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Establishing Ethical Standards and Best Practices for Shinrin Yoku Guides: A Comprehensive Guide by the Shinrin Yoku Association

Establishing Ethical Standards and Best Practices for Shinrin Yoku Guides: A Comprehensive Guide by the Shinrin Yoku Association

The “Code of Conduct and Guidelines” document of the Shinin Yoku Association, outlines the ethical framework and operational standards for Shinin Yoku (forest bathing) guides, instructors, and teachers. The document emphasizes key principles such as respect for nature, professionalism, inclusivity, safety, continuous learning, and collaboration. It provides detailed guidelines for maintaining high-quality service, ethical behavior, and environmental stewardship. The document also highlights competencies required for Shinin Yoku guides, including ethical adherence, session management, building trust, effective communication, awareness, and preparedness. By adhering to these standards, the Shinin Yoku Association aims to ensure a consistent, authentic, and safe experiences/Shinin Yoku sessions, while promoting the sustainability and integrity of the practice.

Establishing Ethical Standards and Best Practices for Shinrin Yoku Guides: A Comprehensive Guide by the Shinrin Yoku Association

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Investigating Relationships between Nature Connection, Emotion Regulation, and Mindful Attention Awareness

Investigating Relationships between Nature Connection, Emotion Regulation, and Mindful Attention Awareness

Research has demonstrated that a connection with nature positively affects human well-being. This study aimed to investigate whether this connection influences emotion regulation and mindfulness through correlational and predictive analyses. The sample consisted of 90 adults from various international backgrounds who completed a survey assessing their connection with nature using the Nature Connection Index (NCI), Difficulties in Emotion Regulation Scale (DERS-18), and Mindfulness Attention Awareness Scale (MAAS). Results revealed a medium effect size (R? = .152, Rª adj_ = .142), indicating that approximately fifteen percent of the variability in emotion regulation can be attributed to higher nature connection. Nature connection was found to be a significant predictor of
emotion regulation difficulties, F(1, 88) = 15.77, p < .001. A significant negative relationship was observed between nature connection and difficulties in emotion regulation (B = -0.59, ‹(89) = -3.97, p < .001; r(90) = -0.39, p < 001). Spearman’s rank-order correlations showed significant negative relationships between NCI and several subscales of the DERS-18: difficulty engaging in goal-directed behavior (rs = -0.28, n = 90, p < .01), lack of emotional awareness (rs = -0.27, n = 90, p < .01), and limited access to emotion regulation strategies (rs = -0.36, n = 90, p < .01). These findings suggest practical implications for the well-being of the general population. Specifically, increasing one’s connection with nature appears to improve emotion regulation, particularly in goal-oriented behaviors, emotional awareness, and access to emotion regulation strategies. Therefore, activities that enhance nature connection could serve as effective preventive measures against decreased well-being.

Investigating Relationships between Nature Connection, Emotion Regulation and Mindful Attention Awareness

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The Relationship Between Nature Connection Index and Difficulties in Emotion Regulation Scale. Results Digest

The Relationship Between Nature Connection Index and Difficulties in Emotion Regulation Scale. Results Digest

The current study investigates the relationship between the Nature Connection Index (NCI) and the Difficulties in Emotion Regulation Scale (DERS-18) to understand how connection with nature influences emotion regulation. Data was collected from a diverse sample, and Spearman’s rank-order correlations were conducted to explore the relationships between NCI and the subscales of DERS-18. The findings revealed significant negative relationships between NCI and several aspects of emotion regulation, including difficulty engaging in goal-directed behavior, lack of emotional awareness, and limited access to emotion regulation strategies. These results suggest that greater nature connectedness is associated with better emotion regulation capabilities. Practical implications include enhancing focus and productivity through nature-based activities, improving emotional awareness by spending time in nature, and developing effective emotion regulation strategies via nature-connected interventions. These insights underscore the importance of integrating nature into daily routines and therapeutic practices to enhance emotional health and well-being.

The Relationship Between Nature Connection Index and Difficulties in Emotion Regulation Scale. Results Digest

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Research Digest: Medical Empirical Research on Forest Bathing (Shinrin-Yoku)

Research Digest: Medical Empirical Research on Forest Bathing (Shinrin-Yoku)

The systematic review by Wen et al. (2019) explores the health benefits of forest bathing (Shinin-yoku) and evaluates the methodological quality of related studies.

