The effect of microgravity and space flight on the chemical senses |
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| Authors: | Olabi A A Lawless H T Hunter J B Levitsky D A Halpern B P |
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| Affiliation: | Authors Olabi and Lawless are with the Food Science Dept., Stocking Hall, Cornell University, Ithaca, NY14850. Author Hunter is with Biological and Environmental Engineering, 218 Riley-Robb, Cornell University, Ithaca, NY 14850. Author Levitsky is with the Division of Nutritional Sciences and Psychology Dept., 112 Savage Hall, Cornell University, Ithaca, NY 14850. Author Halpern is with the Neurobiology and Behavior Department, 236 Uris Hall, Cornell University, Ithaca, NY 14850. Direct inquiries to author Olabi (E-mail: ). |
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| Abstract: | ABSTRACT: The effect of space flight and microgravity on the chemical senses is reviewed. Skylab-4 and Soyuz 30–31 studies revealed changes in taste thresholds while no effect was found in a Canadian investigation (41-G) and conflicting results were obtained on another Soyuz mission. Two simulated microgravity studies found no effect on taste or smell sensitivity; while 5 other studies found an effect. Microgravity induces physiological changes including an upward shift of body fluids toward the head, which may lead to an attenuation of the olfactory component in the flavor of foods. Chemosensory changes may also relate to space sickness, Shuttle atmosphere, stress, radiation, and psychological factors. |
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| Keywords: | microgravity space flight taste smell chemosensory |
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