AI Insight
A preregistered study of 36 urban residents in Cologne, Germany found that exposure to urban green spaces, compared to gray spaces, was associated with lower subjective stress, higher affective well-being, and reduced autonomic physiological arousal as measured by cardiac and electrodermal indicators during naturalistic walking. The study used continuous GPS tracking, cardiovascular and electrodermal recording, and ecological momentary assessment to capture real-time psychophysiological responses during transitions between green and gray urban environments. Notably, the physiological benefits of green space exposure appeared to persist even after participants transitioned back into gray environments, suggesting a carry-over effect.
Why it matters
These findings provide real-world psychophysiological evidence supporting the value of urban green infrastructure as a public health tool for reducing stress and potentially lowering the risk of stress-related mental health conditions. Urban planners and policymakers could use this evidence to justify the integration and preservation of green spaces in city design.
⚠️ Preprint – Noch nicht peer-reviewed
Dieser Artikel wurde noch nicht von unabhängigen Experten begutachtet. Die Ergebnisse sind vorläufig und sollten mit Vorsicht interpretiert werden.
Stress is a major risk factor for mental disorders, and urban living is a key environmental contributor. Nature exposure may promote stress recovery and mental health, but how physiological arousal and subjective stress change across green versus gray space during naturalistic urban mobility is poorly understood. This preregistered study (https://doi.org/10.17605/OSF.IO/HF4RW) employed geolocation-based ambulatory assessment to examine psychophysiological arousal and subjective stress during transitions between urban green and gray environments. Thirty-six healthy urban residents completed a counterbalanced circular walking route in Cologne, Germany, with continuous GPS, cardiovascular, and electrodermal recording alongside ecological momentary assessment of subjective stress, affect, and exertion. Green compared to gray spaces were associated with lower subjective stress and higher affective well-being, with cardiac indices reflecting reduced autonomic arousal during green space exposure. Autonomic changes surrounding environmental transitions persisted beyond the immediate transition window, suggesting that physiological benefits of green space exposure extend into subsequent gray environments. These findings underscore the public health potential of urban green infrastructure for preventing stress-related mental health conditions.
Source: Urban green space exposure reduces subjective stress and physiological arousal