The Impact of Green Space on University Students’ Mental Health: The Mediating Roles of Solitude Competence and Perceptual Restoration

With the prevalence of mental health problems among college students, perceptual recovery and the sensory dimensions of perception (PSD) have emerged as crucial environment-related factors for psychological well-being. However, there has been relatively limited research on how these factors directly and indirectly impact the restoration experience of college students in green spaces on campuses. Therefore, the aim of this study was to determine the influence of college students’ intrinsic motivation on their psychological well-being when exposed to campus green spaces. Special attention was given to the role of solitude and perceptual recovery in this process. Research Methodology: Based on a literature review and field research, we classified campus green spaces into eight types based on perceptual dimensions. We collected 550 questionnaires on campus, and the data processing involved structural equation modeling (SEM) and mediation analysis. Findings: A positive correlation was found between perceived sensory dimensions and the recovery experience. College students’ perceptual recovery and ability to be alone emerged as mediating variables in this process. In essence, this study sheds light on the mechanism through which intrinsic motivation impacts the mental health of college students when they engage with campus green spaces.