Figure 1.

Stimuli in the blocks-copying task (Experiments 1 and 2, Set A). In each trial, subjects viewed three simulated rooms (the model, the workspace, and the source), each containing a set of blocks. Their task was to re-create the arrangement of blocks in the model as closely as possible by replacing the blocks in the workspace with blocks from the source. In illuminant-constant trials (top row), all three rooms were rendered under the same simulated illuminant (6500 K). In illuminant-changed trials (bottom row), the simulated illumination of the workspace and the source were changed to bluish (12,000 K), and the model remained under a 6500 K illuminant.