Attention and Emotion Recovery Effects of Urban Parks during COVID-19—Psychological Symptoms as Moderators

Previous research that compared the restorative effects of natural settings with poor-quality urban settings may have exaggerated the restorative benefits of greenspace. Few studies have been conducted to examine the restorative benefits of green streets and other types of park landscapes on attention and emotion. In addition, it is not clear how negative psychological symptoms (e.g., stress, depression) affect natural’s restorative benefits, especially as the current COVID-19 pandemic has added to people’s psychological burden. In this study, 125 participants were randomly assigned to view one of five videos (green street, lawn, plaza, forest, waterside) for a break after completing an emotion and attention fatigue induction task. Attention function and emotion were measured using the backward digit span test and the Self-Assessment Manikin scale. Stress and depressive symptoms experienced over the last month were measured using the Perceived Stress Scale(PSS-10) and the Patient Health Questionnaire(PHQ-9). Our results indicate that the four park settings showed significant attention function recovery and valence improvement compared to the green streets, while subjects’ arousal changed only over time. Hardscapes (plazas) could provide the same attentional and emotional restorative benefits as natural landscapes (forests, watersides, lawns). In addition, we also found that the mood-improving benefits of natural environments may decrease with increasing depressive symptoms, although chronic stress symptoms did not show the same trend.