7.3- The Chemical Senses
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13 terms
Terms | Definitions |
|---|---|
 Across-fiber pattern principle | notion that each receptor responds to a wide range of stimuli and contributes to the perception of every stimulus in its system |
| Adaptation | decreased response to a stimulus as a result of recent exposure to it |
| Cross-adaptation | reduced response to one stimulus because of recent exposure to some other stimulus |
| Labeled-line principle | concept that each receptor responds to a limited range of stimuli and has a direct line to the brain |
| Nucleus of the tractus solitarius (NTS) | area in the medulla that receives input from taste receptors |
| Olfaction | sense of smell |
| Olfactory cells | neurons responsible for the sense of smell, located on the olfactory epithelium in the rear of the nasal air passages |
| Papillae | structure on the surface of the tongue containing taste buds |
| Pheromones | chemical released by one animal that affects the behavior of the other members of the same species |
| Supertasters | people with heightened sensitivity to taste |
| Synesthesia | experience of one sense in response to stimulation of another sense |
| Taste bud | structures on the tongue that contains taste receptors |
| Vomeronasal organ (VNO) | set of receptors located near, but separate from, the olfactory receptors |
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