Fractals and Health

Fractals and Health

By: Rob Zielkowski

Fractals are geometric patterns that are repeated over scale (in space and/or time) to produce “self-similar” irregular shapes and surfaces that cannot be represented by classical (Euclidean) geometry (such as rectangles, cubes, and pyramids).   Although practically absent in our man-made environment, fractals are found everywhere in nature – in trees, leaves, snowflakes, waves, rocks, clouds, as well as in our own bodies (our skin, lungs, brains, circulatory system, heartbeats, even the sloshing of amniotic fluid before we were born).  Fractal geometry is at the foundation of all of creation which is natural (not made by humans).

There is a growing body of evidence that viewing particular fractals can produce profoundly beneficial health effects in humans.  To understand this, we need to first briefly review the findings of Biophila and Attention Restoration Theory (A.R.T.)

BIOPHILIA

The word Biophilia, used by psychologist Erich Fromm and popularized by E.O. Wilson, means “love of life or living systems”.   Modern day psychologists have acquired empirical evidence in support of the Biophilia Hypothesis, which states that human beings have an innate biological predisposition to react positively to nature.  In the words of Roger Ulrich of The University of Texas A&M, “There are well over 60 published scientific studies….which have consistently shown” that people will experience profound psychological and physiological stress relief by merely viewing natural scenery, and that “this effect is fairly generalized across different systems, from the brain, to the heart, to the sympathetic nervous system, to breathing, to stress hormones, and so on” [1].

A.R.T.

Attention Restoration Theory (A.R.T.) asserts that exposure to nature instantly and unconsciously produces significant improvements in cognitive functioning.  Experiments conducted at the University of Michigan by psychologists Stephan and Rachel Kaplan and their colleagues are part of a rapidly growing body of evidence for A.R.T., showing a myriad of ways in which exposure to nature can contribute to brain health [2-7].

At the University of Illinois, Frances Kuo and William Sullivan performed experiments which not only validated A.R.T, but also extended it by demonstrating that viewing nature, in addition to improving health and brain function, actually lowered levels of irritability, aggression, and violence [8, 9].

Researchers at the University of Washington, led by Peter Kahn Jr., have discovered that these positive health effects can also be obtained by viewing technological simulations of natural scenery on plasma screens [10, 11]. At Oberlin College, F. Stephan Mayer arrived at similar results in three separate studies, which concluded that watching a video of nature even helped increase a subject’s ability to resolve personal problems [12].

THE MODERN ENVIRONMENT

In our modern world, exposure to nature is being reduced and humans are progressively becoming deprived of its restorative effects.  This causes an unhealthy buildup of stress.  Prolonged stress mobilization in humans produces a plethora of harmful consequences, such as increased blood pressure, energy depletion, release of stress hormones, decreased cognitive ability, reduced immune function, etc.  All of these negative effects are quickly reversed by simply looking at natural scenery, and this reversal has been shown to occur in only minutes, even seconds [13, 14].

What exactly is it about simply viewing natural scenery that produces such fast and powerful health benefits?

FRACTALS AND HEALTH

The answer can be found in the very geometry of nature – in fractals.  Researchers at universities around the world have shown that looking at fractal shapes of mid-range complexity generates a sense of well-being and peace in the observer. Measurements of skin conductivity, as well as evaluations of EEG’s and fMRI’s, have led scientists to the conclusion that it is the fractal geometry which underlies the stress reduction and the many positive health benefits of viewing natural scenery [15-20].

Because of their aesthetic appeal, fractals have become popular as computer screen savers, and have been used, usually subconsciously, in some forms of art and architecture.  Why this appeal is apparently universal in humans is the subject of studies done at Harvard Medical School, in which evidence shows that the electrical signal profiles of the human nervous system follow fractal patterns [21, 22].  It seems as if our minds possess the natural inborn propensity to recognize and resonate with fractals.  Regardless of the particular reason or mechanism involved, it is becoming clear that, in the words of philosopher Dr. Yannick Joye of The University of Gent, “it is not the tree that causes these [biophilic] emotional responses, but the fractal mathematics of the tree.”  Plainly put, looking at fractals is relaxing and good for us [23].

