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Croy I, Bierling A. Smells as Communication Pathways - why Emotions Pass through the Nose. Laryngorhinootologie 2023; 102:S93-S100. [PMID: 37130533 DOI: 10.1055/a-1935-3214] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
For many species, the sense of smell is the most important sensory system for interacting with the environment and conspecifics. In contrast, the role of perception and communication of chemosensory information in humans has long been underestimated. The human sense of smell was considered less reliable, so that it was given less importance compared to visual and auditory sensory impressions. For some time now, a growing branch of research has been dealing with the role of the sense of sell in emotion and social communication, which is often only perceived subconsciously. This connection will be examine in more detail in this article. First, he basics regarding the structure and function of our olfactory system will be described for better understanding and classification. Then, with this background knowledge, the significance of olfaction for interpersonal communication and emotions will be discussed. Finally, we conclude that people suffering from olfactory disorders have specific impairments in their quality of life.
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Affiliation(s)
- Ilona Croy
- Institut für Klinische Psychologie, Friedrich-Schiller-Universität Jena
- Klinik für Psychotherapie und Psychosomatik, Universitätsklinikum Carl Gustav Carus Dresden
| | - Antonie Bierling
- Institut für Klinische Psychologie, Friedrich-Schiller-Universität Jena
- Klinik für Psychotherapie und Psychosomatik, Universitätsklinikum Carl Gustav Carus Dresden
- Institut für Materialwissenschaft und Nanotechnik, Technische Universität Dresden
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Zakrzewska M, Liuzza MT, Olofsson JK. Body odor disgust sensitivity (BODS) is related to extreme odor valence perception. PLoS One 2023; 18:e0284397. [PMID: 37083734 PMCID: PMC10120931 DOI: 10.1371/journal.pone.0284397] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Accepted: 03/30/2023] [Indexed: 04/22/2023] Open
Abstract
Odors are important disease cues, and disgust sensitivity to body odors reflects individual differences in disease avoidance. The body odor disgust sensitivity (BODS) scale provides a rapid and valid assessment of individual differences. Nevertheless, little is known about how individual differences in BODS might correlate with overall odor perception or how it is related to other differences in emotional reactivity (e.g., affect intensity). We investigated how BODS relates to perceptual ratings of pleasant and unpleasant odors. We aggregated data from 4 experiments (total N = 190) that were conducted in our laboratory, and where valence and intensity ratings were collected. Unpleasant odors were body-like (e.g., sweat-like valeric acid), which may provide disease cues. The pleasant odors were, in contrast, often found in soap and cleaning products (e.g., lilac, lemon). Across experiments, we show that individuals with higher BODS levels perceived smells as more highly valenced overall: unpleasant smells were rated as more unpleasant, and pleasant smells were rated as more pleasant. These results suggest that body odor disgust sensitivity is associated with a broader pattern of affect intensity which causes stronger emotional responses to both negative and positive odors. In contrast, BODS levels were not associated with odor intensity perception. Furthermore, disgust sensitivity to odors coming from external sources (e.g., someone else's sweat) was the best predictor of odor valence ratings. The effects were modest in size. The results validate the BODS scale as it is explicitly associated with experimental ratings of odor valence.
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Affiliation(s)
- Marta Zakrzewska
- Department of Clinical Neuroscience, Karolinska Institutet, Solna, Sweden
| | - Marco Tullio Liuzza
- Department of Medical and Surgical Sciences, "Magna Graecia" University of Catanzaro, Catanzaro, Italy
| | - Jonas K Olofsson
- Department of Psychology, Stockholm University, Stockholm, Sweden
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Blomkvist A, Izzo G, Vaccaro MG, La Vignera S, Brunetti A, Aversa A, Liuzza MT. The Scent of Monogamy: Self-Reported Olfactory Function Predicts Sexual Well-Being and Infidelity in an Italian Population. ARCHIVES OF SEXUAL BEHAVIOR 2022; 51:2879-2889. [PMID: 34791581 PMCID: PMC8597879 DOI: 10.1007/s10508-021-02109-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2020] [Revised: 06/16/2021] [Accepted: 07/14/2021] [Indexed: 05/11/2023]
Abstract
Previous studies have shown that olfactory function plays an essential role in the bonding of a romantic relationship. Body odors, in particular, seem involved in both mate choices and other intimate behaviors. Our sense of smell is also crucial to detect possible pathogen threats, by activating a suitable disgust reaction. Previous studies have shown that disgust sensitivity is negatively related to sociosexuality, and disgust generally inhibits our sexual drive. In the present study, we explored the possible relation between olfactory function, pathogen disgust sensitivity, sociosexuality, sexual well-being, and infidelity through a web survey. Our exploratory analyses found that, in a large Italian sample (N = 1107), among those in a stable relationship, self-reported olfactory function predicted sexual well-being (p < .05) and negatively predicted infidelity (p < .05) when controlling for other relevant sociodemographics variables. Moreover, the relation between self-reported olfactory function and sexual well-being was mediated by pathogen disgust sensitivity. Although significant, these results must be interpreted with caution, because the effect sizes were small.
