A Dose-Response Curve Describing the Relationship Between Urban Tree Cover Density and Self-Reported Stress Recovery

Abstract

Although it is well established that viewing nature can help individuals recover from a stressful experience, the dose-response curve describing the relationship between tree cover density and stress recovery is totally unclear. A total of 160 participants engaged in a standard Trier Social Stress Test to induce stress. Participants were then randomly assigned to watch 1 of 10 three-dimensional videos of street scenes that varied in the density of tree cover (from 2% to 62%). Participants completed a Visual Analog Scale questionnaire at three points in the experiment. Analysis revealed a positive, linear association between the density of urban street trees and self-reported stress recovery, adjusted R² = .05, F(1, 149) = 8.53, p < .01. This relationship holds after controlling for gender, age, and baseline stress levels. A content analysis of participants’ written narratives revealed a similar but even stronger association. These findings suggest that viewing tree canopy in communities can significantly aid stress recovery and that every tree matters.

Keywords

dose-response curve tree cover density stress recovery Visual Analog Scale 3-D visual media

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References

Aronsson

(1999). Influence of worklife on public health. Scandinavian Journal of Work, Environment & Health, 25, 597-604.

Beil

Hanes

(2013). The influence of urban natural and built environments on physiological and psychological measures of stress-a pilot study. International Journal of Environmental Research and Public Health, 10, 1250-1267.

Bowler

D. E.

Buyung-Ali

L. M.

Knight

T. M.

Pullin

A. S.

(2010). A systematic review of evidence for the added benefits to health of exposure to natural environments. BMC Public Health, 10, Article 456.

Bratman

G. N.

Hamilton

J. P.

Daily

G. C.

(2012). The impacts of nature experience on human cognitive function and mental health. Year in Ecology and Conservation Biology, 1249, 118-136.

Bryant

R. A.

Harvey

A. G.

Guthrie

R. M.

Moulds

M. L.

(2003). Acute psychophysiological arousal and posttraumatic stress disorder: A two-year prospective study. Journal of Traumatic Stress, 16, 439-443.

Chang

C. Y.

Chen

P. K.

(2005). Human response to window views and indoor plants in the workplace. HortScience, 40, 1354-1359.

Childs

Vicini

L. M.

De Wit

(2006). Responses to the Trier Social Stress Test (TSST) in single versus grouped participants. Psychophysiology, 43, 366-371.

Childs

Wit

(2009). Hormonal, cardiovascular, and subjective responses to acute stress in smokers. Psychopharmacology, 203, 1-12.

Cohen

Miller

G. E.

Rabin

B. S.

(2001). Psychological stress and antibody response to immunization: A critical review of the human literature. Psychosomatic Medicine, 63, 7-18.

10.

Dickerson

S. S.

Kemeny

M. E.

(2004). Acute stressors and cortisol responses: A theoretical integration and synthesis of laboratory research. Psychological Bulletin, 130(3), 355-391.

11.

Dimsdale

J. E.

(2008). Psychological stress and cardiovascular disease. Journal of the American College of Cardiology, 51, 1237-1246.

12.

Grahn

Stigsdotter

U. A.

(2003). Landscape planning and stress. Urban Forestry & Urban Greening, 2, 1-18.

13.

Gump

B. B.

MacKenzie

J. A.

Bendinskas

Morgan

Dumas

A. K.

Palmer

C. D.

Parsons

P. J.

(2011). Low-level Pb and cardiovascular responses to acute stress in children: The role of cardiac autonomic regulation. Neurotoxicology and Teratology, 33, 212-219.

14.

Hartig

Mang

Evans

G. W.

(1991). Restorative effects of natural-environment experiences. Environment and Behavior, 23, 3-26.

15.

Hernandez

Hidalgo

M. C.

(2005). Effect of urban vegetation on psychological restorativeness. Psychological Reports, 96, 1025-1028.

16.

Kahn

P. H.

Jr. Friedman

Gill

Hagman

Severson

R. L.

Freier

N. G.

. . .Stolyar

(2008). A plasma display window?—The shifting baseline problem in a technologically mediated natural world. Journal of Environmental Psychology, 28, 192-199.

17.

Kahn

P. H.

Jr. Severson

R. L.

Ruckert

J. H.

(2009). The human relation with nature and technological nature. Current Directions in Psychological Science, 18, 37-42.

18.

Kaplan

(2001). The nature of the view from home-psychological benefits. Environment and Behavior, 33, 507-542.

19.

Kirschbaum

Pirke

K. M.

Hellhammer

D. H.

(1993). The Trier Social Stress Test–A tool for investigating psychobiological stress responses in a laboratory setting. Neuropsychobiology, 28, 76-81.

20.

Kuo

F. E.

Bacaicoa

Sullivan

W. C.

(1998). Transforming inner-city landscapes: Trees, sense of safety, and preference. Environment and Behavior, 30, 28-59.

21.

Kuo

F. E.

Sullivan

C. W.

(2001). Environment and crime in the inner city: Does vegetation reduce crime? Environment and Behavior, 33, 343-367.

