Psychophysiological Responses of Cut Flower Fragrances as an Olfactory Stimulation by Measurement of Electroencephalogram in Adults

Horticultural therapy (HT) is green care that can help improve and recover the health of modern people living in cities through natural experiences. Many studies have been conducted to determine HT's therapeutic effects and underlying mechanisms, but investigation for developing readily applica...

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Bibliographic Details
Published in:International journal of environmental research and public health 2022-09, Vol.19 (18), p.11639
Main Authors: Wu, Yu-Tong, Lee, A-Young, Choi, Na-Yoon, Park, Sin-Ae
Format: Article
Language:English
Subjects:
Adult
Adults
Anxiety
Arousal
Attention Deficit Disorder with Hyperactivity - psychology
Blood pressure
Bulletin boards
Dementia
EEG
Electroencephalography
Emotional factors
Emotions
Experiments
Flowers
Flowers & plants
Horticulture
Humans
Mental depression
Odorants
Older people
Prefrontal cortex
Prefrontal Cortex - physiology
Questionnaires
Therapy
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Summary:Horticultural therapy (HT) is green care that can help improve and recover the health of modern people living in cities through natural experiences. Many studies have been conducted to determine HT's therapeutic effects and underlying mechanisms, but investigation for developing readily applicable clinical techniques is insufficient. We aimed to investigate adults' brain activity and emotional state during flower arrangement (FA) with different flowers in an HT program. We recruited thirty adults and used a randomized cross-over study method to set them to participate in five FA tasks at 90-s intervals. While performing FA tasks, the participants' prefrontal cortex brain waves were measured by a wireless electroencephalography device and their emotional states between FA tasks were measured by questionnaires. Results showed that each FA task resulted in a different attention level of the participants. The participants showed the highest attention level during FA with stocks and carnations, while FA with lilies showed the lowest attention level among the five FA tasks. Instead, the participants showed the highest arousal, tension, and anxiety for emotional states during FA with lilies. Therefore, this study confirmed the differences in attention level and emotional changes according to flower types for using clinical techniques of HT for various clients.
ISSN:1660-4601
1661-7827
1660-4601
DOI:10.3390/ijerph191811639