Originating in Japan, forest bathing involves immersive, multi-sensory experiences in forest environments to enhance physical and psychological health. The review, spanning studies from January 2015 to April 2019, utilized PubMed, Embase, and Cochrane Library databases, selecting 28 out of 210 initially retrieved papers. The methodological quality was assessed using the Downs and Black checklist, revealing higher quality in randomized controlled trials (RCTs) compared to non-randomized controlled trials (NRCTs). The findings indicate significant health benefits. Forest bathing has been shown to reduce blood pressure and improve heart rate variability, indicating cardiovascular benefits. Neuroendocrine effects include lower levels of cortisol, adrenaline, and other stress hormones. Metabolic benefits are observed with decreased triglyceride levels and increased adiponectin. Immune function is enhanced, demonstrated by the increased activity of natural killer cells and other immune markers. Psychological well-being is improved with better mood, reduced anxiety and depression, and overall enhanced emotional well-being. The review underscores the importance of addressing subhealth symptoms prevalent in urban lifestyles and calls for more high-quality, interdisciplinary studies to fully understand the therapeutic mechanisms of forest bathing. Practical implications for Shinin Yoku guides include structuring sessions to engage all five senses, integrating mindfulness and meditation, monitoring health markers, ensuring safety, and using evidence-based interventions to maximize benefits.

Research Digest: Medical Empirical Research on Forest Bathing (Shinrin-Yoku)​

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Selected Facts from the History of Research on Phytoncides and Phytoncide Therapy

Selected Facts from the History of Research on Phytoncides and Phytoncide Therapy

Abstract

This article revisits the contested early history of phytoncides within Soviet bioscience through the work of Boris P. Tokin. It traces the concept’s evolution from incidental observations in 1928–1930—yeast death near crushed onion during experiments on Gurvich’s “mitogenetic rays”—to Tokin’s 1932 realization, catalyzed in Tashkent, that volatile plant emissions can exert bactericidal and fungicidal effects on pathogens. The formal codification and naming of “phytoncides” in 1942, amid wartime shortages of antiseptics, accelerated clinical trials and hospital use, helped seed the term “phytoncidotherapy,” and intersected with the emergence of domestic aromatherapy. The paper clarifies frequent biographical inaccuracies (e.g., Tokin’s birthplace in Grushevka; his moves and appointments; the 1945 relocation to Leningrad) and situates his work within institutional and political contexts, including repression in 1937–1939 and the subsequent development of the Kyiv school under V. G. Drobotko. It also examines the term’s dual etymology—its widely taught Greco-Latin derivation and an unofficial acronymic reading linked to Filatova, Tokin, and Nebolyubova—and documents Tokin’s conceptual broadening (by 1964) from essential oils to a wider class of volatile and non-volatile plant substances produced by both wounded and healthy tissues. Rather than fix a single “discovery date,” the article argues that novelty lies in establishing a general plant antimicrobial system that transcends essential oils, thereby reframing the origins of phytoncidotherapy and underscoring Tokin’s underrecognized role in the history of aromatherapy.

DOI: 10.65410/syjI2202508en

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Modalities of Spending Time in the Forest

Modalities of Spending Time in the Forest

Abstract

This article examines spending time in the forest as a multidimensional form of human–nature engagement that ranges from incidental exposure to sustained and meaningful practice. While a growing body of research indicates that even passive contact with natural environments can support physiological regulation, emotional balance, and cognitive restoration, not all forest experiences develop into enduring practices. The article therefore distinguishes between isolated forest encounters and forest engagement as an ongoing practice, arguing that the latter is characterized not only by repetition, but also by intentionality, continuity, personal meaning, and integration into everyday life.

Particular attention is given to four modalities of forest engagement: time in the forest as a free and accessible resource, guided forest therapy as a mindfulness practice, guided forest therapy as a pathway to nature connection, and time in the forest as a nature-based intervention. Rather than treating these modalities as fixed or mutually exclusive categories, the article conceptualizes them as dynamic modes of engagement that may remain occasional or evolve into sustained practices depending on a range of interacting variables. These include frequency, regularity, perceived benefit, accessibility, emotional meaning, agency, guidance, reflective integration, place attachment, and compatibility with daily life.

By introducing these variables, the article offers a framework for understanding how forest engagement moves from momentary experience to repeated, embodied, and personally significant practice. It argues that the therapeutic and transformative potential of time in the forest depends not only on exposure itself, but on the quality, depth, and continuity of the relationship formed with the natural environment. In this sense, forest engagement is understood not merely as an activity, but as a potential practice of restoration, self-regulation, nature connectedness, and long-term well-being.

