“…The same ghost stimuli as in Experiment 1 were presented on sheets of paper rather than clued on foam board pieces, and thus children were not able to pick them up or rotate them. In that respect the stimulus presentation was more comparable to previous studies that presented stimuli two-dimensionally on plywood panels (e.g., Marmor, 1975Marmor, , 1977, paper (e.g., Vandenberg & Kuse, 1978;Quaiser-Pohl, 2003) or computer screens (e.g, Estes, 1998;Frick et al, 2009;Funk et al, 2005;Kosslyn et al, 1990).…”