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PSYCH 2000-Sensation Perception (Modules 17-19)

PSYCH 2000-Sensation Perception (Modules 17-19) - Module 17...

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Module 17: Introduction to Sensation and Perception PSYC 2000 Sensation and Perception
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Sensation and Perception Sensation— how our sensory receptors and nervous system receives and represents stimulus energies from our environment. Transduction : conversion of one sort of energy to another. Perception— how we organize and interpret sensory information.
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Sensation and Perception Two types of processing: Bottom-up processing —beginning with basic information from our sense receptors Top-down processing —guided by a higher-level framework of experience and expectations ( perceptual set ) T H E C H T
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Thresholds Absolute threshold —minimum stimulation to detect a stimulus 50% of the time Subliminal —stimulation below absolute threshold Can we be affected by subliminal stimulation? Yes. Sometimes we consciously detect it. Priming: effects of a stimulus that is not consciously recognized—a subtle,
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Difference threshold (or just noticeable
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