Perception Ch.5bbd

Perception Ch.5bbd - Chapter Five Perception 5-1 Sensation...

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5 - 1 Chapter Five Perception
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5 - 2 Sensation - Messages from the sense that make up the raw information that affects many kinds of behavior and mental processes. Perception - The process through which people take raw sensations from the environment and interpret them, using knowledge, experience, and understanding of the world, so that the sensations become meaningful experiences
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5 - 3 Absolute Threshold Is there a point at which a stimulus can be present but undetectable, and at what point does it become detectable? It is defined as the minimum amount of stimulus energy that can be detected 50 percent of the time.
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5 - 4 The Absolute Threshold
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5 - 5 Galanter, Eugene. 1962, Contemporary Psychophysics in New Directions in Psychology , New York: Holt, Rinehart and Winston, p. 97
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Why Does the “Absolute” Threshold Vary? Sensitivity: Intensity of the signal. Capacity of sensory systems. Amount of background stimulation, or “noise.” Response criterion reflects one’s willingness to respond to a stimulus. Influenced by motivation and expectancies.
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This note was uploaded on 05/10/2010 for the course PSYCH 031 taught by Professor Jensen during the Spring '09 term at Pacific.

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Perception Ch.5bbd - Chapter Five Perception 5-1 Sensation...

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