Table 1. The experimental subjects.

	Session 1			Session 2			Session 3
Subject	Transforms	Trials	Delay	Transforms	Trials	Delay	Transforms	Trials
1	120	745	3	118	786	9	120	850
2	150	947	3	150	830	8	200	1102
3	144	827	4	150	860	8	180	977
4	133	944	3	140	929	9	160	1075
5	150	871	5	150	838	8	206	1076
6	140	970	6	124	928	9	155	1117
7	160	1090	5	151	1035	7	144	955
8	133	861	3	108	731	7	134	762

The number of transformations and trials in each experimental session, and the lengths of the delay in days between sessions.