Testing the sense of smell.
نویسندگان
چکیده
منابع مشابه
Sumner's "On testing the sense of smell" revisited.
The routine test of olfaction need not lead to an ambiguous outcome, a rather widely held notion. A multiple-choice test of odor identification that avoided the difficulty of retrieving odor names yielded excellent resolution among the categories normosmic, hyposmic, and anosmic. The outcome agreed almost perfectly with a more complicated test of threshold and offered much encouragement for the...
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The subject of my lecture is the sense of smell, one of the five senses through which we perceive the world. Through the sense of smell, humans and other mammals can perceive a vast number and variety of chemicals in the external world. It is estimated that humans can sense as many as 10,000 to 100,000 chemicals as having a distinct odor. All of these “odorants” are small, volatile molecules. H...
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A single particle of a certain fragrance is able to open the appetite, announce danger, arouse sexual desire, evoke the most remote sensations, and recall experiences and/or emotions of the distant past. But speaking of odors, it is interesting to say that each being has the genes that code the receptors of their smell and those that code for the odors emanating from their body. The genetic var...
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It is well established that Drosophila olfaction is under circadian control, yet the mechanisms underlying this temporal regulation have remained elusive. The kinase GPRK2 has now been identified as a critical link between the circadian clock and olfactory responses.
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An intact olfactory system affects all areas of life including the creation of new life, partner selection, daily hygiene, food intake, and the perception of danger from gas and smoke. The olfactory system is most effective from adolescence to middle age. With advancing age the regeneration of olfactory receptor cells decreases, often resulting in an increasing loss of smell. Functional anosmia...
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ژورنال
عنوان ژورنال: BMJ
سال: 1987
ISSN: 0959-8138,1468-5833
DOI: 10.1136/bmj.294.6575.793