New! Sign up for our free email newsletter.
Science News
from research organizations

The nose reveals our relationship with our emotions

Researchers have conducted a series of olfactory tests on alexithymia, a condition marked by reduced emotional awareness and the inability to describe experienced emotions

Date:
October 26, 2017
Source:
Scuola Internazionale Superiore di Studi Avanzati
Summary:
An alexithymic individual has difficulty, to a greater or lesser degree, in relating to emotions. New research seeks to shed light on new aspects of the condition using olfactory tests. The results demonstrate that one of the characteristics of alexithymia is the altered physiological response to olfactory stimuli. The tests also showed that there are differences in reactions between subjects characterized by affective alexithymia and those with cognitive alexithymia, which compromises the ability to identify, express and distinguish emotions.
Share:
FULL STORY

Do you express your emotions? Are you able to name them, talk about them, relate to your feelings? If your answer is not an unqualified yes, you might be among the 10 percent of the healthy population who has difficulty processing the emotions they experience: a psychological condition known as alexithymia.

An alexithymic individual has difficulty, to a greater or lesser degree, in relating to the sensations -- ranging from joy to fear, from disgust to anger -- which make up our experience. New research conducted at SISSA in Trieste and published in the scientific journal Scientific Reports seeks to shed light on new aspects of the condition, using a hitherto completely untested approach. Specifically, given the close link which exists between the perception of smells and emotions, the scientists Cinzia Cecchetto, Raffaella Rumiati and Marilena Aiello used olfactory tests: "There is a partial overlap between the areas in our brains which deal with olfactory perception and those which process emotions. A test such as this may, therefore, be particularly suitable for studying this specific psychological condition," explains Aiello, who coordinated the research.

62 individuals divided into three groups according to the severity of alexithymia (high, medium and low) underwent a series of olfactory tests in order to investigate their reaction to different types of stimulation. The scientists found that alexithymic individuals differ from others in their reaction to smells. What specifically distinguishes them are their physiological parameters, such as their heart rate or the electrical conductivity of their skin, which resulted accelerated. The tests also showed that there are differences in reactions between subjects characterised by affective alexithymia, in which the sphere of sensations, imagination and creativity is restricted, and those with cognitive alexithymia, which compromises the ability to identify, express and distinguish emotions.

"The results obtained," explain Cinzia Cecchetto and Marilena Aiello, "show that one of the characteristics of alexithymia is the altered physiological response to olfactory stimuli." They also point to another interesting fact: "Contrary to what one might expect, this study shows how the physiological reactions of alexithymic individuals to emotions induced by smells are not less but rather more intense. It is as if these subjects find themselves in a situation of perpetual, extreme activation in relation to their emotions which appears to make them insensitive to changes in them, to differences, to the colour shades that enrich our daily lives. It is a counterintuitive yet particularly significant scientific observation."


Story Source:

Materials provided by Scuola Internazionale Superiore di Studi Avanzati. Note: Content may be edited for style and length.


Journal Reference:

  1. Cinzia Cecchetto, Raffaella Ida Rumiati, Marilena Aiello. Alexithymia and emotional reactions to odors. Scientific Reports, 2017; 7 (1) DOI: 10.1038/s41598-017-14404-x

Cite This Page:

Scuola Internazionale Superiore di Studi Avanzati. "The nose reveals our relationship with our emotions." ScienceDaily. ScienceDaily, 26 October 2017. <www.sciencedaily.com/releases/2017/10/171026135355.htm>.
Scuola Internazionale Superiore di Studi Avanzati. (2017, October 26). The nose reveals our relationship with our emotions. ScienceDaily. Retrieved March 4, 2024 from www.sciencedaily.com/releases/2017/10/171026135355.htm
Scuola Internazionale Superiore di Studi Avanzati. "The nose reveals our relationship with our emotions." ScienceDaily. www.sciencedaily.com/releases/2017/10/171026135355.htm (accessed March 4, 2024).

Explore More
from ScienceDaily

RELATED STORIES