 

DOI: 10.65410/syjI3202601en

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Exploring the Physiological Markers of Well-Being and Their Connection to Forest Therapy (Forest Bathing, Shinrin Yoku)​

Exploring the Physiological Markers of Well-Being and Their Connection to Forest Therapy (Forest Bathing, Shinrin Yoku)

Publisher: Milena Agnieszka Guziak Publishing (みPublishing)
ISBN: 978-83-68042-20-7

The philosophical concept of ‘well-being’ refers to how well a person’s life is going for them, encompassing more than just health. Health may contribute to well-being, but it is not the sole component. Philosophers also consider the ‘negative’ aspects of a person’s life, such as experiencing terrible agony, which might result in a negative well-being state. They distinguish well-being from terms like ‘welfare’ and ‘happiness,’ the latter of which may refer to short-lived states of contentment in everyday language but often has a broader scope in philosophical discussions. The term ‘well-being’ is preferred over ‘happiness’ to encompass the broader notion of what makes life good for an individual, including non-human entities like plants. This concept, linked to the Greek term ‘eudaimonia,’ highlights the idea of flourishing rather than mere happiness. Aristotle’s view that a friend’s well-being is closely tied to one’s own suggests that well-being can be interconnected without conflating individual interests.

While understanding well-being from a philosophical perspective is important, we must also consider the physiological evidence on well-being, which will be useful in the context of forest bathing, forest therapy, or Shinrin Yoku. Mental health, as defined by the World Health Organization, is “a state of well-being in which the individual realizes their own abilities, can cope with the normal stresses of life, can work productively, and is able to make a contribution to their community” (World Health Organization, 2005). This definition emphasizes that mental health encompasses more than just the absence of mental disorders, including the broader concept of well-being. 

In the past two decades, interest in well-being and happiness has surged, with an increasing number of scientific publications across various disciplines. Well-being is recognized as a protective factor linked to overall physical and mental health (Diener et al., 2017; Greenspoon and Saklofske, 2001). Research shows that the positive effects of well-being are independent of the negative impacts of conditions like depression, highlighting the importance of studying well-being (Howell et al., 2007). Additionally, well-being is associated with positive life outcomes, including longer, healthier lives (James et al., 2019; Kim et al., 2019; Zaninotto and Steptoe, 2019), academic achievement, happy marriages, and increased productivity at work ( Lyubomirsky et al., 2005; Maccagnan et al., 2019; Oswald et al., 2015).

Behavioral and molecular genetics studies indicate that biological and physiological factors significantly influence individual differences in well-being. Recent genome-wide association studies (GWAS) have identified specific genetic variants associated with well-being with findings suggesting gene enrichment in the subiculum (part of the hippocampus) and GABAergic interneurons as related to the well-being spectrum (Baselmans et al., 2019a). These genetic discoveries provide insights into the physiology of well-being, though comprehensive research on physiological measures remains limited as of today.

So what are these physiological markers?

HORMONES

Hormones are chemical messengers produced by the endocrine glands and released into the bloodstream, traveling to various organs and tissues to regulate physiological processes, including growth, metabolism, and reproduction. These hormones are present in different biological fluids such as blood, urine, saliva, and even hair. Although both hormones and neurotransmitters serve as messengers, they differ significantly in their site of release, action, and speed. Hormones act throughout the entire body and have slower, longer-lasting effects, while neurotransmitters operate locally within the central nervous system and act more rapidly.

There are three primary stress hormones: adrenaline (indicating mental stress), noradrenaline (indicating physical stress), and cortisol (indicating both) (de Vries et al., 2021). Adrenaline, released from the adrenal medulla, increasee anticipation, unpredictability, and emotional arousal. Noradrenaline, predominantly a neurotransmitter of the sympathetic system, rises during physical activity. Cortisol is released by the hypothalamic-pituitary-adrenal axis in response to stress.

A review by Rector and Friedman (2018) highlighted the association between well-being and hormones. Adrenal hormones like cortisol can cross the blood-brain barrier and influence subjective experiences, including well-being. The most commonly studied hormone in this context is cortisol, which can be measured through various means, including overall levels, daily decline (diurnal slope), and the response after waking up (cortisol awakening response, CAR) (Chida and Steptoe, 2009; Fries et al., 2009). 

In relation to forest therapy,  forest bathing or Shinrin Yoku, research has shown that  forest atmosphere (phytoncides) can reduce stress hormones like adrenaline, noradrenaline, and cortisol, aiding in stress management (Park et al., 2010). The effect of forest bathing on adrenaline is more significant than on noradrenaline, suggesting a greater impact on mental stress than physical stress. The very first study conducted inJapan (Miyazaki, 1990, 1996) and other studies also support the finding that Shinrin Yoku reduces cortisol levels in saliva, further indicating its efficacy in stress reduction.

In addition, recent research has highlighted the complex interactions between the hypothalamic-pituitary-adrenal (HPA) axis and the autonomic nervous system (ANS) throughout the lifespan. These interactions are crucial in understanding how stress affects overall well-being.

