Effects of Visual Recognition of Green Plants on the Changes of Eeg in Patients With Schizophrenia

Son, Kwang-Ho; Shi, Jia; Um, S.J.; Lee, J.S.; Kwack, Hyeran

doi:10.17660/actahortic.2004.639.24

Cited by 8 publications

(7 citation statements)

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“…It was observed that the activity of alpha wave significantly increased when planting the plant directly. In the study of Son et al (1998), when plants were placed indoors, there was no statistically significant difference overall, but alpha waves increased and delta waves decreased, showing the usefulness of indoor plants in the arousal and stable state of the brain. In this study, when plants were directly planted, the alpha wave activity increased with a high degree of significance.…”

Section: Resultsmentioning

confidence: 91%

Effects of Planting on the Prefrontal Electroencephalogram Activity of University Students

Choi,

Kim,

Shin

et al. 2023

J. People Plants Environ

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Background and objective: This study was conducted from June 1 to August 30, 2021 with 33 students at Daegu Catholic University to investigate the effect of planting on the theta, alpha, beta, and gamma waves of the prefrontal cortex.Methods: For the experiment, the subjects wore electroencephalogram (EEG) sensors and proceeded through the following three steps: 1) preparation stage: looking at the wall (2 min), 2) work stage: planting plants (5 min), and 3) appreciation stage: looking at and appreciating the plants they planted (3 min).Results: As a result of analyzing the total relative values of the preparation, work, and appreciation stages in the raw data (excluding the delta wave, which increases during sleep), the alpha wave increased in the work stage of planting activity (Left: p = .000, Right: p = .000). Alpha waves are brain waves that are activated in states of relaxation, rest, and euphoria. In male students, alpha waves (Left: p = .001, Right: p = .001) were activated in the work stage. In female students, there was a significant difference in all EEG activity between the stages. Theta wave (Left: p = .046, Right: p = .029) was most activated in the appreciation stage, and the alpha wave (Left: p = .000, Right: p = .000) was most activated in the work stage. Beta waves (Left: p = .016, Right: p = .013) and gamma waves (Left: p = .015, Right: p = .011) were found to be inactivated in the work stage.Conclusion: The study results facilitated the investigation of planting effectiveness according to the type of activity by measuring the EEG for each activity stage.

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Section: Resultsmentioning

confidence: 91%

Effects of Planting on the Prefrontal Electroencephalogram Activity of University Students

Choi,

Kim,

Shin

et al. 2023

J. People Plants Environ

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“…Only right-handed participants were included in this study based on previous research demonstrating that people of different handedness differed in their brain activity by Tarkka and Hallett [ 32 ]. In addition, it was based on those who are not currently suffering from a specific disease [ 24 ]. Participants were asked to fast for 2 h before the experiment in order to eliminate the potential effects of caffeine that naturally occurs in various foods, which may stimulate the brain [ 33 ].…”

Section: Methodsmentioning

confidence: 99%

“…Various studies have been conducted assessing the physiological and psychological changes that occur in the visual stimulation with green plants in adults. For example, one study comparing white walls to plants as visual stimuli, found that looking at plants increased the participant’s alpha waves and blood pressure while decreasing their heart rate [ 24 ]. Furthermore, another study comparing no plants to real plants as visual stimuli found that when the participants looked at real plants, there was a reduction in hemoglobin oxide levels in the prefrontal lobe and they reported feeling physiologically relaxed [ 25 ].…”

Section: Introductionmentioning

confidence: 99%

Physiological and Psychological Effects of Visual Stimulation with Green Plant Types

Jeong

Park

2021

IJERPH

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This study was designed to assess the physiological and psychological benefits of visually looking at foliage plants in adults. This study involved 30 adults in their 20s (11 males, 19 females), and using a crossover design, participants looked at four different types of visual stimuli, namely, real plants, artificial plants, a photograph of plants, and no plants for 5 min. Brain waves were measured while viewing each type of plant, and a subjective evaluation of emotions was performed after each visual stimulus. Semantic differential methods (SDM) and Profile of Mood States (POMS) were used for the subjective evaluation. During the real plant visual stimulation, relative theta (RT) power spectrum was increased in the bilateral occipital lobes, while relative high beta (RHB) power spectrum was reduced in the left occipital lobe, indicating a reduction in stress, anxiety, and tension. The subjective survey results revealed that when looking at real plants, the participants exhibited significantly higher “comfort,” “natural,” and “relaxed” scores as well as an increase in positive mood conditions. In conclusion, among the four types of plants, visual stimulation with real plants induces physiological relaxation in adults and has a positive psychological effect.

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“…In two prospective studies with samples of individuals identified as clinically depressed, Gonzalez et al (2009Gonzalez et al ( , 2011 reported that a 12-week TH program significantly reduced depression scores for participants both during the intervention and at 3-month follow-up. And in the most extensive evaluation of TH programs for vulnerable groups to date, Sempik et al (2005) found that such interventions improve nutrition and dietary habits; raise self-esteem and perceptions of self-worth through the status gained from being a "gardener" or "worker"; increase self-confidence and satisfaction by learning new skills, acquiring knowledge, and producing food or craft objects; and reduce social isolation through group activities (see also Son, Song, Um, Lee, & Kwack, 2004;Yamane, Kawashima, Fujishige, & Yoshida, 2004). These outcomes suggest that a sense of accomplishment, focused attention away from the negative, development of potential skills, social contact, tangible products, and a sense of meaning may derive from exposure to TH, all potentially useful outcomes for victims of IPV.…”

Section: Background the Theoretical And Empirical Underpinnings Of Thmentioning

confidence: 99%

From Blue to Green: The Development and Implementation of a Therapeutic Horticulture Program for Residents of a Battered Women’s Shelter

Renzetti

Follingstad

2015

Violence Vict

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The delivery of therapeutic services to clients is influenced by service providers' understanding of the "fit" of a specific program with their service mandate as well as their perceptions of the potential benefits of the program. This article discusses the development and implementation of a therapeutic horticulture (TH) program at a battered women's shelter that serves 17 counties in Central Kentucky. Through semistructured interviews, we gauge the shelter staff's perceptions of the relationship of the TH program to the shelter's overall mission; their sense of the program's benefits for residents, for the shelter as a community organization, and for themselves; and their concerns about the TH program. We consider how these findings may impact future programming at the shelter, and we discuss plans for further evaluation of the TH program in terms of its impact on shelter residents' long-term outcomes.

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Effects of Visual Recognition of Green Plants on the Changes of Eeg in Patients With Schizophrenia

Cited by 8 publications

References 0 publications

Effects of Planting on the Prefrontal Electroencephalogram Activity of University Students

Effects of Planting on the Prefrontal Electroencephalogram Activity of University Students

Physiological and Psychological Effects of Visual Stimulation with Green Plant Types

From Blue to Green: The Development and Implementation of a Therapeutic Horticulture Program for Residents of a Battered Women’s Shelter

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