“…Such evidence has been used to support the idea that certain types of mental state are more difficult to represent than others. However, the order in which different types of mental state are understood varies across cultures, for instance children in Iran and China tend to understand the relationship between seeing and knowing before appreciating that people can have diverse beliefs, whereas the reverse order is observed in children from Australia and the USA (Shahaeian, Nielsen, Peterson, & Slaughter, 2014a; Shahaeian, Nielsen, Peterson, Aboutalebi, & Slaughter, 2014b; Shahaeian et al, 2011; Slaughter & Perez-Zapata, 2014; Wellman et al, 2006, 2011). This makes it likely that the order in which children understand different types of mental state may instead depend on environmental factors such as when they are taught about each type of mental state (Heyes & Frith, 2014), rather than providing any explanation of, or justification for, differential difficulty of mental state representation (Conway & Bird, 2018; Bird, 2017).…”