Polysemy and metaphor in perception verbs: a cross-linguistic study
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PhD-Thesis-99
5.1.1.5. Taste
The stimulus for taste consists of substances that penetrate into the taste buds in the tongue and mouth. This is reflected in the property > in Section 5.2.2. In order to taste the mouth has to be in contact with the OP, but tasting can be considered a voluntary act, because it is the PR’s decision to actually put the OP that contains these substances into the mouth. These two characteristics are represented by the properties > and > in Section 5.2.2. These substances must be soluble in saliva in order to be tasted. The taste buds are the responsible receptor cells for the reception of chemical substances. Some of them are situated in the papillae, the little bumps in the tongue, in the roof of the mouth, inside the cheeks, and in the throat. The most sensitive part, however, is the tip of the tongue; this can identify tastes in only a couple of seconds. The property > in Section 5.2.2 reflects this fact. The number of taste buds varies across individuals (Miller and Reedy 1990) and they are in a constant process of degeneration and replacement by new ones (Beidler and Smallman 1965). Each bud contains an average of fifty individual taste receptor cells. Each of these cells has a threadlike structure called a microvillus at their end. When these microvilli come into contact with taste solutions, an electrical potential is triggered in the receptor cell. Back inside the papilla, the taste receptor cells make contact with nerve fibres innervating the tongue, as they themselves do not have the axons to send messages to the brain. Taste buds in the tongue and mouth are innervated by no less than three distinct cranial nerves, sometimes even more than one nerve innervates the same taste bud (Keverne 1982); as a consequence, taste information arrives at the brain over several different communication lines. In the brain, there are two sections involved: on the one hand, the insular cortex – located between the temporal and parietal lobes – whose activity triggers the conscious experience of tastes; and on the other, part of the limbic system, which registers some behaviourally relevant information about taste. As seen in the case of smell, this is a possible explanation for the differences in the aesthetic judgements of the PRs in reference to the classification of tastes, both physically and metaphorically. This is represented by the property > in Section 5.2.2. B. Iraide Ibarretxe-Antuñano Polysemy and metaphor in perception verbs 143 Download 1.39 Mb. Do'stlaringiz bilan baham: |
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