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Related Concept Videos

Olfaction01:25

Olfaction

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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.
The olfactory receptors are embedded in the cilia of the...
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Physiology of Smell and Olfactory Pathway01:20

Physiology of Smell and Olfactory Pathway

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Humans detect odors with the help of specialized cells located in the upper part of the nasal cavity, called olfactory receptor neurons (ORNs). ORNs possess hair-like structures called cilia, which are receptive to sensations from the inhaled air. When an odorant molecule binds to a specific receptor on the cell of the cilia, it leads to a series of events that ultimately cause the ORN to send electrical signals to the olfactory bulb in the brain through the olfactory nerves.
The olfactory...
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Olfactory Receptors: Location and Structure01:03

Olfactory Receptors: Location and Structure

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The process of olfaction, also known as the sense of smell, is a sophisticated chemical response system. The specialized sensory neurons that facilitate this process, known as olfactory receptor neurons, are situated in an upper segment of the nasal cavity, known as the olfactory epithelium. Olfactory sensory neurons are bipolar, with their dendrites extending from the epithelium's apex into the mucus that lines the nasal cavity. Airborne molecules, when inhaled, traverse the olfactory...
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Simple and Computer-assisted Olfactory Testing for Mice
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Reading the Mind through the Nose: Mentalizing Skills Predict Olfactory Performance.

Katrin T Lübke1, Tobias C Blum1, Bettina M Pause1

  • 1Department of Experimental Psychology, Heinrich-Heine-University Düsseldorf, D-40225 Düsseldorf, Germany.

Brain Sciences
|May 28, 2022
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Summary

Mentalizing ability, the skill to infer others' mental states, is linked to olfactory discrimination in women. Better mentalizing skills correlate with enhanced odor discrimination performance in females, but not males.

Keywords:
empathygendermentalizingolfactionolfactory discriminationsocial skillstheory of mind

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Area of Science:

  • Neuroscience
  • Psychology
  • Sensory Science

Background:

  • Olfaction and social expertise share a documented link.
  • Mentalizing, or "theory of mind," is crucial for social interaction.
  • The relationship between these two abilities requires further investigation.

Purpose of the Study:

  • To investigate the association between mentalizing skills and olfactory discrimination.
  • To determine if this association differs between sexes.

Main Methods:

  • Participants completed the "Reading the Mind in the Eyes" test (RMET) for mentalizing assessment.
  • Odor discrimination was evaluated using the "Düsseldorf Odour Discrimination Test" (DODT).
  • Data from 21 women and 20 men were analyzed.

Main Results:

  • A significant positive correlation was found between mentalizing (RMET) and olfactory discrimination (DODT) scores in women (rho = 0.572, p = 0.042).
  • No significant correlation was observed between mentalizing and olfactory discrimination in men (rho = -0.117, p > 0.999).
  • Results were Bonferroni-corrected for multiple comparisons.

Conclusions:

  • Mentalizing skills may underpin the connection between olfaction and social integration, particularly in women.
  • These findings contribute to understanding the social nature of human olfaction.