Figure 2.

Example cWMT card deck. Five cards decks, one for task training and one for each of the four runs performed by each subject, were constructed based on the same principle. Each deck consisted of sixteen cards representing all combinations across four stimulus dimensions: number (two or three), color (e.g., orange or blue), shape (e.g., X or O), and orientation (horizontal or vertical). Each deck of cards used unique colors and shapes.