The HPA axis plays a central role in the body’s response to stress by regulating cortisol release, a hormone often associated with stress. The autonomic nervous system, which includes the sympathetic and parasympathetic nervous systems, controls involuntary bodily functions such as heart rate and digestion. The parasympathetic nervous system, in particular, is involved in promoting relaxation and recovery.

Studies in healthy adults and adolescents have shown that higher cortisol levels are often associated with lower heart rate variability (HRV), a measure of the variation in time between heartbeats. HRV is driven by parasympathetic activity, with higher HRV indicating better autonomic flexibility and a greater ability to adapt to stress. Therefore, the finding that higher cortisol levels correspond to lower HRV suggests a link between elevated stress levels and reduced autonomic function (Philippi et. al., 2024)

This relationship has significant implications for stress and well-being. Chronic stress can lead to sustained high cortisol levels, which may impair the body’s ability to regulate stress responses effectively. This impairment can manifest as reduced HRV, indicating a decreased capacity for physiological recovery and relaxation. Consequently, this can negatively impact overall well-being, as the body remains in a heightened state of stress.

Understanding the interplay between the HPA axis and ANS can inform interventions aimed at improving well-being. For instance, practices like Shinrin-yoku (forest bathing) have been shown to reduce cortisol levels and increase HRV, promoting relaxation and stress recovery. By enhancing parasympathetic activity and lowering cortisol levels, such interventions can help mitigate the adverse effects of chronic stress on well-being (Li, 2022)

INFLAMMATORY MARKERS

The immune system is the body’s defense mechanism against infections and diseases, involving various biological structures and processes. When the immune system is activated, it triggers an inflammatory response, leading to the production of inflammatory markers like interleukin (IL)-1β, IL-6, interferon (IFN)-γ, tumor necrosis factor (TNF)-α, and C-reactive protein (CRP). These cytokines act as chemical messengers, activating different parts of the immune response. Baseline levels of these cytokines have been associated with various traits and behaviors. For instance, CRP levels rise in response to acute stress, and individuals with depression often have higher baseline CRP levels (Khandaker et al., 2014; Osimo et al., 2019).

Proinflammatory cytokines are signaling molecules that play a crucial role in the body’s immune response by promoting inflammation. When these cytokines increase, it typically indicates an ongoing immune response to injury, infection, or stress. Conversely, a decrease in proinflammatory cytokines suggests a reduction in inflammation, which can be beneficial in managing chronic diseases and improving overall health.

In relation to forest therapy, shinrin yoku or forest bathing, several studies have investigated the effects of forest-based interventions like walking in forest environments on the levels of proinflammatory cytokines. 

A. Walking Intervention in Healthy Male University Students:

Measured Cytokines: IL-6 and TNF-α.

Findings: Significant changes were observed in both cytokines, indicating a modulation of the immune response through physical activity in a forest setting.

B. Walking Intervention for Patients with Chronic Obstructive Pulmonary Disease (COPD):

Measured Cytokines: IL-6, IL-8, IFN-γ, IL-1β, and TNF-α.

Findings: Significant changes were reported in IL-6, IL-8, IFN-γ, and IL-1β, but not in TNF-α. This suggests that the intervention had a broad impact on reducing inflammation, although the response of TNF-α varied.

B. Walking Intervention for Chronic Heart Failure Patients:

Measured Cytokines: IL-6 and TNF-α.

Findings: A significant decrease in IL-6 levels was observed, while no significant change was reported in TNF-α levels. This indicates that IL-6 might be more sensitive to the intervention in this patient population.

C. Additional studies further support these findings:

IL-6: In four studies, IL-6 levels were measured, and two of them reported significant decreases. This suggests that interventions in natural settings can effectively reduce IL-6, a marker of inflammation.

 IL-8: Two studies reported significant decreases in IL-8 levels indicating a reduction in inflammation.

TNF-α: In three studies, TNF-α levels were measured, with two reporting significant decreases . This suggests a potential but variable impact on TNF-α.

C-Reactive Protein (CRP): CRP levels were measured in three studies, with one reporting a significant decrease .CRP is another marker of inflammation, and its reduction indicates a positive anti-inflammatory effect.

D. Other Markers:

One study  measured several other markers, including IL-1β, IFN-γ, pulmonary and activation-regulated chemokine, tissue inhibitor of metalloproteinase-1, and surfactant protein D, all of which were significantly decreased. This comprehensive reduction indicates a broad anti-inflammatory effect of the intervention.

The interplay between stress, inflammation, and the hypothalamic-pituitary-adrenal (HPA)

Stress and Inflammation: When the body experiences stress, it activates inflammatory responses both in the brain and throughout the body (peripherally). This has been supported by substantial evidence (Rohleder, 2014; Calcia et al., 2016).

