Perception of phasic pain is modulated by smell and taste
| Autor: | Maria Paola Cecchini, Miguel Di Chiappari, Alice Zanini, Mirta Fiorio, Marianna Riello, Michele Tinazzi |
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| Rok vydání: | 2019 |
| Předmět: |
Adult
Male Pain Threshold Taste medicine.medical_specialty Adolescent media_common.quotation_subject Pain tolerance Pain Sensory system Audiology phasic pain pain unpleasantness 03 medical and health sciences Young Adult 0302 clinical medicine stomatognathic system Perception Threshold of pain Psychophysics Medicine Humans 030212 general & internal medicine Valence (psychology) pain intensity smell taste media_common business.industry food and beverages Taste Perception Pain Perception Olfactory Perception Electric Stimulation Healthy Volunteers Smell Anesthesiology and Pain Medicine Touch Sensory Thresholds Neuropathic pain Odorants Female business psychological phenomena and processes 030217 neurology & neurosurgery |
| Zdroj: | European journal of pain (London, England)REFERENCES. 23(10) |
| ISSN: | 1532-2149 |
| Popis: | Background Pain perception is a multimodal experience composed of sensory, emotional and cognitive dimensions. Accumulating evidence suggests that the chemical senses can influence pain perception, but their relation with phasic pain is still unknown. The aim of this study was to investigate the influence of smell and taste having different valence on phasic pain. Methods Twenty-eight healthy volunteers received sweet, bitter and neutral odours or gustatory substances while receiving painful stimuli consisting of electrical shocks. Tactile threshold, pain threshold and pain tolerance were collected using the psychophysical method of limits at baseline and in association with smell and taste. Perception of pain intensity and unpleasantness was measured with a numerical rating scale. Results Sweet smell induced lower ratings of pain intensity than bitter smell when stimuli were delivered at pain threshold. Sweet smell also induced lower ratings of pain unpleasantness than neutral smell when stimuli were delivered at pain tolerance. Sweet taste induced lower ratings of pain unpleasantness than bitter taste when stimuli were delivered at pain threshold. Conversely, pain threshold and pain tolerance per se were not affected by smell and taste. Conclusions These findings highlight an effect of sweet substances in reducing the subjective perception of pain intensity and unpleasantness associated to phasic pain. Significance By demonstrating the link between smell, taste and phasic pain this study may have a translational impact in clinical conditions characterized by so-called shock-like pain, such as neuropathic pain. |
| Databáze: | OpenAIRE |
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