The influence of stimulus concentration and odor intensity on relaxing and stimulating perceived properties of odors

Baccarani, Alessia; Brand, Gérard; Dacremont, Catherine; Valentin, Dominique; Brochard, Renaud

doi:10.1016/j.foodqual.2020.104030

Cited by 29 publications

(20 citation statements)

References 83 publications

(128 reference statements)

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“…Furthermore, as yet, there isn't a clear sense of what the key factors determining whether an effect of ambient scent will be demonstrated or not (see also Warren and Warrenburg, 1993;Goel and Grasso, 2004). Potentially relevant here is the fact that our response to an ambient fragrance is likely to depend on its intensity, whether we personally happen to like it, not to mention our perception, or belief, about it being synthetic/artificial versus natural (e.g., Herz, 2000;Wilkins et al, 2007;Baccarani et al, 2020). People's belief about the efficacy of ambient scent, and its likely effect(s), also seems to play a role too (Torii et al, 1988;Lorig and Roberts, 1990;Campenni et al, 2004;Moss et al, 2006).…”

Section: Interim Summarymentioning

confidence: 99%

Using Ambient Scent to Enhance Well-Being in the Multisensory Built Environment

Spence

2020

Front. Psychol.

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The majority of the world's population now lives an urban existence, spending as much as 95% of their lives indoors. The olfactory atmosphere in the built environment has been shown to exert a profound, if often unrecognized, influence over our mood and well-being. While the traditionally malodorous stench to be found indoors (i.e., prior to the invention of modern sanitation) has largely been eliminated in recent centuries, many of the outbreaks of sick-building syndrome that have been reported over the last half century have been linked to the presence of a strange smell in the environment. At the same time, however, there is also growing evidence that consumer behavior can be manipulated by the presence of pleasant ambient odors, while various aromatherapy scents are said to improve our mood and well-being. This Anglophone review focuses primarily on indoor western urban developed spaces. Importantly, the olfactory ambience constitutes but one component of the multisensory atmosphere and ambient odors interact with the visual, auditory, and haptic aspects of the built environment. Surprisingly, the majority of published studies that have deliberately chosen to combine ambient scent with other sensory interventions, such as, for example, music, have failed to increase store sales, or to enhance people's mood and/or well-being, as might have been expected. Such negative findings therefore stress the importance of considering multisensory congruency while, at the same time, also highlighting the potential dangers that may be associated with sensory overload when thinking about the effect of ambient smell on our well-being.

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Section: Interim Summarymentioning

confidence: 99%

Using Ambient Scent to Enhance Well-Being in the Multisensory Built Environment

Spence

2020

Front. Psychol.

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“…More than any other sensory modality, olfaction is like emotion in attributing positive (appetitive) or negative (aversive) valence to the environment, and the close anatomic relations between the systems deployed for olfaction and for emotion [ 3 ] account for the important links found between these two functions [ 4 , 5 , 6 , 7 ].…”

Section: Introductionmentioning

confidence: 99%

Wearable Sensors for Assessing the Role of Olfactory Training on the Autonomic Response to Olfactory Stimulation

Tonacci

Billeci

Mambro

et al. 2021

Sensors

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Wearable sensors are nowadays largely employed to assess physiological signals derived from the human body without representing a burden in terms of obtrusiveness. One of the most intriguing fields of application for such systems include the assessment of physiological responses to sensory stimuli. In this specific regard, it is not yet known which are the main psychophysiological drivers of olfactory-related pleasantness, as the current literature has demonstrated the relationship between odor familiarity and odor valence, but has not clarified the consequentiality between the two domains. Here, we enrolled a group of university students to whom olfactory training lasting 3 months was administered. Thanks to the analysis of electrocardiogram (ECG) and galvanic skin response (GSR) signals at the beginning and at the end of the training period, we observed different autonomic responses, with higher parasympathetically-mediated response at the end of the period with respect to the first evaluation. This possibly suggests that an increased familiarity to the proposed stimuli would lead to a higher tendency towards relaxation. Such results could suggest potential applications to other domains, including personalized treatments based on odors and foods in neuropsychiatric and eating disorders.

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“…Odours, involved in both orthonasal smell and retronasal aroma, influence our affective state (i.e., mood and emotions), well-being and behaviour in everyday situations [ 1 , 2 , 3 ], including dietary behaviours. Odours are largely involved in flavour formation, modulate preference and liking [ 4 ] defining our patterns of food and beverage consumption.…”

Section: Introductionmentioning

confidence: 99%

A New Classification of Perceptual Interactions between Odorants to Interpret Complex Aroma Systems. Application to Model Wine Aroma

Ferreira

de-la-Fuente-Blanco

Sáenz-Navajas

2021

Foods

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Although perceptual interactions are usually mentioned and blamed for the difficulties in understanding the relationship between odorant composition and aromatic sensory properties, they are poorly defined and categorised. Furthermore, old classifications refer mainly to effects on the odour intensity of the mixture of dissimilar non-blending odours and do not consider odour blending, which is one of the most relevant and influential perceptual interactions. Beginning with the results from classical studies about odour interaction, a new and simple systematic is proposed in which odour interactions are classified into four categories: competitive, cooperative, destructive and creative. The first categories are most frequent and display a mild level of interaction, being characterised mostly by analytical processing. The last two are less frequent and activate (or deactivate) configurational processes of object recognition with deep effects on the quality and intensity of the perception. These interactions can be systematically applied to interpret the formation of sensory descriptors from the odorant composition, suggesting that qualitatively the system works. However, there is a lack of quantitative data to work with odour intensities reliably, and a pressing need to systematise the effects of creative interactions.

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The influence of stimulus concentration and odor intensity on relaxing and stimulating perceived properties of odors

Cited by 29 publications

References 83 publications

Using Ambient Scent to Enhance Well-Being in the Multisensory Built Environment

Using Ambient Scent to Enhance Well-Being in the Multisensory Built Environment

Wearable Sensors for Assessing the Role of Olfactory Training on the Autonomic Response to Olfactory Stimulation

A New Classification of Perceptual Interactions between Odorants to Interpret Complex Aroma Systems. Application to Model Wine Aroma

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