Communication Between Systems: The neuroendocrine system (which regulates hormones) and the immune system communicate with each other. During stress, this communication involves the activation of the HPA axis through the secretion of corticotropin-releasing hormone (CRH).

Role of CRH: CRH is a hormone that plays a key role in stress response. It typically suppresses immune responses by prompting the release of glucocorticoids (GCs) from the adrenal glands. GCs are known for their immunosuppressive and anti-inflammatory properties (Sorrells et al., 2009).

Pro-inflammatory Effects of GCs: While GCs are generally anti-inflammatory, recent research has shown that they can also have pro-inflammatory effects (Elenkov, 2008). They can enhance the expression of inflammasomes like NLRP3, which promote the secretion of pro-inflammatory cytokines such as IL-1β in response to signals like adenosine triphosphate (ATP) (Busillo et al., 2011).

Feedback Loop: Pro-inflammatory cytokines (IL-1, IL-6, and TNF-α) further stimulate the HPA axis, leading to increased levels of adrenocorticotropic hormone (ACTH) and glucocorticoids. These hormones then act to inhibit the production of the cytokines, creating a feedback loop (Alley et al., 2006; Danese et al., 2007; Steptoe et al., 2007; Miller et al., 2008).

The connection between stress, the hypothalamic-pituitary-adrenal (HPA) axis, inflammation, and the nervous system 

Stress and the Nervous System

Stress Response Activation: When the body perceives stress, the nervous system, specifically the sympathetic nervous system (SNS), is activated. This triggers the “fight or flight” response, preparing the body to respond to the threat.

Hypothalamic-Pituitary-Adrenal (HPA) Axis: The hypothalamus, a region in the brain, responds to stress by releasing corticotropin-releasing hormone (CRH). CRH signals the pituitary gland to release adrenocorticotropic hormone (ACTH), which then prompts the adrenal glands to release glucocorticoids (GCs) such as cortisol.

Glucocorticoids (GCs) and Immune System

Immune Suppression: Initially, GCs help to suppress the immune response and reduce inflammation, preventing the body from overreacting to stress.

Pro-inflammatory Role: Despite their anti-inflammatory properties, GCs can also enhance the expression of inflammasomes like NLRP3, promoting the secretion of pro-inflammatory cytokines such as IL-1β in response to signals like adenosine triphosphate (ATP). This dual role means that while GCs can reduce inflammation, they can also contribute to it under certain conditions.

Pro-inflammatory Cytokines and the Nervous System

Cytokine Signaling: Pro-inflammatory cytokines (IL-1, IL-6, TNF-α) can communicate with the nervous system, influencing brain function and behavior. These cytokines can stimulate the HPA axis, leading to further production of ACTH and cortisol, creating a feedback loop that regulates both stress and inflammation.

Nervous System Influence: Chronic stress and sustained high levels of pro-inflammatory cytokines can affect the nervous system, leading to alterations in neurotransmitter function and potentially contributing to mental health disorders such as depression and anxiety.

Autonomic Nervous System (ANS)

Sympathetic Nervous System (SNS): The SNS, part of the autonomic nervous system, is responsible for the immediate “fight or flight” response, releasing adrenaline and noradrenaline, which prepare the body for rapid action.

Parasympathetic Nervous System (PNS): The PNS promotes relaxation and recovery, counterbalancing the SNS. High levels of stress can impair the PNS, leading to a reduced ability to relax and recover, which can affect overall well-being.

Heart Rate Variability (HRV) and Well-being

HRV as an Indicator: HRV, which measures the variation in time between heartbeats, is driven by parasympathetic activity. Higher HRV indicates better autonomic flexibility and a greater ability to adapt to stress. Lower HRV, often associated with higher cortisol levels, suggests reduced autonomic function and a decreased capacity for physiological recovery.

The body’s response to stress is designed to protect you by managing inflammation and preventing the immune system from overreacting. However,  if stress is constant or chronic, this system can become unbalanced. Chronic stress can lead to prolonged inflammation, which can be harmful and contribute to various health issue

Abbreviations

CRH (Corticotropin-Releasing Hormone): A hormone released by the hypothalamus that stimulates the release of ACTH from the pituitary gland, initiating the body’s response to stress.

GCs (Glucocorticoids): A class of steroid hormones released by the adrenal glands. They are known for their ability to suppress immune responses and reduce inflammation. However, recent research suggests they can also have pro-inflammatory effects under certain conditions.

NLRP3 (NOD-, LRR-, and pyrin domain-containing protein 3): A type of inflammasome, which is a multi-protein complex involved in the activation of inflammatory responses. It plays a key role in the secretion of pro-inflammatory cytokines like IL-1β.

