Table 1.

Type of trials used during fMRI scanning^a

	Order α	Order ß
Experimental trials
C1	S1, S2	S2, S1
C2	S3, S4	S4, S3
Catch trials
C3	S1, S3	S3, S1
C4	S2, S4	S4, S2
C5	S1, S4	S4, S1
C6	S2, S3	S3, S2

^aFor each different “compound rule” (e.g., C1), the composing single rule (e.g., S1, S2; Figure 1) and the relevant order (α or ß) are reported. The first single rule mentioned is always the single rule to be evaluated first (order factor).