Versatile Psychophysiological Potencies of Essential Oils, when Seen as a Function of Behavioral Task Assigned to the Participants after Inhalation

Sugawara, Yu; Shigetho, Asami; Yoneda, Mai; Tuchiya, Tomoko; Yamada, Hiroko; Matumura, Tomomi; Hirano, Miki

doi:10.11114/ijsss.v3i6.1129

Cited by 4 publications

(3 citation statements)

References 57 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The citrus scent was most intense near the hand washbasin and with distance the intensity decreased. The enormous diversity of perceptions of aroma stimuli leads to individual perception of smells which may result in different responses in behavior (Pellegrino et al, 2015; Sugawara et al, 2015). Pinto, Xavier, Calado, and Mariano (2014) have found, by measuring the electrical activity of the brain, that the human response to scent is highly subjective.…”

Section: Resultsmentioning

confidence: 99%

Nudge tools for improving hygiene behavior among food handlers: Case study

Štefančič

Jevšnik

2020

Journal of Food Safety

View full text Add to dashboard Cite

The purpose of this research is to determine the actual state of food handlers' hygiene behavior and analyze the effectiveness of selected nudge tools in the retirement home kitchen. The observation process of the food handlers' work was performed by following a pre-prepared observation checklist. Based on the actual state of hygiene behavior of the food handlers, we consecutively introduced the following nudge tools: stories about foodborne disease outbreaks, the image of a probe thermometer, citrus scent and citrus scent with an inscription. The data were processed using Excel and the calculated proportions of relevance of the criteria for hygiene behavior were compared by stages of observation according to working time. The observation before the introduction of nudge tools revealed that the food handlers in the selected kitchen do not always follow all criteria of hygienic behavior. The nudge tools affected the food handlers differently. The stories about foodborne disease outbreaks used as a nudge tool did not significantly affect the hygiene behavior of the food handlers. The image of a probe thermometer as a nudge tool significantly improved compliance with and control of the critical control points. Citrus scent as a nudge tool had a very different effect on the behavior of the food handlers: some of them were disturbed by the presence of the diffuser, while others felt more relaxed. Citrus scent with a short inscription significantly improved the hygiene behavior of the food handlers at all critical stages of food preparation.

show abstract

Section: Resultsmentioning

confidence: 99%

Nudge tools for improving hygiene behavior among food handlers: Case study

Štefančič

Jevšnik

2020

Journal of Food Safety

View full text Add to dashboard Cite

show abstract

“…Another major component, limonene, highly influenced the human autonomic nervous system parameters and mental conditions [43]. Recently, Sugawara et al [44] investigated the psychophysiological effect of 12 essential oils such as basil, bergamot, cardamom, cinnamon, juniper, lemon, orange, palmarosa, peppermint, sandalwood, spearmint, and ylang ylang. Based on the mental arithmetic and auditory tasks, the authors suggested that these essential oils may have versatile psychophysiological potencies.…”

Section: Discussionmentioning

confidence: 99%

Influence of Binasal and Uninasal Inhalations of Essential Oil ofAbies koreanaTwigs on Electroencephalographic Activity of Human

Seo

Sowndhararajan

2016

Behavioural Neurology

View full text Add to dashboard Cite

Objectives. The present work investigates the effect of essential oil from the twigs of Abies koreana on electroencephalographic (EEG) activity of human brain in order to understand the influence of binasal and uninasal inhalations. Methods. To accomplish this study, the essential oil from the twigs of A. koreana (AEO) was isolated by steam distillation and the EEG readings were recorded using QEEG-8 system from 8 grounding electrodes according to the International 10-20 System. Results. D-Limonene (25.29%), bornyl acetate (19.31%), camphene (12.48%), α-pinene (11.88%), β-pinene (6.45%), and eudesm-7(11)-en-ol (5.38%) were the major components in the essential oil. In the EEG study, the absolute alpha (left frontal and right parietal) and absolute fast alpha (right parietal) values significantly increased during the binasal inhalation of AEO. In the uninasal inhalation, absolute beta and theta values decreased significantly, especially in the right frontal and left and right parietal regions. The results revealed that the AEO produced different EEG power spectrum changes according to the nostril difference. Conclusion. The changes in EEG values due to the inhalation of AEO may contribute to the enhancement of relaxation (binasal inhalation) and alertness/attention (right uninasal inhalation) states of brain which could be used in aromatherapy treatments.

show abstract

“…Iannilli et al [104] investigated the electrophysiological response to food- and non-food-related odors in healthy volunteers and the analyses revealed the specific scalp potential maps for the two conditions. Sugawara et al [150] elucidated the psychophysiological effect of inhaling 12 different essential oils and suggested that essential oils may have versatile psychophysiological properties.…”

Section: Effect Of Inhalation Of Fragrance On Psychophysiological mentioning

confidence: 99%

Influence of Fragrances on Human Psychophysiological Activity: With Special Reference to Human Electroencephalographic Response

2016

View full text Add to dashboard Cite

The influence of fragrances such as perfumes and room fresheners on the psychophysiological activities of humans has been known for a long time, and its significance is gradually increasing in the medicinal and cosmetic industries. A fragrance consists of volatile chemicals with a molecular weight of less than 300 Da that humans perceive through the olfactory system. In humans, about 300 active olfactory receptor genes are devoted to detecting thousands of different fragrance molecules through a large family of olfactory receptors of a diverse protein sequence. The sense of smell plays an important role in the physiological effects of mood, stress, and working capacity. Electrophysiological studies have revealed that various fragrances affected spontaneous brain activities and cognitive functions, which are measured by an electroencephalograph (EEG). The EEG is a good temporal measure of responses in the central nervous system and it provides information about the physiological state of the brain both in health and disease. The EEG power spectrum is classified into different frequency bands such as delta (0.5–4 Hz), theta (4–8 Hz), alpha (8–13 Hz), beta (13–30 Hz) and gamma (30–50 Hz), and each band is correlated with different features of brain states. A quantitative EEG uses computer software to provide the topographic mapping of the brain activity in frontal, temporal, parietal and occipital brain regions. It is well known that decreases of alpha and beta activities and increases of delta and theta activities are associated with brain pathology and general cognitive decline. In the last few decades, many scientific studies were conducted to investigate the effect of inhalation of aroma on human brain functions. The studies have suggested a significant role for olfactory stimulation in the alteration of cognition, mood, and social behavior. This review aims to evaluate the available literature regarding the influence of fragrances on the psychophysiological activities of humans with special reference to EEG changes.

show abstract

Versatile Psychophysiological Potencies of Essential Oils, when Seen as a Function of Behavioral Task Assigned to the Participants after Inhalation

Cited by 4 publications

References 57 publications

Nudge tools for improving hygiene behavior among food handlers: Case study

Nudge tools for improving hygiene behavior among food handlers: Case study

Influence of Binasal and Uninasal Inhalations of Essential Oil ofAbies koreanaTwigs on Electroencephalographic Activity of Human

Influence of Fragrances on Human Psychophysiological Activity: With Special Reference to Human Electroencephalographic Response

Contact Info

Product

Resources

About