Table 2.

The three experimental groups, with the number of subjects tested in each.

Group 1 N = 22	Trial C1	Trial C2	Trial C3	Trial L1	Trial L2	Trial L3	Trial S1	Trial S2	Trial S3
Group 2 N = 23	Trial C1	Trial L1	Trial L2	Trial L3	Trial S1	Trial S2	Trial S3	–	–
Group 3 N = 23	Trial C1	Trial S1	Trial S2	Trial S3	Trial L1	Trial L2	Trial L3	–	–

Trials with the corresponding door configuration are indicated.

C closed door, L large door is open, S small door is open.