... The impact of the natural space is thought to be mediated by a number of factors: (1) the size, type or quality of natural features, (2) the proximity, duration or frequency of exposure, and(3)experience features such as types of interaction or different levels of attention, preference or feelings of personal connection(Bratman et al., 2019;. Empirical studies which have examined the impact of nature exposure to cognition and mental health, have used a number of different ways to measure exposure including proximity to nature(Markevych et al., 2014;McCormick, 2017; Nutsford et al., 2013), natural habitat type (see detailed discussion in Chapter 3;Akpinar et al., 2016;Astell-Burt and Feng, 2019;Barnes et al., 2019;Maes et al., 2021;Velarde et al., 2007;Wheeler et al., 2015), nature dose(Cox et al., 2018;Shanahan et al., 2016Shanahan et al., , 2015 and degree of urbanization (Cox et al., 2018; Engemann et al., 2019), amongst others. Meanwhile, cognition and mental health have been measured as reduced depression and blood pressure (Sarkar et al., 2018; Shanahan et al., 2016), improved attention (Amoly et al., 2014), cognition (Dadvand et al., 2015a), sleep (Shin et al., 2020), and stress recovery (Thompson et al., 2012), amongst others. ...