Myron 10 - Sensation and Perception Definitions Sensation receiving and processing stimuli Transduction converting environmental energies into

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Sensation and Perception
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Definitions Sensation: receiving and processing stimuli Transduction: converting environmental energies into neural impulses Perception: interpreting sensations
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Bottom Up Perception Begins with sense receptors and works up to the brain Top Down Perception Using your prior knowledge and experiences
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Thresholds Absolute thresholds Just noticeable difference (Weber’s law) Signal Detection Subliminal - presented below the threshold of conscious awareness
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Taste Taste buds 2000-5000 on tongue Sweet, salty, sour, bitter, umami Controversy about how they are arranged over the tongue
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Food Preferences (Perception of Taste) Culture and Development what is available religion Genetics and Hormones Pregnancy Supertasters Nontasters
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Olfactory Taste and smell are closely linked! Olfactory epithelium – found in nasal cavity, contains odor receptors Lock-and-key-theory Transduced impulses sent across olfactory nerve to olfactory bulb
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This note was uploaded on 03/25/2011 for the course PSYCH 1101 taught by Professor Staff during the Spring '11 term at Georgia State University, Atlanta.

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Myron 10 - Sensation and Perception Definitions Sensation receiving and processing stimuli Transduction converting environmental energies into

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