IL-1β (Interleukin-1 beta): A pro-inflammatory cytokine produced by activated macrophages. It is part of the body’s immune response to infections and injuries and plays a role in the development of inflammation.

ATP (Adenosine Triphosphate): A molecule that carries energy within cells. It can act as a danger signal in the extracellular space, activating inflammasomes like NLRP3.

IL-1 (Interleukin-1): A group of 11 cytokines, of which IL-1β is a prominent member, involved in the regulation of immune and inflammatory responses.

IL-6 (Interleukin-6): A cytokine that plays a role in inflammation and infection responses. It is produced by various cell types, including T cells and macrophages.

TNF-α (Tumor Necrosis Factor-alpha): A cytokine involved in systemic inflammation and the acute phase reaction. It is produced primarily by macrophages.

ACTH (Adrenocorticotropic Hormone): A hormone produced by the pituitary gland that stimulates the production and release of glucocorticoids (like cortisol) from the adrenal cortex.

______________

Writing in progress.

Miyazaki, Y., 1990. 森林浴の心理的効果と唾液中コルチゾール. 日生気誌(Jpn.J.Biometeor.)27(Suppl.). 

Miyzaki, Y., 1996. 森の香. ISBN 97849383446

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A Little Bit More about Pleasure in Aesthetic Experiences

A Little Bit More about Pleasure in Aesthetic Experiences

Publisher: Milena Agnieszka Guziak Publishing (みPublishing)
ISBN: 978-83-68042-15-3

Almost all philosophical scholars agree that pleasure is a typical aspect of aesthetic experience, though some, such as Carroll (2006) and Adorno (1997), argue it is neither essential nor necessary. While they hold this view, denying the importance of pleasure in aesthetic experience overlooks individual needs and the various purposes it may serve. For Shinrin Yoku, Forest Bathing, or Forest Therapy Guides, and those who find solace in the forest, the experience of pleasure is essential and/or necessary. Even if it cannot always be precisely defined or described, there is an underlying sense of admiration, curiosity, wonder, and creativity that inherently leads to what seems to be a form of pleasure rather than suffering – the felt sense of undefinable. 

The source of this pleasure is not always clear, especially when considering views that art serves no function beyond its own existence – the art for its own sake. It would be utterly naive to think the same of the forest as a living ecosystem and  as a provider for Forest Therapy or Shinrin Yoku experiences – guided or non-guided. Some propose that pleasure in aesthetic experience stems from the positive evaluation of an object or its creator, the joy of engaging our mental faculties, the relief from practical pressures, the acquisition of knowledge, or the connection with others. The claim that pleasure derives from the positive evaluation of an object is particularly popular, suggesting we take pleasure in an object’s intrinsic value, functionality, or the skill of its creator.

In the forest, these sources of pleasure become palpable. The beauty of a towering tree or a delicate flower can evoke a deep sense of admiration for nature’s intrinsic value. Engaging with the forest through sensory activities of our choice, such as feeling the texture of bark, stimulates our mental faculties and seems to bring joy. The tranquility of the forest, when seen  as  a restorative environment, offers a reprieve from daily stresses.  Discovering new aspects of the natural world through Shinrin Yoku practice may also bring a sense of wonder and knowledge or even inspiration by and/or pleasure in the facilitation skills of the guide. 

Pleasure can be understood as a phenomenological feeling with a positive hedonic underlining or as a pro-attitude with positive content. The enjoyment of mental activity, a view championed by Kant (1914), posits that the free play of our mental faculties provides pleasure. This liberation from structured thought may offer a joyful experience to some, whilst others may preferred a more structured engagement. The element of free play and agency is crucial for Shinrin Yoku invitations and in Shinrin Yoku or Forest Therapy sessions. The participants, likewise guides,  have power to liberate themselves from what stands in their way of expressing the self authentically. 

Schopenhauer (1969) argued that aesthetic experience offers a reprieve from the suffering of practical life. Collingwood (1958) suggested that expressing and clarifying emotions through art brings pleasure by transforming and controlling these feelings. Other theories focus on the pleasure of gaining knowledge or understanding, with thinkers like Goodman (1976) emphasizing the joy of discovery. Lastly, some associate pleasure in aesthetic experience with connecting to others, whether through the artist’s inner life or shared reactions to the art.

As it can be noticed, aesthetic experience theories from a philosophical perspective have much to offer when attempting to grasp a sense of immersion in the forest or other contexts nature provides. These theories provide a framework for understanding the process when we engage deeply with nature. 

Definitions

Phenomenological Feeling: This term relates to the subjective, first-person experience of an individual. It’s about how an experience feels from the inside, encompassing all the sensory, emotional, and cognitive aspects of that experience.

