Physiological and psychological responses of humans to the index of greenness of an interior space

Choi, Ji‐Young; Park, Sin-Ae; Jung, S.J.; Lee, Ji-Young; Son, Ki-Cheol; An, Youn‐Joo; Lee, Sang‐Woo

doi:10.1016/j.ctim.2016.08.002

Cited by 64 publications

(66 citation statements)

References 24 publications

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“…Furthermore, they also felt significant positive emotions, such as being more comfortable, natural, and relaxed compared with performing the task without plants (Park et al, 2017). According to Choi et al (2016), only a 5% index of indoor greenness could provide benefits in psychophysiological stability by stimulating the autonomic nervous system, such as EEG and heart rate variability, and is associated with positive feelings such as ''clean, '' ''soft,'' ''bright,'' ''warm,'' ''vibrant,'' ''comfortable,'' and ''fresh. '' The results of this study reveal that there were differences in children's EEG response and assignment performance according to the presence or absence of foliage plants during the intensive assignment between genders.…”

Section: Discussionmentioning

confidence: 99%

Foliage Plants Improve Concentration and Emotional Condition of Elementary School Students Performing an Intensive Assignment

Kim¹,

Oh²,

Park³

2020

horts

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This study was conducted to compare the concentration and emotional condition of elementary school students performing an intensive assignment in the presence or absence of foliage plants, using electroencephalography (EEG) and a modified semantic differential method (SDM). In a crossover experimental design, 30 elementary students performed a 3-min intensive age-appropriate arithmetic assignment in the presence or absence of foliage plants. Continuous EEG monitoring in the frontal lobe was performed using a wireless dry EEG device. Immediately thereafter, subjective evaluation of emotions was performed using the SDM. The concentration of the male elementary students was significantly higher when the assignment was performed in the presence vs. absence of plants as evidenced by the increase in the ratio of spectral edge frequency of 50 and a decrease in the relative theta power spectrum in the right frontal lobe. The SDM results revealed a significant psychological relaxation when the assignment was performed in the presence of plants. Therefore, the presence of foliage plants in the space where the elementary students performed the intensive assignment led to positive effects on concentration and emotional condition.

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Section: Discussionmentioning

confidence: 99%

Foliage Plants Improve Concentration and Emotional Condition of Elementary School Students Performing an Intensive Assignment

Kim¹,

Oh²,

Park³

2020

horts

Self Cite

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“…Moreover, since greenness often occurs in recreational spaces such as parks, high greenness is often indicative of proximity to places where people can meet socially or exercise, improving health through social cohesion and physical activity. Finally, although research directly looking at physiological responses to greenness is scarce, experiments have shown that proximity to greenness is associated with greater autonomic activity via measurements of heart rate variability [ 39 ]. Other physiological findings include less pronounced response to stress and better immune function [ 40 ].…”

Section: Discussionmentioning

confidence: 99%

Residential Greenness and Birthweight in the State of Massachusetts, USA

Fong

Kloog

Coull

et al. 2018

IJERPH

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Natural vegetation, or greenness, may benefit maternal health and consequently, fetal growth, by providing opportunities for physical activity and psychological restoration, and decreasing detrimental environmental exposures. We retrieved Massachusetts Birth Registry data from 2001–2013 and investigated the association between residential greenness and birthweight in full-term births (≥37 weeks gestation). We calculated average residential greenness during pregnancy using 250 m normalized difference vegetation index (NDVI) from satellites. We estimated associations between greenness and continuous birthweight, term low birthweight (TLBW: <2500 g), and small for gestational age (SGA: <10th percentile of birthweight stratified by sex and gestational age) adjusted for individual and neighborhood covariates and considered nonlinearity and effect modification. Higher greenness exposure was associated with higher birthweight with stronger associations in the lower than higher range of greenness. Greenness was associated with lower odds of TLBW (OR 0.98; 95% CI 0.97, 0.99 per 0.1 increase in NDVI) and SGA (OR 0.98; 95% 0.97, 0.99) and associations varied by population density (TLBW) and socioeconomic status (TLBW, SGA). Our results suggest that greenness is beneficial to fetal growth exhibited by higher birthweight and lower odds of TLBW and SGA. Unlike prior studies, associations with TLBW and SGA appeared stronger among those with higher socioeconomic status.

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“…Furthermore, a layer of snow can affect the process of visual stimulation. In other studies, different indices of greens induced different effects on relaxation, with lower amounts of observed greens resulting in lower levels of relaxation in participants [19]. Thus, hypothetically, a forest covered by snow might not have the same restorative effect because greens are hidden.…”

Section: Introductionmentioning

confidence: 85%

The Effect of Recreation in a Snow-Covered Forest Environment on the Psychological Wellbeing of Young Adults: Randomized Controlled Study

Bielinis

Łukowski

Omelan

et al. 2019

Forests

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Forest recreation can be successfully conducted for the purpose of psychological relaxation, as has been proven in previous scientific studies. During the winter in many countries, when snow cover occurs frequently, forest recreation (walking, relaxation, photography, etc.) is common. Nevertheless, whether forest therapy conducted in a forest environment with a snow cover will also have a positive effect on psychological indicators remains unknown. Furthermore, male subjects frequently participate in forest therapy experiments, whereas females are rarely involved. Thus, in this study, the effectuality of forest recreation during winter and with snow cover was tested on 32 young females. For these reasons, the experiment involved 15 min periods of relaxation in a forest environment or in an urban street environment, in addition to a pre-test under indoor conditions (randomized controlled study). Four psychological questionnaires Profile of Mood States (POMS), Positive and Negative Affect Schedule (PANAS), Restorative Outcome Scale (ROS), Subjective Vitality Scale (SVS)) were administered to participants before and after interventions. Results showed that participants’ levels of negative mood, as measured by different aspects of the POMS questionnaire (tension/anxiety, anger/hostility, depression/dejection, confusion, and fatigue), decreased after exposure to the forest environment. In contrast, both tension/anxiety and anger/hostility increased in the urban street environment. The indicator of negative affect from the PANAS questionnaire also increased after exposure to the urban street environment, whereas the indicator of positive affect based on PANAS was higher in the forest environment than in the urban street environment. Restorativeness and subjective vitality exhibited higher values after exposure to the forest environment in comparison to those from the control and pre-test. The changes in these indicators demonstrate that forest recreation in the snow during winter can significantly increase psychological relaxation in females, as well as show that recreation can be successfully conducted under these winter conditions.

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Physiological and psychological responses of humans to the index of greenness of an interior space

Cited by 64 publications

References 24 publications

Foliage Plants Improve Concentration and Emotional Condition of Elementary School Students Performing an Intensive Assignment

Foliage Plants Improve Concentration and Emotional Condition of Elementary School Students Performing an Intensive Assignment

Residential Greenness and Birthweight in the State of Massachusetts, USA

The Effect of Recreation in a Snow-Covered Forest Environment on the Psychological Wellbeing of Young Adults: Randomized Controlled Study

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