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The experience you have when some outside stimulus, such as light, sound, or physical pressure, reaches one of your sensory organs and is then relayed to your brain.
Refers to the experience you have when you organize sensations into some meaningful pattern. This also involves, learning, memory, beliefs and motivational factors.
perceiver selects based on past knowledge; the use of contextual information or knowledge of a pattern in order to organize parts of the pattern.
Attending to new stimuli that gets our attention: the organization of the parts of a pattern to recognize, or form an image of, the pattern they compose.
Perceptions should be viewed wholistically, they are often more than the sum of their parts.
Principles of Perceptual Organization
Figure and the ground, simplicity, similarity, continuity, closure.
Figure and Ground
Figure dominates the center of attention and the ground recedes into the background; figure-mire detail; ground-less detail.
Size, shape, brightness, and color constancies. The tendency to see an object as retaining in actual shape no matter what angle it is viewed from.
The importance of constancies
Perceptual constancies give the world a sense stability. Threshold, subliminal perception, and esp.
Classical Threshold Theory
This theory assumes that for any type of stimulus, such as light or sound, there is an absolute level below which a particular person can no longer perceive that stimulus.
The lowest level of stimulus energy needed in order for that stimulus to be perceived. Since this level varies from person to person and certain other conditions, an absolute threshold is often declined as the stimulus intensity a given, individual can detect 50% of the time.
The Concept of Just Noticeable Difference
The increase of decrease in the intensity of a stimulus that a person can manage to detect.
Wholistic way of seeing versus analytic. Below the level of conscious awareness but still able to perceive unconsciously.
Any perception that supposedly occurs outside normal sensory processes. Psychologists are not convinced any of these exist- however some research is being conducted that may not preclude the existence of some anomalous human experience that cannot be tested in the laboratory.
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