Positive Hedonic Underlining: “Hedonic” pertains to pleasure and pain. A positive hedonic tone means that the experience is pleasurable or enjoyable. It’s the aspect of the feeling that makes it pleasant rather than neutral or unpleasant.

So, a phenomenological feeling with a positive hedonic tone is an internal, subjective experience that is distinctly pleasant. This could be the feeling of joy, contentment, or satisfaction that one might experience when engaging in an aesthetically pleasing activity, such as creating a mandala from nature’s gifts (a beautiful piece of art).

Further Reading

Carroll, Noël, 2006, “Aesthetic experience: A question of content,” in Kieran (ed.) 2006, pp. 69–97.

Components of aesthetic experience: aesthetic fascination, aesthetic appraisal, and aesthetic emotion

Adorno, Theodor, 1997, Aesthetic Theory, Gretel Adorno and Rolf Tiedemann (eds.), Robert Hullot-Kentor (trans.), Minneapolis: University of Minnesota Press.

Kant, Immanuel, 1914, Critique of Judgment, J. H. Bernard, D.D., D.C.L. (trans.), Macmilian and Co., Limited

Schopenhauer, Arthur, 1969, The World as Will and Representation, E.F.J. Payne (trans.), Indian Hills, CO: Falcon’s Wing Press.

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Aesthetic Responses to Natural Scenes

Aesthetic Responses to Natural Scenes

Publisher: Milena Agnieszka Guziak Publishing (みPublishing)
ISBN: 978-83-68042-16-0

As a Shinrin Yoku guide and person who simply feels the forest, one of the aspects of facilitating forest bathing sessions is witnessing the myriad ways in which natural scenes elicit deep, emotional responses from participants, which are not forced by the guide but rather are in an unfolding process with its own pace. These responses, ranging from simple appreciation to complex feelings of awe and wonder, are not only inherently valuable but also contribute significantly to psychological and behavioral well-being. The connection between humans and nature may go beyond mere preference; it may encompass  emotional and perceptual experiences that are be deeply rooted in our sense of self and  identity,

Engaging with the aesthetic qualities of nature during Shinrin Yoku sessions can lead to increased well-being, prosocial behaviors, and a stronger inclination towards environmental stewardship. By understanding the interplay between the inherent properties of natural landscapes and the psychological processing of these properties by the participant, we can appreciate why certain environments resonate deeper with us.

Range of Aesthetic Responses:

  • Natural scenes evoke aesthetic responses from simple liking to complex emotional states like awe and wonder (Joye & Bolderdijk, 2015; Silvia et al., 2015).
  • These responses have intrinsic value and are linked to psychological and behavioral benefits, such as increased well-being and prosocial behaviors (Capaldi et al., 2017; DeLucio & Mugica, 1994; Zhang, Howell & Iyer, 2014; Zhang et al., 2014).

Environmental Aesthetics:

  • Research traditionally focuses on preferences for different landscapes (e.g., forests, savannahs) and their formal properties (Heerwagen & Orians, 1993; Ulrich, 1983; Yang et al., 2021).
  • Aesthetic experiences result from an interaction between landscape properties and the viewer’s processing of these properties (Jacobsen, 2006).

Psychological Connection:

  • The unity of perceiver and object is essential for aesthetic experiences of nature (Berleant, 1992).
  • Positive aesthetic outcomes occur when an artwork or natural scene aligns with an important aspect of the viewer’s identity (Pelowski et al., 2017).

Connectedness to Nature:

  • Reflects the degree to which nature is incorporated into one’s sense of self (Mayer & Frantz, 2004; Perrin & Benassi, 2009).
  • Characterized by emotional attachment and beliefs about one’s connection to the natural world (Schultz, 2002).

Impact on Aesthetic Sensitivity:

  • Individuals with higher connectedness to nature report greater restorative effects, preference for landscapes, and positive emotional outcomes (Berto et al., 2018; Davis & Gatersleben, 2013; McMahan et al., 2018; Tang, Sullivan & Chang, 2015).
  • They also have enhanced perceptual qualities of natural scenes and are more emotionally affected by degraded landscapes (Clayton, 2021).

Attention and Aesthetic Experience:

  • Higher connectedness to nature is associated with increased visual engagement with natural scenes (Bingjing, Chen & Shuhua, 2022; Wu et al., 2013).
  • Enhanced attention allows for more detailed extraction of image features, contributing to improved aesthetic evaluation (van den Berg, Joye & Koole, 2016).

Mediation by Attention:

  • Visual attention (measured by dwell time) mediates the relationship between connectedness to nature and aesthetic responses (Brieber et al., 2014; Palumbo et al., 2023).
  • Greater visual attention leads to a deeper appreciation of the image’s aesthetic qualities.

