Figure 1.

The stimulus materials of the LCT (Metzler, 2000). Left panel: 27 small wooden cubes (3 by 3 by 3 cm each) are scattered on the table in front of the subject. Eight of them have three white surfaces and three wooden surfaces. Twelve cubes have two white and four wooden surfaces, six cubes have one white and five wooden surfaces. One cube is all wooden. Right panel: The subject is instructed to construct a single large cube—by using all small cubes—whose outer surface is entirely white. Reproduced from Kopp et al. (2008) with permission of the copyright owner.