An analysis of an experiment that investigated chemoreception and mechanoreception in humans.
Written in 2008; 2,122 words; 11 sources; APA; $ 66.95
Paper Summary:
The paper details an experiment that examined the three senses of taste, touch and hearing by determining the thresholds and the localization of their specific receptors. The paper describes the materials and methods used and includes graphs and charts to display results. A discussion on the findings of this experiment is also provided.
Outline:
Introduction
Materials and Methods
Results
Discussion
From the Paper:
"In this experiment, three senses were analyzed by determining the thresholds and the localization of their specific receptors. The chemical sense of taste can be divided into five distinct qualities: salty, sweet, sour, bitter and umami (Goldstein, 2007), of which the first four were investigated in this experiment. The surface of the tongue contains four different papillae: circumvallate, fungiform, foliate and filiform. The first three house the taste buds. Each taste bud contains receptor sites for different types of chemical, depending on its papillae type (Zungia, et al, 1993). When a chemical contacts the appopriate site, transduction occurs down its nerve fiber. Fibers from the same receptor types synapse with the nucleus of the solitary tract, which eventually leads into several areas of the frontal lobe. These are the insula and the frontal operculum cortex, which receive the taste signals and the orbital frontal cortex, which combines these signals with input from the olfactory system (Goldstein, 2007)."
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