Empirical Findings:

  • Studies show a positive correlation between viewing time and perceived restorativeness of scenes (van den Berg, Joye & Koole, 2016).
  • Individuals higher in connectedness to nature spend more time exploring natural features within scenes (Bingjing, Chen & Shuhua, 2022; Wu et al., 2013).

DEFINITIONS

Dwell time is a measure of the amount of time a person spends looking at a particular area or object within a scene. In the context of aesthetic responses to natural scenes, dwell time typically refers to the total duration that a viewer’s gaze is fixed on specific elements of a natural landscape during a viewing episode. This measure is often used in eye-tracking studies to quantify visual attention.

Perceived Restorativeness of Scenes refers to how individuals perceive and evaluate the restorative potential of a particular environment or scene. For example, restorative environments are settings that help individuals recover from mental fatigue, stress, and negative emotions. Natural environments, such as forests, parks, and gardens, are often considered highly restorative.

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Aesthetic Philosophy in Shinrin Yoku Practice

Aesthetic Philosophy in Shinrin Yoku Practice in Brief

Publisher: Milena Agnieszka Guziak Publishing (みPublishing)
ISBN: 978-83-68042-17-7

In an earlier article, I provided a concise overview of aesthetic experiences, which will be beneficial for developing practical invitations for Shinrin Yoku sessions moving forward. 

Form and Function

Invitation: “Take a moment to observe the form and structure of the natural elements around you. Notice the symmetry of leaves, the proportionality of tree branches, and the harmonious shapes found in the forest. Let your mind appreciate these forms without thinking about their function or use.”

Power to Please

Invitation: “Find a spot in the forest where you feel particularly drawn. Focus on the sensations this place evokes in you. Is it the play of light through the leaves, the sound of rustling trees, or the fragrance of the earth? Allow yourself to fully experience the pleasure these sensations bring.”

Merit

Invitation: “Walk slowly and mindfully along the path. As you do, take note of anything that captures your attention—a flower, a rock, a bird. Consider what it is about this object that merits your admiration. What qualities make it beautiful or intriguing to you?”

Emotional Expression

Transfer: “Choose a natural element that speaks to you—perhaps a tree, a stream, or a meadow. Sit quietly with it and imagine the emotions it might express if it were alive like you. What stories or feelings might it share?”

Projection: “As you walk, try to empathize with the forest itself. Imagine what it feels like to be a tree swaying in the wind, or a leaf drifting to the ground. How does this change your perception of the forest?”

Correspondence: “Look for patterns in nature that resonate with your own feelings. Perhaps the gentle curve of a stream mirrors your sense of calm, or the rugged bark of a tree reflects your resilience. What connections can you find?”

Transformation: “Reflect on any emotions you are carrying with you today. Find a quiet spot to sit and let the forest help transform these feelings. Maybe the whispering leaves can soothe your worries, or the strength of the trees can bolster your confidence.”

Fundamental Nature

Invitation: “Spend some time contemplating the larger essence of the forest. How does being here connect you to the broader world, to the fundamental rhythms and cycles of nature? What truths about life do you feel the forest reveals to you?”

Pleasure

Invitation: “Walk slowly and allow yourself to feel the joy in the simple act of moving through the forest. Pay attention to how your body feels as it moves, the sensation of the ground under your feet, and the air on your skin. Relish the pleasure of these sensations.”

Conceptualization

Invitation: “While exploring the forest, let go of labeling or categorizing what you see. Instead, simply experience each element as it is. Notice the colors, shapes, and textures without trying to name or define them.”

Imagination

Free Play: “Find a comfortable spot to sit or lie down. Close your eyes and let your imagination wander. Picture the forest as a living, breathing entity. What stories does it tell? What images come to mind?”

Creative Engagement: “As you walk, engage with the forest as if you are part of a story or a play. Imagine you are a character in this natural world. How does this perspective shift your experience?”

Emotion

Invitation: “Tune into your emotional state as you move through the forest. Let the sights, sounds, and smells of nature evoke feelings within you. Whether it’s joy, peace, nostalgia, or even melancholy, embrace these emotions fully.”

Disinterest

Invitation: “Practice observing the forest with a sense of disinterest. This doesn’t mean lack of interest, but rather appreciating the forest without any desire to change or use it. Simply take in the beauty of nature for its own sake.”

Normativity

Invitation: “As you experience the forest, consider that your feelings and responses are not just personal but could be shared with others. Reflect on what it is about this environment that you think everyone should appreciate. How would you share this experience with others?”

From Encyclopedia of Shinrin Yoku

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