![]() Plantations and trees ( Lin et al., 2014) as well as patches of grass ( Huang et al., 2020) can play a major role in restoring positive moods and affective states in concrete urban environments. The simple exposition to nature may support human wellbeing. Crowded streets elicit negative emotions and behaviors, which accentuate psychological stress and feelings of aggression ( Engelniederhammer et al., 2019), whereas the exposure to road traffic and noise causes physiological stress, expressed as hypertension ( Bluhm et al., 2007). Urban elements such as visibility ( Knöll et al., 2018) and building facades ( Elsadek et al., 2019) have been reported to trigger important levels of perceived stress and fatigue. The concrete infrastructure of a busy urban scenario plays an important role in the levels of psychological and emotional wellbeing of its citizens ( Handy et al., 2002). Applicable to a broad range of research topics in the psychological sciences, explicit guidelines are made available to share computer code and data sets for further exploitation. Virtual reality is reported here as an innovative method to quantify psychological experiences during free exploration in gait. However, greater means in heart rates were observed in the environments presenting colorful designs, suggesting that colors may be a powerful tool to trigger alertness and pleasure in Grey urban cities. Finally, physiological responses indicated that mean heart rates were similar across environments and predicted the physical effort of the task. Gaze behaviour presented longer fixation times with colorful designs than without. Spontaneous walking was slower with colorful designs than without. VR results provided nevertheless more detailed description of user experience with the possibility to quantify changes in gaze strategy as a function of the presence or absence of color designs. Results in VR revealed similar results than that reported in natural settings: participants walked slower and had higher heart rates in Green than in Grey urban settings, indicating more pleasurable experiences. The reactions of 36 adult participants were evaluated in Grey and Green VR environments of an urban university campus. ![]() Virtual Reality (VR) was here used to test the impact of colorful floor markings on the spontaneous speed of walking, gaze behaviour, as well as perceived changes in and physiological mesures of affective states. In the present study, we offer a detailed report on how virtual reality may provide a controlled environment for immersive user testing. ![]() However, high quality psychological measures in natural settings are difficult to collect. Green environments are said to have a positive impact on spontaneous physical activity and well-being.
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