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Odor perception and beliefs about risk

P Dalton1

  • 1Monell Chemical Senses Center, Philadelphia, PA 19104, USA.

Chemical Senses
|August 1, 1996
PubMed
Summary

Cognitive factors, not just sensitivity, influence odor perception. How an odor is perceived, whether healthy or hazardous, changes adaptation and sensitization responses.

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Area of Science:

  • Psychology
  • Neuroscience
  • Sensory Science

Background:

  • Odor perception variability is often linked to individual sensitivity.
  • An information-processing approach considers both reception and evaluation of olfactory information.
  • Cognitive factors may play a role in modulating odor perception.

Purpose of the Study:

  • To investigate if factors influencing odor information evaluation affect odor quality judgment and adaptation.
  • To explore the impact of cognitive framing on olfactory perception and adaptation.

Main Methods:

  • Two experiments were conducted involving surveys and odor exposure.
  • Participants rated common olfactory stimuli for healthfulness/hazardousness.
  • Odor adaptation/sensitization was measured under different instructional contexts.

Main Results:

  • Instructional context influenced odor quality perception.
  • Beliefs about odor healthfulness affected adaptation (healthy: adaptation; hazardous: sensitization).
  • Detection thresholds indicated adaptation typical of continuous exposure, despite varied perceptual responses.

Conclusions:

  • Cognitive factors can modulate sensory perception of odor exposure.
  • This modulation may explain unusual adaptation patterns in sensitive individuals or unexpected situations.
  • Odor perception is influenced by evaluation processes beyond simple sensory reception.

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