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Affiliation(s)
- Anna Blomkvist
- Department of Psychology, Stockholm University, Stockholm, Sweden
| | - Giulia Izzo
- Department of Experimental and Clinical Medicine "Gaetano Salvatore", Università degli Studi "Magna Græcia" di Catanzaro, 88100, Catanzaro, Italy
| | - Maria Grazia Vaccaro
- Neuroscience Research Center, Università Degli Studi "Magna Græcia" di Catanzaro, Catanzaro, Italy
- Department of Medical and Surgical Sciences, Università degli Studi "Magna Græcia" di Catanzaro, Catanzaro, Italy
- Neuroimaging Research Unit, Institute of Molecular Bioimaging and Physiology, National Research Council, Catanzaro, Italy
| | - Sandro La Vignera
- Department of Clinical and Experimental Medicine, University of Catania, Catania, Italy
| | - Antonio Brunetti
- Department of Health Sciences, Università degli Studi "Magna Græcia" di Catanzaro, Catanzaro, Italy
| | - Antonio Aversa
- Department of Experimental and Clinical Medicine "Gaetano Salvatore", Università degli Studi "Magna Græcia" di Catanzaro, 88100, Catanzaro, Italy.
| | - Marco Tullio Liuzza
- Department of Medical and Surgical Sciences, Università degli Studi "Magna Græcia" di Catanzaro, Catanzaro, Italy
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Tybur JM, Croijmans IM, van Huijstee D, Çınar Ç, Lal V, Smeets MA. Disgust sensitivity relates to affective responses to – but not ability to detect – olfactory cues to pathogens. EVOL HUM BEHAV 2022. [DOI: 10.1016/j.evolhumbehav.2022.04.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Coulthard H, Abdullahi N, Bell K, Noon E. Understanding disgust-based food rejection in picky and non-picky eaters: Willingness to touch and taste familiar foods with changes. Food Qual Prefer 2022. [DOI: 10.1016/j.foodqual.2021.104442] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Beutler S, Ladner LR, Hummel T, Croy I. A New Method for a Shorter and Valid Assessment of Olfactory Threshold in Repeated Measurement Designs Based on the Sniffin’ Sticks Test. CHEMOSENS PERCEPT 2021. [DOI: 10.1007/s12078-021-09291-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Abstract
Introduction
The Sniffin’ Sticks threshold test is widely used to assess olfactory threshold due to its high reliability and validity. Nevertheless, this test procedure is quite long with an average duration of 10 to 20 min. In study designs that require multiple olfactory threshold tests on short intervals, this could exhaust participants. To counteract this limitation, we developed the informed-four-reversal (INFOUR) short version of the Sniffin’ Sticks threshold test for repeated measurement designs and piloted it in a sample of normosmic participants.
Methods
Forty-two participants performed the original Sniffin’ Sticks version before being assigned either to the control group that repeated the original version or to the test group that conducted the INFOUR short version.
Results
The correlation between the original version at T1 and INFOUR at T2 was r = .75 and did not differ significantly from the retest reliability of the original version. Compared to the original version, the INFOUR took 42% less time to perform.
Conclusion
The INFOUR leads to a significant time saving, while maintaining good validity.
Implications
Therefore, this approach has the potential to be a useful tool for study protocols with repeated olfactory threshold measurements. In particular, when research protocols are time intensive or testing needs to the shortened, because the interventional effects are short or subtle.
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Sozinov AA, Laukka S, Lyashchenko AI, Siipo A, Nopanen M, Tuominen T, Alexandrov YI. Greater learning transfer effect for avoidance of loss than for achievement of gain in Finnish and Russian schoolchildren. Heliyon 2020; 6:e04158. [PMID: 32551391 PMCID: PMC7292919 DOI: 10.1016/j.heliyon.2020.e04158] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2018] [Revised: 04/30/2020] [Accepted: 06/05/2020] [Indexed: 10/25/2022] Open
Abstract
Classification of behavior into principal categories of approach and avoidance is grounded in evolutionary considerations and multiple results of behavioral, self-report, and brain-activity analyses. Contrasted via measures of cognitive processes, avoidance is accompanied by greater cognitive engagement than approach. Considering outcome as a key constituent of behavioral underpinnings, we interpret approach/avoidance distinction in terms of structure of experience: avoidance domain provides more detailed interaction with the environment, than approach domain. Learning outwardly similar behaviors aimed at gain or loss outcomes manifests formation of different structures that underlie further learning. Therefore, we predicted difference of learning transfer between gain and loss contexts that was revealed here by introducing two tasks for different groups of schoolchildren in Finland and Russia. The cultural specificity of gain/loss differences was also evident with employed measures, including error rate and post-error slowing. The results support that avoidance-motivated behavior is organized as a more complex organism-environment interaction, than the approach-motivated behavior.
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Affiliation(s)
- A A Sozinov
- V.B. Shvyrkov Lab. Neural Bases of Mind, Institute of Psychology RAS, Moscow, Russia.,Faculty of Psychology, State Academic University for the Humanities, Moscow, Russia
| | - S Laukka
- Learning Research Lab., Department of Education, University of Oulu, Oulu, Finland
| | - A I Lyashchenko
- Faculty of Psychology, State Academic University for the Humanities, Moscow, Russia.,D.V. Ryabinkin's School #1392, Moscow, Russia
| | - A Siipo
- Learning Research Lab., Department of Education, University of Oulu, Oulu, Finland
| | - M Nopanen
- Learning Research Lab., Department of Education, University of Oulu, Oulu, Finland
| | - T Tuominen
- Learning Research Lab., Department of Education, University of Oulu, Oulu, Finland
| | - Yu I Alexandrov
- V.B. Shvyrkov Lab. Neural Bases of Mind, Institute of Psychology RAS, Moscow, Russia.,Department of Psychology, National Research University Higher School of Economics, Moscow, Russia.,Moscow State University of Psychology and Education, Moscow, Russia
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