ap_psych_taste_and_smell_project.ppt - TASTE AND SMELL Mary Lynn Kyle Cameron Jack Andrew Izzy OBJECTIVES Discuss sensory processes including specific

ap_psych_taste_and_smell_project.ppt - TASTE AND SMELL Mary...

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TASTE AND SMELL Mary Lynn, Kyle, Cameron, Jack, Andrew, Izzy
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OBJECTIVES Discuss sensory processes including specific nature of energy transduction, relevant anatomical structures, and specialized pathways in the brain for taste and smell Explain common sensory disorders in relation to smell and taste Identify the four basic tastes Discuss the differences among the taste, smell, and flavor
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ESSENTIAL QUESTIONS How do smell and taste work? (Background info) What is the nature of energy transduction? What are some important anatomical structures involved in smell and taste? What causes loss of smell and taste? What are common smell and taste disorders? What are the four basic tastes? What are the differences between smell, taste, and flavor? What are the similarities between smell and taste?
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HOW TASTING WORKS 1. Taste sensory cells (found in taste buds): Odor and food molecules activate membrane receptors Taste signals go to the limbic system and cerebral cortex Patterns of nerve activity encode taste sensations Sensory processing allows us to interpret flavors 2. Genes determine the kinds of taste receptors we have, and experiences shape our perceptions 3. Taste disorders may be genetic, or may result from illness or injury 4. Taste preference: infants have heightened taste sensitivity while elders have decreased ability to taste 5. Sensory interaction : taste receptors easily damaged by alcohol, smoke, acids, or hot foods but gustatory receptors are frequently replaced 6. Supertasters are those ppl with taste buds for bitter flavors, experiences sense of taste with far greater intensity. Nontasters : person unable to taste the chemical phenylthiocarbamide 7. Sensations of flavor and aroma often work together, especially during eating
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HOW SMELL WORKS Smell: chemical sense detected by sensory cells called chemoreceptors.
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