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Related Concept Videos

Olfaction01:25

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The sense of smell is achieved through the activities of the olfactory system. It starts when an airborne odorant enters the nasal cavity and reaches olfactory epithelium (OE). The OE is protected by a thin layer of mucus, which also serves the purpose of dissolving more complex compounds into simpler chemical odorants. The size of the OE and the density of sensory neurons varies among species; in humans, the OE is only about 9-10 cm2.
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A Free-breathing fMRI Method to Study Human Olfactory Function
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Published on: July 30, 2017

Perceptual and sensorimotor differences between "good" and "poor" olfactory mental imagers.

Catherine Rouby1, Fanny Bourgeat, Fanny Rinck

  • 1Université de Lyon, Université Claude Bernard Lyon1, CNRS UMR 5020 Neurosciences Sensorielles, Comportement, Cognition 69366 Lyon, France. rouby@olfac.univ-lyon1.fr

Annals of the New York Academy of Sciences
|August 19, 2009
PubMed
Summary
This summary is machine-generated.

Good olfactory imagers perceive odors as more familiar and edible than poor imagers. This difference is linked to longer sniffing durations, suggesting better odor processing in those with strong olfactory imagery.

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Area of Science:

  • Neuroscience
  • Sensory Perception
  • Olfactory Psychology

Background:

  • Individual differences in odor perception and olfactory imagery are significant.
  • The relationship between the ability to imagine smells and the perception of actual odors requires further investigation.

Purpose of the Study:

  • To investigate if behavioral differences in actual odor perception underlie inter-individual variability in olfactory imagery.
  • To explore the link between olfactory imagery ability and the perception of odor characteristics like familiarity and edibility.

Main Methods:

  • Two studies were conducted involving human participants judging odorants.
  • Participants were categorized into 'good' and 'poor' olfactory imagery groups based on a questionnaire.
  • Odor perception (intensity, pleasantness, familiarity, edibility) and sniffing behavior were recorded.

Main Results:

  • Good olfactory imagers rated odors as significantly more familiar and edible compared to poor imagers.
  • Good imagers exhibited longer sniffing durations for all tested odorants.
  • These findings were consistent across both studies.

Conclusions:

  • Stronger olfactory imagery is associated with enhanced odor processing and greater access to odor semantics.
  • Behavioral differences in odor perception, specifically sniffing patterns, may explain variations in olfactory imagery.
  • The study supports a connection between the vividness of olfactory imagery and the depth of odor information processing.