Table 1.

Experimental design

Group	Day 1	Day 2	Day 3	Day 4
1	Trained in A	Trained in B with ACSF	Tested in B	Tested in A
2	Trained in A	Trained in B with APV	Tested in B	Tested in A
3		Trained in A with ACSF	Tested in B	Tested in A
4		Trained in A with APV	Tested in B	Tested in A

Animals in groups 1 and 2 undergo pretraining in chamber A before context conditioning in chamber B. Groups 3 and 4 are controls for the context generalization effect between chambers A and B.