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The Feasibility of Gelatin-Based Retronasal Stimuli to Assess Olfactory Perception

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  • Daniel Shepherd
  • Michael J. Hautus

Abstract

Links between some psychological disorders and olfactory deficits are well documented, and screening tests have been developed to exploit these associations. Odors can take one of two routes to the olfactory receptors in the nasal epithelium, the orthonasal or retronasal route. This article discusses the potential use of the retronasal route to assess olfaction using gelatin-based stimuli delivered orally. Using a relatively new psychophysical method, the Single-Interval Adjustment Matrix task, we estimated vanillin thresholds for five healthy participants sampling small vanillin flavored gels. Our data demonstrate the feasibility of using solid-state gustatory stimuli to assess retronasal perception.

Suggested Citation

  • Daniel Shepherd & Michael J. Hautus, 2015. "The Feasibility of Gelatin-Based Retronasal Stimuli to Assess Olfactory Perception," SAGE Open, , vol. 5(4), pages 21582440156, October.
    • Handle: RePEc:sae:sagope:v:5:y:2015:i:4:p:2158244015610173
    DOI: 10.1177/2158244015610173
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