“…Additionally, the improvement over time at all angles did not differ by side, which leads us to the assumption, that the same mental transformation processes are used on both sides. This is also supported by the lower reaction times of participants with previous experience with the two-figure layout, although learning effects are not fully understood (Heil, Rösler, Link, & Bajric, 1998;Rahe, Ruthsatz, Jansen, & Quaiser-Pohl, 2019;Uttal et al, 2013).…”