Gustatory stimulating technique for glossopharyngeal neurophysiological recordings
| Autor: | M. Scott Herness |
|---|---|
| Rok vydání: | 1988 |
| Předmět: |
Taste
Chemistry General Neuroscience Action Potentials Anatomy Sodium Chloride Stimulus (physiology) Neurophysiology Taste Buds Ammonium Chloride Chemoreceptor Cells Rats Electrophysiology medicine.anatomical_structure Tongue Physical Stimulation Glossopharyngeal nerve Peripheral nervous system medicine Animals Lingual papilla Mechanoreceptors Neuroscience Glossopharyngeal Nerve |
| Zdroj: | Journal of Neuroscience Methods. 24:237-242 |
| ISSN: | 0165-0270 |
| DOI: | 10.1016/0165-0270(88)90168-9 |
| Popis: | A new stimulating technique for studying the gustatory sensitivity of the glossopharyngeal nerve is presented. Among its other functions the glossopharyngeal nerve relays multisensory information from the posterior tongue region. Study of the gustatory function of this nerve is therefore complicated by concomitant tactile and thermal components. Additionally taste buds innervated by the glossopharyngeal nerve are located in trenches within the foliate and circumvallate papillae which results in slow delivery and removal of tastant solutions. By delivering the stimulus or adapting solution through an infusion pump connected to a double-barrelled pipette placed into the trench of the circumvallate papilla, quick delivery and removal of the stimulus is possible. Moreover the continuous flow of solution, switched from adapting solution to stimulus and back, allows tactile components to completely adapt. Due to both the proximity of the stimulus to the receptors and the continuous flow of the solution this technique produces gustatory responses with large phasic components, as is commonly observed in other gustatory nerves. The temporal characteristics of the gustatory portion of the glossopharyngeal nerve can therefore now be more readily studied. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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