Figure 2 from: Vyshedskiy A, Mahapatra S, Dunn R (2017) Linguistically deprived children: meta-analysis of published research underlines the importance of early syntactic language use for normal brain development. Research Ideas and Outcomes 3: e20696. https://doi.org/10.3897/rio.3.e20696

Figure 2 - A typical question testing subject's ability to mentally rotate an object is shown here as a 2x2 matrix with six answer choices displayed below the problem. The top row of the matrix indicates the rule: "the object in the right column is the result of 45° clockwise rotation." Applying this rule to the bottom row, we arrive at the correct answer depicted on the right.