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A Study of Community Design, Greenness, and Physical Activity in Children using Satellite, GPS and Accelerometer Data
Fig. 1. Geovisualization of a child’s personal monitoring points show MVPA occurring within green areas and during active transport (* home points shifted for confidentiality). This study examined relationships between greenness exposure and free-living physical activity behavior of children in smart growth and conventionally designed communities. Normalized Difference Vegetation Index (NDVI) was used to quantify children’s (n=208) greenness exposure at 30-s epoch accelerometer and GPS data points. A generalized linear mixed model with a kernel density smoothing term for addressing spatial autocorrelation was fit to analyze residential neighborhood activity data. Excluding activity at home and during school-hours, an epoch-level analysis found momentary greenness exposure was positively associated with the likelihood of contemporaneous moderate-to-vigorous physical activity (MVPA). This association was stronger for smart growth residents who experienced a 39% increase in odds of MVPA for a 10th to 90th percentile increase in exposure to greenness (OR=1.39, 95% CI 1.36–1.44). An individual-level analysis found children who experienced >20 min of daily exposure to greener spaces (>90th percentile) engaged in nearly 5 times the daily rate of MVPA of children with nearly zero daily exposure to greener spaces (95% CI 3.09–7.20).
Read moreIntroduction to Ecopsychology: Science, Totems, and the Technological Species
Ecopsychology: Science, Totems, and the Technological Species An ecopsychology that integrates our totemic selves—our kinship with a more than human world—with our technological selves. We need nature for our physical and psychological well-being. Our actions reflect this when we turn to beloved pets for companionship, vacation in spots of natural splendor, or spend hours working in the garden. Yet we are also a technological species and have been since we fashioned tools out of stone. Thus one of this century’s central challenges is to embrace our kinship with a more-than-human world—”our totemic self”—and integrate that kinship with our scientific culture and technological selves. This book takes on that challenge and proposes a reenvisioned ecopsychology. Contributors consider such topics as the innate tendency for people to bond with local place; a meaningful nature language; the epidemiological evidence for the health benefits of nature interaction; the theory and practice of ecotherapy; Gaia theory; ecovillages; the neuroscience of perceiving natural beauty; and sacred geography. Taken together, the essays offer a vision for human flourishing and for a more grounded and realistic environmental psychology.
Read moreThe Impacts of Nature Experience on Human Cognitive Function and Mental Health
Scholars spanning a variety of disciplines have studied the ways in which contact with natural environments may impact human well-being. We review the effects of such nature experience on human cognitive function and mental health, synthesizing work from environmental psychology, urban planning, the medical literature, and landscape aesthetics. We provide an overview of the prevailing explanatory theories of these effects, the ways in which exposure to nature has been considered, and the role that individuals’ preferences for nature may play in the impact of the environment on psychological functioning. Drawing from the highly productive but disparate programs of research in this area, we conclude by proposing a system of categorization for different types of nature experience. We also outline key questions for future work, including further inquiry into which elements of the natural environment may have impacts on cognitive function and mental health; what the most effective type, duration, and frequency of contact may be; and what the possible neural mechanisms are that could be responsible for the documented effects.
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