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Adaptation of olfactory threshold at high altitude
R Ruffini1, C Di Giulio, V Verratti
1Department of Neuroscience & Imaging, University of Chieti-Pescara, Chieti, Italy.
Advances in Experimental Medicine and Biology
|October 15, 2014
Summary
High altitude significantly impairs the sense of smell, increasing the olfactory threshold. This study suggests a physiological adaptation of olfaction to altitude-hypoxia.
Area of Science:
- Physiology
- Environmental Medicine
- Sensory Science
Background:
- High altitude environments present unique physiological challenges.
- Understanding sensory system adaptations to extreme conditions is crucial.
Purpose of the Study:
- To investigate the impact of high altitude hypoxia on olfactory threshold.
- To assess changes in the sense of smell during a scientific expedition.
Main Methods:
- Utilized the n-butanol test to measure olfactory threshold.
- Conducted assessments before, during, and after an expedition to Mera Peak (5,800 m).
Main Results:
- A significant increase in olfactory threshold was observed at high altitude.
- Olfactory function was demonstrably altered by the hypoxic environment.
Conclusions:
- High altitude hypoxia causes a physiological adaptation in olfaction.
- The sense of smell is sensitive to extreme environmental changes like altitude.
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