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References

[1] Intervento di Roger Ulrich. YouTube VIDEO: http://www.youtube.com/watch?v=wIshna1fJNI, accessed 12/31/12.

[2] Kaplan R & Kaplan S. The Experience of Nature: A Psychological Perspective. Cambridge: Cambridge University Press. 1989.

[3] Kaplan S. Aesthetics, Affect and Cognition. Environment & Behavior.  1987; 19:3-32.

[4] Kaplan S. Perception and landscape: conceptions and misconceptions. In: Environmental Aesthetics: theory, research, and applications. Ed.: Nasar, J. Cambridge: Cambridge University Press;  1988; pp.45-55.

[5] Kaplan S. The restorative benefits of nature: toward an integrative framework. Journal of Environmental Psychology. 1995; 15:169-182.

[6] Kaplan S. Meditation, Restoration, and the Management of Mental Fatigue. Environment and Behavior. 2001; 33(4):480–506.

[7] Berman MG,  Jonidas J, Kaplan S. The Cognitive Benefits of Interacting With Nature. Psychological Science. 2008; 19(12):1207-1212.

[8] Kuo FE & Sullivan WC. Environment and crime in the inner city: Does vegetation reduce crime? Environment & Behavior. 2001; 33(3):343-367.

[9] Kuo FE & Sullivan WC. Aggression and violence in the inner city: Effects of environment via mental fatigue. Environment & Behavior. 2001; 33(4):543-571.

[10] Kahn PH, Severson RL, Ruckert JH. The Human Relation with Nature and Technological Nature. Current Directions in Psychological Science.  2009; 18(1):37-42.

[11] Friedman  B, Freier NG, Kahn PH Jr., Lin P, & Sodeman R. Office window of the future? Field-based analyses of a new use of a large display. International Journal of Human–Computer Studies. 2008; 66:452–465.

[12] Mayer FS, Frantz CM, Bruehlman-Senecal E, & Dolliver K. Why Is Nature Beneficial? The Role of Connectedness to Nature.  Environment and Behavior. 2009; 41:607-643.

[13] Ulrich RS, Simons RF, Losito BD, Fiorito E, Miles MA & Zelson M. Stress recovery during exposure to natural and urban environments. Journal of Environmental Psychology. 1991; 11:201-230.

[14] Ulrich RS, Simons RF & Miles MA. Effects of environmental simulations and television on blood donor stress. Journal of Architectural & Planning Research. 2003; 20(1):38.

[15] Hagerhall CM. Fractal dimension as a tool for defining and measuring naturalness. In: Designing Social Innovation – Planning, Building, Evaluating. Eds: Martens B and Keul AG. Cambridge, MA: Hogrefe and Huber. 2005; 75–82.

[16] Hagerhall CM, Laike T, Taylor RP, Küller M, Küller R, and Martin TP. Investigation of EEG response to fractal patterns. Perception. 2008; 37:1488–1494.

[17] Hagerhall CM, Purcell T, and Taylor RP. Fractal dimension of landscape silhouette outlines as a predictor of landscape preference. Journal of Environmental Psychology. 2004; 24:247–255.

[18] Taylor RP and Sprott JC. Biophilic fractals and the visual journey of organic screen-savers. Nonlinear Dynamics Psychol. Life Sci. 2008; 12(1):117–129.

[19] Taylor RP. Reduction of physiological stress using fractal art and architecture. Leonardo. 2006; 39(3):245–251.

[20] Taylor RP, Spehar B, Van Donkelaar P, and Hagerhall CM. Perceptual and Physiological Responses to Jackson Pollock’s Fractals. Frontiers in Human Neuroscience.  2011; 5(60):1-13.

[21] Anderson CM. From Molecules to Mindfulness: How vertically convergent fractal time fluctuations unify cognition and emotion. Consciousness & Emotion. 2000; 1(2):193-226.

[22] Anderson CM, Mandell AJ, Selz KA, Terry LM, Wong CH, Robinson SR, Robertson SS, Smotherman WP.  The Development of Nuchal Atonia Associated With Active REM Sleep in Fetal Sheep: Presence of Recurrent Fractal Organization. Brain Research. 1998; 787(2):351–357.

[23] Joye Y. Fractal Architecture Could Be Good For You. Nexus Network Journal. 2007; 9:311-320.

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