can the neonate ever perceive?” If we all have to construct our own worlds based on past experiences, why are our perceptions so similar, even across cultures? Relying on individual constructs for making sense of the world makes perception a very individual and chancy process. The constructivist approach stresses the role of knowledge in perception and therefore is against the nativi...
3. Sensory Evidence
Perhaps the major criticism of the constructivists is that they have underestimated the richness of sensory evidence available to perceivers in the real world (as opposed to the laboratory, where much of the constructivists” evidence has come from). Constructivists like Gregory frequently use the example of size constancy to support their explanations. That is, we correctly perceive the size of an object even though the retinal image of an object shrinks as the object recedes. They propose th...
Gibson’s bottom-up theory suggests that perception involves innate mechanisms forged by evolution and that no learning is required. This suggests that perception is necessary for survival – without perception, we would live in a very dangerous environment. Our ancestors would have needed perception to escape from harmful predators, suggesting perce...
A large number of applications can be applied in terms of his theory, e.g., training pilots, runway markings, and road markings. It’s an excellent explanation for perception when viewing conditions are clear. Gibson’s theory also highlights the richness of information in an optic array and provides an account of perception in animals, babies, and h...
DeCasper, A. J., & Fifer, W. P. (1980). Of human bonding: Newborns prefer their mothers” voices. Science, 208(4448), 1174-1176. Gibson, J. J. (1966).The Senses Considered as Perceptual Systems.Boston: Houghton Mifflin. Gibson, J. J. (1972). A Theory of Direct Visual Perception. In J. Royce, W. Rozenboom (Eds.). The Psychology of Knowing. New York: ...
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Visual perception is the ability to interpret the surrounding environment through photopic vision (daytime vision), color vision, scotopic vision (night vision), and mesopic vision (twilight vision), using light in the visible spectrum reflected by objects in the environment.
Nov 21, 2023 · What is visual perception? Visual perception is the ability to see and interpret one's visual environment. It is the brain's ability to make sense of what the eyes see.
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- Holly DeLuca
In psychology, visual perception refers to the brain's ability to interpret and make sense of visual information received from our eyes. It involves recognizing shapes, colors, depth and interpreting spatial relationships between objects. Visual perception is crucial for understanding our surroundings and interacting with the environment ...
Learn how the brain processes visual information from the eye to the cortex, and how top-down mechanisms like attention shape our perception. Explore the hierarchical structure of the visual cortex, the What and Where pathways, and optical illusions.
Aug 24, 2021 · Visual perception combines light and optics to paint moving pictures in your mind. The process starts with visualization — how the brain transforms light impulses into eyesight. But visual perception is a much bigger concept because it helps you understand what you’re seeing.
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