22.

Lara-Munoz

de Leon

S. P.

Feinstein

A. R.

Puente

Wells

C. K.

(2004). Comparison of three rating scales for measuring subjective phenomena in clinical research. I. Use of experimentally controlled auditory stimuli. Archives of Medical Research, 35, 43-48.

23.

Leather

Pyrgas

Beale

Lawrence

(1998). Windows in the workplace: Sunlight, view, and occupational stress. Environment and Behavior, 30, 739-762.

24.

Lee

Park

B. J.

Tsunetsugu

Kagawa

Miyazaki

(2009). Restorative effects of viewing real forest landscapes, based on a comparison with urban landscapes. Scandinavian Journal of Forest Research, 24, 227-234.

25.

Lottrup

Grahn

Stigsdotter

U. K.

(2013). Workplace greenery and perceived level of stress: Benefits of access to a green outdoor environment at the workplace. Landscape and Urban Planning, 110, 5-11.

26.

Marsh-Richard

D. M.

Hatzis

E. S.

Mathias

C. W.

Venditti

Dougherty

D. M.

(2009). Adaptive Visual Analog Scales (AVAS): A modifiable software program for the creation, administration, and scoring of visual analog scales. Behavior Research Methods, 41, 99-106.

27.

Mitchell

Popham

(2008). Effect of exposure to natural environment on health inequalities: An observational population study. Lancet, 372, 1655-1660.

28.

Nordh

Hartig

Hagerhall

C. M.

Fry

(2009). Components of small urban parks that predict the possibility for restoration. Urban Forestry & Urban Greening, 8(4), 225-235.

29.

Parsons

Tassinary

L. G.

Ulrich

R. S.

Hebl

M. R.

Grossman-Alexander

(1998). The view from the road: Implications for stress recovery and immunization. Journal of Environmental Psychology, 18, 113-140.

30.

Prince

Patel

Saxena

Maj

Maselko

Phillips

M. R.

Rahman

(2007). Global mental health 1: No health without mental health. Lancet, 370, 859-877.

31.

Roe

Aspinall

P. A.

(2011). The restorative benefits of walking in urban and rural settings in adults with good and poor mental health. Health & Place, 17, 103-113.

32.

Roe

J. J.

Ward Thompson

Aspinall

P. A.

Brewer

M. J.

Duff

E. I.

Miller

. . .Clow

(2013). Green space and stress: Evidence from cortisol measures in deprived urban communities. International Journal of Environmental Research and Public Health, 10, 4086-4103.

33.

Roux

A. V. D.

(2003). Residential environments and cardiovascular risk. Journal of Urban Health-Bulletin of the New York Academy of Medicine, 80, 569-589.

34.

Steptoe

Brydon

(2009). Emotional triggering of cardiac events. Neuroscience & Biobehavioral Reviews, 33, 63-70.

35.

Tyrvainen

Ojala

Korpela

Lanki

Tsunetsugu

Kagawa

(2014). The influence of urban green environments on stress relief measures: A field experiment. Journal of Environmental Psychology, 38, 1-9.

36.

Ulrich

R. S.

Simons

R. F.

Losito

B. D.

Fiorito

Miles

M. A.

Zelson

(1991). Stress recovery during exposure to natural and urban environments. Journal of Environmental Psychology, 11, 201-230.

37.

Valtchanov

Barton

K. R.

Ellard

(2010). Restorative effects of virtual nature settings. Cyberpsychology, Behavior, and Social Networking, 13, 503-512.

38.

van den Berg

A. E.

Hartig

Staats

(2007). Preference for nature in urbanized societies: Stress, restoration, and the pursuit of sustainability. Journal of Social Issues, 63, 79-96.

39.

van den Berg

A. E.

Maas

Verheij

R. A.

Groenewegen

P. P.

(2010). Green space as a buffer between stressful life events and health. Social Science & Medicine, 70, 1203-1210.

40.

von Dawans

Kirschbaum

Heinrichs

(2011). The Trier Social Stress Test for Groups (TSST-G): A new research tool for controlled simultaneous social stress exposure in a group format. Psychoneuroendocrinology, 36, 514-522.

41.

Ward Thompson

Roe

Aspinall

Mitchell

Clow

Miller

(2012). More green space is linked to less stress in deprived communities: Evidence from salivary cortisol patterns. Landscape and Urban Planning, 105, 221-229.

42.

Wells

N. M.

Evans

G. W.

(2003). Nearby nature: A buffer of life stress among rural children. Environment and Behavior, 35, 311-330.

43.

White

M. P.

Alcock

Wheeler

B. W.

Depledge

M. H.

(2013). Would you be happier living in a greener urban area? A fixed-effects analysis of panel data. Psychological Science, 24, 920-928.

44.

Wichrowski

Whiteson

Haas

Mola

Rey

M. J.

(2005). Effects of horticultural therapy on mood and heart rate in patients participating in an inpatient cardiopulmonary rehabilitation program. Journal of Cardiopulmonary Rehabilitation, 25, 270-274.

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